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ACANTHOLIMON - (Plumbaginaceae) Acantholimons, or prickly thrifts, form dense cushions of spiny sharp-tipped leaves and attractive bloom stalks with lovely pink or white flowers followed by attractive everlasting bracts. All are very heat and drought tolerant once established.
A. halophylum - NEW Compact mounds of needle-like, blue-green foliage and spikes of white to light pink flowers in spring. 4"(7") x 10" Sun $code A* (Photo)
(Brassicaceae) A very
useful group of Mediterranean plants particularly well suited for sunny walls
and crevices. Most have glaucous foliage and racemes of pink flowers.
A. lepioides - NEW Dwarf subshrub with mahogany colored stems and narrow, glaucous leaves; dense clusters of fragrant pink flowers. Growing on dry gypsum hills in Turkey. 4” x 6” Sun $code A (Photo)
A. schistosum - RENEW Neat mounds of glaucous blue foliage covered in spring with stems of aromatic pink flowers followed by decorative seed heads. Turkey 2”(5”) x 8” Sun $code A (Photo)
ALLIUM - (Amaryllidaceae) A very large genus containing a
wide variety of plants including the onion, garlic, chives, scallion, shallot
and the leek. A vast majority of the species occur in temperate climates in the
northern hemisphere and all produce flowers in the form of an umbel on top of a
leafless stalk. With so many species to choose from, there is an Allium to suite
every situation and flowering season.
A. cyaneum - A delightful miniature forming tidy clumps of grassy foliage and nice cobalt-blue flowers in mid to late summer. China 5" x 4" Sun, Part Shade $code A (Photo)
A. cyathophorum 'Farreri' - One of the most attractive dwarf onions, forming tight clumps of grassy leaves with nodding clusters of deep violet-purple flowers with sharply pointed petals. China 12"x6" Sun, Part Shade $code A (Photo)
A. senescens glaucum - A very nice dwarf form with swirling silver-gray foliage and short stems of light pink flowers. Europe to Siberia 2”(5”) x 5” Sun, Part Shade $code A (Photo)
A. togashii - New A very nice dwarf species, forming clumps of grassy foliage in spring producing attractive pale pink flowers in late summer. Japan 4"(6") x 4" Sun, Part Shade $code A (Photo)
ALOINANTHUS - (Aizoaceae)
This newly created 'Genus' contains complex hybrids between the South African
species of Aloinopsis
and have been selected for their unique flower colors. They are not reliably
hardy here in zone 5 but will survive some winters in warmer microclimates.
They are best planted among rocks with a southern exposure.
A. x ’High Noon’ - A selection from the Aloinopsis x Nananthus cross with magnificent light yellow flowers with an electric blue-pink wash at the end of each petal. 2” x 4” Sun, Xeric $code A* (Photo)
A. x ‘Morning Sky’ - A selection with flowers that open yellow and then age to dark orange with a blue-pink wash at the tip of each petal. 2” x 4” Sun, Xeric $code A* (Photo)
A. x ‘Opera Mauve’ - This selection sports attractive opera mauve (yes this is a real color) flowers that do not change color as they age. A very good performer! 2” x 4” Sun $code A* (Photo)
ALOINOPSIS - (Aizoaceae)
An outstanding group of succulent plants from South Africa. All form
caespitose clumps of thick succulent leaves and produce spectacular floral
displays from yellow to various shades of red and magenta. The rosettes of
leaves sit atop a large carrot-like root that must be protected from excessive
moisture. This can often be accomplished by planting in rock crevices or walls. These plants are
not reliably hardy in zone 5 but will survive some winters in warm
A. acuta - Very tight clumps of relatively small succulent leaves and nice yellow flowers. 2" x 4" Sun, Xeric $code A* (Photo)
A. spathulata - RENEW A gem from the rich alpine flora of South Africa! Dense mounds of spatulate, succulent, blue-green leaves covered in spring with large magenta flowers. 2” x 4” Sun, Xeric $code A* (Photo)
AMSONIA - (Apocynaceae) A small group of perennial herbs native to North America and Eastern Asia. The tall stems are covered with attractive narrow foliage and clusters of star-shaped flowers are produced at the apex of each stem. Most are quite drought tolerant and of easy culture.
A. peeblesii - Numerous stems of narrow green leaves and apical clusters of blue buds that open into attractive white flowers. Coconino Co., AZ 12" x 10" Sun $code A (Photo)
are an ever popular group of plants with a species to fit almost every taste and
location. In general, there are two types: the taller species of the meadow and
woodland and the dwarf species from drylands and alpine screes.
A. saximontana - NEW A beautiful dwarf alpine with tufts of blue-green leaves and numerous blue and white flowers with short spurs. An endemic of the front range of Colorado. 5” x 8” Sun, Part Shade $ code A (Photo)
ARENARIA - (Caryophyllaceae) Often referred to as ’Sandworts’, this genus contains numerous dwarf, drought tolerant species that form attractive buns or mats of spiny congested foliage. Most are small and are best suited to troughs or small rock gardens.
A. hookeri v. desertorum - Forms extremely tight low buns of very small green needle-like foliage. The buns are covered with short stems of small white flowers in early summer. Well suited for a small rock garden or sunny trough. Uintah Co., UT 1”(2”) x 4” Sun, Trough $code A (Photo)
A. 'Wallowa Mountain' - An excellent groundcover with very short and compact bright green foliage that resembles moss yet is very drought-tolerant. Superb for xeric and fairy gardens, permanent containers, and between paving stones in paths and on patios. A Plant Select® Introduction for 2015. 1" x 24" Sun, Part Shade, Xeric $code A* (Photo)
ARCTOTIS adpressa - (Asteraceae) Rosettes of succulent, iridescent silver foliage adorned in early spring with 3” white daisies with peach and maroon reverses. This gem thrives in ordinary garden conditions and forms spectacular 12” to 15” mats. A beautiful foliage plant when not in flower. Very cold hardy but does not do well in hot dry situations. South Africa 2”(5”) x 12” Sun, Part Shade $code A (Photo)
ASTRAGALUS - (Fabaceae) This genus has some of the showiest flowers in the pea family, combined with attractive foliage cushions and interesting seed pods. Most are very tough and can withstand poor soil, full sun and xeric conditions.
A. amphioxys 'San Felipe'- A gorgeous species found growing near the San Felipe Indian Pueblo south of Santa Fe, NM. The large pads of attractive silver foliage are covered with large dark pink flowers in early spring. Outstanding! 4" x 10" Sun, Xeric $code A (Photo)
A. angustifolius ssp. pungens-
outstanding species that forms impressive compact mounds of silver-gray pinnate
foliage covered with white flowers in late spring. Easily grown Romania 6” x
20” Sun, Xeric $code A*
A. chamaeluce - Small mounds of silver-gray foliage and purple-pink flowers with a white banner. Rio Blanco Co., CO 2” x 4” Sun, Xeric $code A* (Photo)
A. detritalis - One of the best! Attractive tufts of linear, silver leaves topped with racemes of bright magenta flowers. A native from the prairies and foothills of western Utah. 2”(3”) x 4” Sun, Xeric $code A (Photo)
A. lutosus - An endemic to the oil shales of
Colorado, the small mats of prostrate pinnatified leaves produce small white
flowers followed by elegant sausage-like seed pods. Rio Blanco, Co., CO 1"
x 4" Sun, Xeric
$code A* (Photo)
A. mollissimus v. thompsoniae - Very attractive clumps of long silver pinnate foliage and short stalks of purple flowers. The flowers are followed by white fuzzy seed pods. San Juan Co., UT 3”(7”) x 9” Sun, Xeric $code A (Photo)
A. utahensis - A very distinctive Astragalus with light gray pubescent leaves and large luminescent pink flowers. 2” x 6” Sun, Xeric $code A* (Photo)
BERGERANTHUS - (Aizoaceae) A small genus of succulent plants native to South Africa. A number of the species grow at high elevation and have proven to be quite cold hardy.
- A very hardy South African succulent with
attractive dark green clumps of three-sided leaves and large yellow flowers with
many narrow petals.
2” x 5” Sun, Xeric $code A (Photo)
B. jamesii v. albiflora - This is
a white-flowered form of the species. 2" x 5" Sun, Xeric $code
BUKINICZIA cabulica - (Plumbaginaceae) Blue-green rosettes with unusual mottled leaves. Outstanding foliage plant with pink flowers the second year. Reseeds nicely. Pakistan 1"(6") x 6" Sun, Biennial $code A (Photo)
CAMPANULA - (Campanulaceae) The bellflowers are numerous and varied, providing species for a variety of settings and exposures. Some of the species are particularly useful as wall plants and will flourish in the tiniest crevice. They are generally easy to cultivate and will provide good color throughout the growing season.C. coriacea - A choice Turkish species with nice clusters of upward-facing lilac-blue bells atop dense tufts of leathery, coarsely-toothed, pubescent foliage. Turkey 3”(6”) x 5” Sun, Part Shade $code A* (Photo)
C. topaliana - A ground hugging mat of pubescent, gray-green leaves studded with light blue flowers from early summer to frost. Makes a spectacular wall plant with stems clasping the rocks like a giant spider. 2” x 8” Sun, Crevice/Wall $code A (Photo
CONVOLVULUS - (Convolvulaceae) A genus containing some of the most coveted as well as some of the most hated plants (bindweed) in the garden. Fortunately, we offer only the former - tight mats of non-invasive foliage and attractive flowers.
C. compactus - Congested mats of shimmering silver foliage and sessile white flowers. Superb! Turkey 2” x 8” Sun $code A* (Photo)
CORYPHANTHA - (Cactaceae) A large genus of small, ball-shaped cacti found growing from British Columbia and southern Canada, throughout the United States and into southern Mexico. They generally have attractive spination and often large showy flowers. A number of species, including those listed below, have demonstrated excellent cold tolerance and make excellent rock garden subjects as well as useful trough plants.
C. sheerii - NEW A very
attractive ball cactus with large, blue-green tubercles armed with 6-8 stout
straw-colored radial spines and one central. Large yellow flowers with red centers are produced
from the apex sporadically through the summer. Arizona 5" x 5" Sun $code
CYRTANTHUS breviflorus -
(Amaryllidaceae) A robust form from the Drakensburg Mountains in South Africa,
with strap-like leaves emerging in spring followed by attractive yellow flowers.
The bulbs have proven hardy here through sub-zero winter temperatures growing in
full sun in irrigated rock garden conditions. Planting next to or within the
foliage of other plants to provide some cover in winter has proven to be most
successful. South Africa 8" x 4" Sun $code A
A genus of plants well
represented in western North America and generally found growing in harsh, dry
situations. They are a challenge to cultivate in the garden, requiring xeric
conditions and strong light. The smaller species have proven to make good
C. humilis v. nana - RENEW Compact buns of silver-gray, tomentose foliage covered with very attractive, nearly caespitose, white flowers with bright yellow centers in early spring. An excellent trough specimen. Montrose Co., CO 2" x 4" Sun, Xeric, Trough $code A* (Photo)
DAPHNE - (Thymelaceae) A genus of evergreen flowering shrubs that contains some of the most desirable plants for the rock garden. They are notoriously difficult to produce and do not thrive in pots. Small plants transplant more reliably, so purchasing more expensive large plants is usually a mistake. Always plant in well drained soil in full or part shade. Once established, they are quite drought tolerant so do not over water. All of our plants have been grown using the biological fungicide Rootshield to help protect the roots from fungal attack.
D. arbuscula v. radicans - Dwarf shrubs of dark green foliage and very attractive light pink flowers. 3" x 8" Sun, Part Shade $code A** (Photo)
D. arbuscula ‘Muran Pinnacle’ - A great miniature form of the species with dark green foliage and dark pink flowers. 4” x 6” Sun, Part Shade, Trough $code A** (Photo)
D. x schlyteri 'Money-Coutts' - One of the most reliable dwarf cultivars originally grown by Money-Coutts Nursery. This outstanding cultivar forms dense mounds of narrow, dark green foliage and deep pink-purple flowers produced in spring and again in fall. A real winner! 6” x 12” Sun, Part Shade $code A** (Photo)
D. x susannae 'Lawrence Crocker' - One of the best and easiest of the small hybrids. A cross between D. arbuscula and D. collina, forming a dense mound of evergreen foliage covered in spring with fragrant lavender-pink flowers. Sporadic flowering continues throughout summer into fall. 12” x 24” Sun, Part Shade $code A** (Photo)
DELOSPERMA - (Aizoaceae) A large genus of succulent plants native to South Africa. Most are not winter-hardy but there are high altitude species that will thrive in cold climates. A number of these species have been introduced into cultivation by our good friend Panayoti Kelaidis of the Denver Botanic Gardens. They all have beautiful flowers and interesting succulent foliage.
D. 'Alan's Apricot' PPAF (Alan's Apricot
ice plant) - A superior form with large 2" flowers covering the foliage
nearly all summer long. Flower color changes seasonally from a true
orangey-apricot to soft orangey-pink. Brought to Plant Select® by Alan Tower,
Spokane, WA. The hardiest and longest-blooming of the Plant Select® ice
plants. A Plant Select® Introduction for 2016.
1"(2") x 18" Sun, Part Shade $code A*(Photo)
D. ‘Beaufort West’ - RENEW Collected in the Great Karoo of South Africa near the town of Beaufort West, this little gem produces tight mounds of green succulent foliage adorned in spring and summer with sessile bright pink flowers. 1.5” x 5” Sun $code A (Photo)
D. 'Blut' - A superb new ice plant
originally discovered by Nurseryman Kelly Grummons, owner of Timberline Nursery
in Arvada, CO. The mat of deep green evergreen foliage is covered with
magenta-red flowers in spring and sporadically throughout the season. 2" x
36" Sun $code A
D. carterae 'Carlile Pink' - A cute little species with light green succulent foliage and delicate light pink flowers with dark pink centers. This plant appeared in the garden and it’s origin is unknown. 2" x 8" Sun $code A (Photo)
D. cooperi ‘Select Dwarf’ - A smaller version of the common D. cooperi but this one seems to be one zone hardier. This cultivar has proven to be one of the best spreaders, covering large areas over time, and the foliage remains attractive throughout the winter. 1"(2") x 36" Sun $code A (Photo)
D. dyeri 'Psdold' (RED MOUNTAIN® ice plant) - A new hardy ice plant from the mountains of South Africa. The congested mats of dark green foliage are studded with spectacular dark orange-red flowers from spring to fall. More drought and heat tolerant than many of the alpine ice plants. A Plant Select® Introduction for 2007. 1" x 8" Sun $code A* (Photo)
D. GRANITA® Orange Ice Plant - NEW
This high performing new ice plant, like it's kin GRANITA® Raspberry, closely
hugs the ground, vigorously spreads and is densely covered with large flowers in
varying shades of rusty orange. A. Plant Select Introduction for 2019.
1"(2")_ x 12" Sun$code A*
D. GRANITA® Raspberry Ice Plant - A beautiful and unique new ice plant discovered by John Stireman among hie planting of FIRE SPINNER™. A vigorous and floriferous plant with large, striking, iridescent raspberry flowers that are densely packed. A Plant Select® Introduction for 2018. 1"(2") x 12" Sun, Part Shade $code A* (Photo)
D. 'P001S' (FIRE SPINNER® ice plant) - This new introduction forms fast spreading carpets of green-apple foliage that keeps its shiny presence through winter. The flowers are massed in spring, but reappear periodically through summer. The purple and orange flowers represent a dramatic color breakthrough for the hardy ice plants. A Plant Select® Introduction for 2012. 2" x 18" Sun, Part Shade $code A* (Photo)
D. 'Psfav' (Lavender Ice ice plant) - We are proud to offer this exciting new ice plant selection that was discovered by our good friends at Perennial Favorites Nursery. Similar in foliage and habit to D. Table Mountain® but with stunning lavender flowers. To date it has demonstrated excellent cold and drought tolerance. A real winner! A Plant Select® Introduction for 2009. 2” x 36” Sun $code A* (Photo)
D. 'PWWG02S' (RED MOUNTAIN® FLAME ice
plant) - A new hybrid selection of South African ice plant with small
succulent evergreen leaves and large blazing red-orange flowers in late spring
and early summer. This tough, vigorous cold-hardy selection was made by David
Salman of Waterwise Gardening. A Plant Select® Introduction for
2016. 2" x 24" Sun, Part Shade $code A*
D. sp. ‘Lesotho Pink’ - An exciting new introduction first offered by High Country Gardens. Forms very compact mats of dark green, evergreen foliage covered from early to mid spring with large, deep pink flowers. Excellent cold hardiness. Lesotho 1” x 18” Sun, Part Shade $code A* (Photo)
D. 'John Proffitt' (TABLE MOUNTAIN® ice plant) - This ice plant is destined to become one of the greats! An outstanding ground cover with dark green wedge-shaped leaves that are covered throughout the growing season with lustrous, fuchsia flowers. Hardier than D. cooperi, the leaves remain turgid and green, often tinged with purple, throughout the winter. Don’t be without this one! A Plant Select® Introduction for 2002. 2” x 36” Sun $code A* (Photo)
DIANTHUS - (Caryophyllaceae) An indispensable group of plants that are easily grown and provide outstanding color and texture in the garden. There are all sizes and shapes but we are particularly fond of the smaller bun-forming species that fit well into the smaller rock garden or trough. No garden should be without them.
DRABA - (Brassicaceae) A large group of bun forming plants with yellow or white crucifer flowers. With a few exceptions, all are easy to grow. They are among the earliest to flower, marking the beginning of early spring activity in the garden.
D. imbricata - Buns of compact foliage adorned with scapes of bright yellow flowers. Caucasus 1”(2”) x 4” Sun, Alpine $code A* (Photo)
D. zapateri (syn. D. dedeana) - Cushions of attractive
, bright green, ciliated foliage and pure white flowers on short stems.
One of the best white flowering species. Mountains of northern and
eastern Spain 2"(3") x 5" Sun, Part Shade $code A
DRACOCEPHALUM - (LAMIACEA) A genus of 60 to 70 species native to the temperate regions of the Northern Hemisphere. Often referred to as dragonheads, they are generally not challenging to grow and many of the species make excellent rock garden subjects.
D. paulsenii - Small prostrate mats of gray-green crenate foliage adorned with racemes of purple flowers. An outstanding species for troughs and crevice gardens. Tajikistan, Koitezek Pass, Pamir 1"(2") x 6" Sun, Part Shade $code A* (Photo
EBRACTEOLA wilmaniae - (Aizoaceae) An outstanding South African succulent forming compact highly branched rosettes of trigonus gray-green leaves. The white to dark-pink flowers appear in early spring and flowering continues sporadically throughout the growing season. A slow growing mat will form with age. This species has proven to be reliably winter hardy for us. North Cape Province, SA 2” x 4” Sun $code A* (Photo)
ECHINOCEREUS - (Cactaceae) A large group of heavily-spined cacti often called ‘Hedgehog Cactus’. Within this genus are many of the most winter hardy cacti. Most have extremely large showy flowers that appear in early summer and all are easily grown if given full sun and well drained soil.
E. reichenbachii v. albispinus -
Clumping barrels covered
with dense white spines adorned with pale pink flowers. 3" x 2" Sun, Xeric
$code A* (Photo)
E. reichenbachii v. caespitosus - Single, mushroom-shaped stems with chalky-white radial spines and no centrals. The large flowers are light pink with a white center. Easy to grow and very hardy. Kimble Co., TX 5" x 3" Sun, Xeric $code A* (Photo)
E. reichenbachii v. comanchensis - NEW Tight, pectinate spines and large bright pink flowers. The most northwest population of E. caespitosus type found. Kowa Co., OK 5" x 2" Sun, Xeric $code A** (Photo)
ECHIUM amoenum (Red Feathers)- (Boraginaceae) A compact, columnar borage from the Caucasus that looks for all purposes like a spring blooming Liatris that’s gone rusty. The dark reddish-brown flowers are attractive and the plant will re-bloom if deadheaded. A Plant Select® Recommendation for 2010. 4”(10” ) x 4” Sun, Part Shade $code A* (Photo)
EDRAIANTHUS - (Campanulaceae) A very useful and attractive group of Mediterranean plants with grass-like foliage and clusters of up-facing bell flowers. They thrive in sunny locations and are particularly effective in walls and crevices.
E. jugoslavicus - NEW Similar to E.
graminifolius but with larger pale blue flowers. Suva Planina, Macedonia 2"(3")
x 4" Sun, Part Shade $code A
E. niveus - Loose cushions of dark green linnear foliage covered in spring with clusters of white flowers on short stems. Dinaric Alps, Bosnia 2"(3") x 4" Sun, Part Shade $code A* (Photo)
E. pumilio - Mounds of slender, rigid, blue-green leaves covered in spring with
caespitose, upward facing, blue bell flowers. Very showy and particularly well suited for
walls and crevices. 2" x 6” Sun, Part Shade $code A
ERIGERON - (Asteracea) A vast and variable race of composites many of which make
good garden subjects. Most are easy to grow and can be used in a variety of
garden situations from the open garden to walls and crevices.
E. compositus ‘Red Desert’ - This very dwarf form was found growing in rock crevices near Baggs, Wyoming. Very condensed foliage and white flowers on short stems. Great for walls and crevices! 1”(2”) x 6” Sun $code A (Photo)
E. scopulinis - Dense mats of small, shiny dark green leaves and cute little white flowers on 1/2" stems in spring. Good for troughs and between rocks. 1"(1.5") x 12" Sun, Part Shade $code A (Photo)
ERIOGONUM - (Polygonaceae) The ‘buckwheats’or ‘sulphur flowers’ are a dominant
presence on the prairies and mountain screes of the West. They come in an
amazing array of forms and colors, from tiny mat formers and mini-shrubs, to
fantastic mounds of silver tomentose leaves that erupt into dense domes of
‘chicken wire’ covered with tiny flowers.
E. compositum - Rosettes of lanceolate, tomentose foliage produce stout stems bearing umbells of attractive yellow flowers. 3"(8") x 8" Sun, Xeric $code A* (Photo)
E. kennedii v. alpigenum - RENEW One of the more easily grown species, forming nearly flat mats of tiny silver-white elliptical leaves in tiny rosettes. The near stemless red and white flower heads sit atop the mats. 1"(1.5”) x 6” Sun, Alpine $code A* (Photo)
E. kennedii v. austromontanum - NEW Very similar to v. alpigenum but with flowers on much taller stems. 1”(3") x 8” Sun, Alpine $code A* (Photo)
E. pulchrum - A perfect tiny shrub with clouds of pure white, ivory or pink flowers in late summer and autumn. 5”(8”) x 8” Sun, Xeric $code A* (Photo)
E. umbellatum v. aureum 'Psdowns' (KANNAH CREEK® Buckwheat) - An excellent garden plant that seems to be more moisture tolerant than most. The spreading green foliage changes to vivid purple-red in winter and masses of yellow flowers appear from May to July, turning orange as they age. Plant Select® Introduction for 2007. W. United States 8”(12”) x 20” Sun $code A* (Photo)
E. umbellatum v. dumosum - Mats of small oval leaves, densely tomentose on both surfaces, and bright yellow flowers with crimson streaks. Siskiyou Co., CA 3"(6") x 8" Sun, Xeric $code A* (Photo)
E umbellatum v. humistratum - Dense mats of silver-gray leaves and large umbels of bright yellow flowers on strong upright stems. The flowers change to shades of orange and red as they age. A choice alpine from the Trinity Mountains, Siskiyou Co., CA 3”(6”) x 8” Sun, Alpine $code A* (Photo)
E. umbellatum v. humistratum 'Tahoe' - A great form of variety, with even more condensed foliage and shorter spikes of yellow flowers. Develops into a magnificent specimen. Lake Tahoe, CA 3"(5") x 8" Sun, Xeric $code A* (Photo)
ESCOBARIA - (Cactaceae) A North American genus of solitary to clump-forming, globular cacti with a number of reliably cold-hardy species. The apical flowers appear in early summer.
E. sneedii v. leeii - Small clumps with short white spines and small salmon-pink flowers in early summer. Very hardy and one of the best species for trough culture. 2" x 4" Sun, Xeric, Trough $code A* (Photo)
E. vivipara - RENEW Globes of interwoven brown and white spines with dark brown tips. Attractive bright pink flowers. Pueblo Co., CO 3” x 3” Sun, Xeric $code A* (Photo)
E. vivipara v. buoflama - Globes of densely interwoven white spines with dark brown tips. Attractive flowers that vary from yellow to peach to pink. 3” x 3” Sun, Xeric $code A* (Photo)
GERANIUM dalmaticum (Dalmatian Pink Cranesbill) - A low-growing diminutive perennial with dainty cleft, aromatic glossy green leaves that turn red in the fall. The mats are covered with clear pink flowers from late spring to early summer. A Plant Select® Petites Recommendation for 2014. 4" x 10" Sun, Part Shade $code A (Photo)
GLAUCIUM - (Papaveraceae) Members of this Mediterranean genus are known
as ‘horned poppies’ because of the horn-like seed pods that form after
flowering. Most species have very attractive incised, tomentose, silver foliage
attractive flowers. Most are very drought tolerant.
G. acutidentatum - An outstanding species that forms compact mounds of attractive , tomentose silver foliage and a profusion of deep orange flowers with black throats. The flowers are followed by the characteristic horn-like seed pods. Difficult to propagate, so seldom offered. Can be easily deadheaded after flowering to control naturalization. Turkey 10”(20”) x 20” Sun, Xeric $code A* (Photo)
GRASSES (ORNAMENTAL) - There are many species of ornamental grass that are of great use in the garden and landscape, providing texture and structure in all seasons. Most of the species we list can be used effectively in the rockery. All will grow in average garden conditions.
Bouteloua gracilis 'Blonde Ambition' 'PP 22,048 - An impressive, highly ornamental form of Western native grass with tall, upright stems. Showy chartreuse, aging-to-blonde seed heads hold their straight shape and are displayed high above the foliage through winter, providing many months of color and texture. Developed by High Country Gardens. A Plant Select® Introduction for 2011. 30" x 30" Sun, Partial Shade $code A* (Photo)
Calamagrostis brachytricha (Korean Feather Reed Grass) - A nice clump-forming grass with narrow arching foliage and very attractive straw colored seed heads. This species flowers in early fall and will perform in slightly shaded exposures. A Plant Select® Recommendation for 2009. 24"(36") x 15" Sun, Part Shade $code A (Photo)
Muhlenbergia reverchonii 'PUND01S' (UNDAUNTED® Ruby Muhly) - Native to a small area in north Texas, this medium sized grass explodes into a profusion of tiny reddish-pink seed heads floating above thin, mid-green foliage. Flowering in early fall, this grass is resistant to deer browsing. A Plant Select® Recommendation for 2014. 30" x 20" Sun $code A* (Photo)
Sporobolus wrightii (Giant Sacaton) - A wonderful southwestern alternative to Pampas grass. This species develops into a fountain of luxuriant foliage that explodes with fine-textured seed heads in late summer. A Plant Select® Recommendation for 2006. 6’ x 4’ Sun, Part Shade $code A* (Photo)
HESPERALOE parviflora (Red Yucca) - (Agavaceae) You will find this Agave relative in use
extensively as a landscape plant in Phoenix, AZ and other mild climates, but it
has proven perfectly hardy for us here in Colorado. Absolutely no winter damage,
so the plants develop into attractive specimens. Produces tall spikes of
beautiful coral-red flowers that last throughout the summer. A Plant Select®
Recommendation for 2010. 18”(36”) x 18” Sun $code A
HETEROTHECA jonesii x villosa 'Goldhill' (Goldhill Golden-Aster) - Tufted grey "scatter rugs" of fuzzy foliage make dense mounds in a sunny garden. The mounds are clothed with cheerful yellow daisies from late winter to fall. This natural hybrid combines the dense habit of its rare parent H. jonesii with the vigor of the more common H. villosa. 'Goldhill' is apparently sterile so won't seed around like its common parent. Prefers well drained soil. A Plant Select® Petites Introduction for 2015 3" x 8" Sun $code A* (Photo)
HEUCHERA - (Saxifragaceae) A large genus of perennial herbs mostly from western North America. The rhizomatous roots are covered with attractive tufts of rounded-cordate foliage and the flowers are born on tall, slender stems. There are a multitude of fancy hybrids on the market today, but the natives are better suited for the rock garden. Most are quite drought tolerant.
H. abramsii - A choice dwarf Heuchera from the San Gabriel Mountains of California. Attractive clumps of glossy green foliage adorned with clouds of nice light pink flowers. 3"(6") x 6" Sun, Part Shade $code A (Photo)
H. pulchella (SANDIA CORALBELLS) - Attractive mats of dark green foliage adorned with short spikes of pink to burgundy, hairy bells. A Plant Select® Petites Recommendation for 2013. Bernalillo Co., NM 3"(6") x 8" Sun, Part Shade $code A* (Photo)
HYMENOXYS - (Asteraceae) A large genus of yellow-flowered composites found on the prairies and extending in range to the alpine tundra. Most are too large and course for the rock garden but there are also some real gems that no garden should be without.
H. acaulis 'Las Vegas' - A dwarf form found near Las Vegas, NM with narrow silver foliage and yellow flowers on short stems. San Miguel Co., NM 1"(2") x 3" Sun, Xeric $code A* (Photo)
H. torreyana - Mounds of woolly silver-green leaves and large sessile yellow daisies in early spring. One of the best! Utah 3”(4”) x 6” Sun $code A (Photo)
INULA verbascifolia - (Asteraceae) Mounds of beautiful gray tomentose leaves with nice, short-rayed yellow flowers in summer. Very effective when planted in hot, sunny rock garden settings or hardscape crevices. 4”(6”) x 10” Sun $code A (Photo)
IRIS hookeri (Dwarf Beach-head Iris) - (Iridaceae) Tidy clumps of attractive green foliage framing large, porcelain-blue flowers in late spring and early summer. One of North America's most beautiful native irises, and provides foliage and textural accent for small gardens. A Plant Select® Petites Recommendation for 2014. 4"(7") 7" Sun, Part Shade $code A* (Photo)
JOVIBARBA heuffelii - (Crassulaceae) Very similar to Sempervivums
but unique in that they do not produce offsets on stolons but rather increase by
the existing rosettes dividing. They form tight clusters of colorful,
durable rosettes that will grow in brighter situations and seem to be less prone
to browsing by wildlife. The rosettes retain their attractive colors throughout
J. heuffelii 'Gold Bug' - Attractive green rosettes that turn golden-green in early spring. 2" x 1.5" Sun, Part Shade $code A (Photo)
J. heuffelii 'Hot Lips' - Dark purplish-red leaves with green bases and silver edges. 2" x 2" Sun, Part Shade $code A (Photo)
J. heuffelii 'Irene' - Burgundy-red rosettes with light yellow-green at the base and on new leaves. 2" x 3" Sun, Part Shade $code A*(Photo)
J. heuffelii 'Mystique' - Unusually short, wide, dark reddish-purple leaves forming medium sized rosettes. 2" x 3" Sun, Part Shade $code A* (Photo)
J. heuffelii 'Orion' - Soft gray-green leaves with a silver edges. 2" x 2" Sun, Part Shade $code A (Photo)
J. heuffelii 'Sylvan Memory' - Dark reddish-purple leaves with a silver edge. 2" x 2" Sun, Part Shade $code A (Photo)
J. heyffelii 'Tan' - Attractive
bronze-red leaves with a touch of blue-green at the base. 2"x2" Sun, Part Shade
$code A* (Photo)
LESQUERELLA – (Brassicaceae) The members of this genus, often referred to as ‘bladder-pods’, form inflated, silvery-pubescent seed pods after flowering. All flower early in spring when very little else is in flower.
L. ovalifolia - Compact mounds of silver-gray oval foliage and loose racemes of nice yellow flowers in early spring. Pueblo Co., CO 2"(4") x 5" Sun, Xeric $code A (Photo)
MOLTKIA petraea - (Boraginaceae) A spectacular, highly-branched sub shrub forming a gradually increasing mounded mat of blue-green foliage and producing numerous 4" flowering stems topped with clusters of dark sky-blue flowers. Very drought tolerant. Albania to Dalmatia 5"(8") x 12" Sun $code A* (Photo)
OPUNTIA - (Cactaceae) The second largest genus of cactus with the most extensive north-south distribution in the family. The plants are composed of numerous jointed cylindrical stems or flat pads that are generally heavily armed with long spines that arise from a small circle of small spines called glochids. In some cases, only the glochids are present. Many of the species and cultivars produce spectacular floral displays and are very popular in xeriscape gardens.
O. debreczyi v. denuda 'Potato' - Globe-shaped, spherical stems with short glochids and occasional yellow flowers. The stems turn shades of purple in winter. Ideal for rock gardens. Colorado Plateau into south-central Wyoming 3" x 12" Sun, Xeric $code A* (Photo)
OXYTROPIS - (Fabaceae) A group of marvelous dry land plants, much like Astragalus, with pinnate leaves and heads of pea flowers. Most require xeric treatment and make excellent trough subjects.
O. multiceps - Silvery mounds of small, lanceolate leaves adorned in spring with bright pink flowers followed by white calyxes that inflate as the seed develops. An outstanding trough plant.. Wyoming native 2” x 6” Sun, Xeric $code A (Photo)
O. prenja - Cushions of white lanate foliage and dark purple flower. This species has proven to be a reliable performer in troughs and in the garden. Mavrovo, Macedonia 3”(5") x 4” Sun, Alpine $code A* (Photo)
O. splendens - Erect clumps of whorled, pubescent, silver leaves and woolly heads of pink flowers. Park County, CO 4”(6”) x 4” Sun, Alpine $code A (Photo)
O. williamsii - RENEW Attractive mats of tomentose gray foliage and capitate heads of deep purple flowers. Annapurna Himal, Nepal 2"(4") x 6" Sun $code A* (Photo)
PEDIOCACTUS - (Cactaceae) A small genus of cacti from western North America containing 6 to 9 species (depending on your taxonomic philosophy) , many of which are endangered in habitat.
P. simpsonii - NEW The most available of the Pediocactus species and also one of the easiest to grow in the garden. This variety produces a ring of attractive, dark pink flowers in early spring. Very cold hardy but does not do well where summers are hot and humid. 3" x 5" Sun, Xeric $code A** (Photo)
PENSTEMON - (Scrophulariaceae) From the American West, Penstemons are the work horses of the xeriscape or native garden, providing substance, shape and long-lasting color. They're also adored by hummingbirds and butterflies.
P. alamosensis - Beautiful evergreen rosettes of large, blue-gray leaves and tall stems of brilliant coral-red tubular flowers. A beautiful specimen for the xeric garden in or out of flower. A rare endemic from the mountains of southern New Mexico. 3"(15") x 8" Sun, Xeric $code A (Photo)
P. albidus - An excellent white-flowered Penstemon with green basal rosettes and compact flower spikes. Goshen Co., WY 2” (6”) x 4” Sun $code A (Photo)
P. arenicola - Very similar to Penstemon nitidus with dense spikes of glowing, sky-blue flowers atop nice rosettes of glaucous foliage. One of the first to flower in early spring. Wyoming 3”(6”) x 6” Sun, Trough $code A* (Photo)
P. harbourii - NEW Loose mats of green, leathery foliage covered in spring with short racemes of attractive powder-blue flowers. Summit Co., CO 1"(2") x 8" Sun, Part Shade, Alpine $code A (Photo)
P. laricifolius v. laricifolius - Very floriferous species with grass-like linear green foliage and numerous stiff, thin flowering stems of pinkish-purple flowers. Excellent trough plant! Fremont CO,. WY 2”(6”) x 4” Sun, Trough $code A* (Photo)
P. pseudospectabilis (Desert Beardtongue) - A large species with dark green toothed leaves that clasp the base and become disk-like on the upper parts of the stem. The flowers are glandular and pink to rose-pink. A great plant for the large dry garden. A Plant Select® Recommendation for 2015. Catron Co., NM 8"(20") x 10" Sun, Xeric $code A (Photo)
P. uintahensis - Leathery rosettes of dark-green linear-spathulate foliage and numerous short stems of very attractive sky-blue flowers. Large enough to be effective in the rock garden yet small enough to use as the centerpiece in a partly shaded trough. One of the easiest of the smaller species to grow and flower. Uintah Co., UT 2"(5") x 5" Sun, Part Shade $code A (Photo)
P. wrightii - NEW Glaucous foliage and tall stems of bright dark-pink flowers. Makes quite a statement in the late spring garden! 6”(24”) x 8” Sun $code A (Photo)
PTEROCEPHALUS depressus (Moroccan pincushion flower) - (Caprifoliaceae) Attractive congested mats of crinkled evergreen foliage and attractive, stemless, scabiosa-like mauve flowers. The flowers are followed by fuzzy, fawn-brown seed heads. A Plant Select® Petites Recommendation for 2016. Turkey Sun 2” x 12” $code A* (Photo)
RABIEA - (Aizoaceae) This genus of succulent plants is native to South Africa. The plants form compact mounds of rosettes with sickle-shaped leaves that arise from thick tuberous roots. A number of the species in this group have proven to be some of the most winter hardy of the South African succulents.
R. albipuncta - One of the most winter hardy of the South African succulents, forming hard pads of dark green triangular leaves that are covered in early spring with spectacular 1.5” glowing yellow flowers. Easy to grow if given good drainage and full sun. 2” x 4” Sun, Xeric $code A* (Photo)
ROSULARIA - (Crassulaceae ) A useful group of plants forming mounds of succulent
rosettes of small leaves with interesting variations of color and texture. All
perform well in a variety of settings, but are best displayed when planted among
rocks or in crevices. In parts of the country where sunlight is intense, provide
filtered shade at least during the afternoon and/or plant on an E to NE
R. muratdaghensis - RENEW Succulent mounds of light green rosettes tinged with red on the edges when grown in strong light. Nice cream flowers. 2"(4") x 6" Sun, Part Shade $code A (Photo)
R. sempervivum - Robust, glossy-green rosettes and stems of attractive pink flowers. Caucasus to Asia Minor 2”(5”) x 6” Sun, Part Shade $code A (Photo)
SALVIA - (Lamiaceae) Members of this group of 'sages' are very useful in providing color to the garden from late spring through summer and into fall.. The aromatic foliage provides interesting shape and texture and large tubular two-lipped flowers are produced in whorls along the tall flower spikes. Most require little water and are easily grown.
S. dorrii - Extremely aromatic silver foliage and glowing purple flowers. This ‘purple sage’ of the American West makes a very striking specimen in the xeric garden. 8"(12") x 12" Sun, Xeric $code A* (Photo)
S. pachyphylla (Mojave Sage) - An exciting introduction from the mountains of
California! This shrubby perennial is much like S. dorrii but larger in all
aspects. The intensely aromatic, evergreen , silver-green leaves set off
persistent mauve bracts surrounding small blue flowers. Flowering from June to
frost. A Plant Select® Introduction for 2005. Spectacular! 30” x 30” Sun $code
S. phlomoides - An extremely attractive species from Morocco, forming rosettes of tomentose, gray-green foliage and impressive spires of purple flowers. 3”(8”) x 8” Sun $code A* (Photo)
SCUTELLARIA - (Lamiaceae) Known commonly as ’skullcaps’, these cosmopolitan herbs provide a number of attractive rock garden species. Their bright flowers and attractive foliage are always a welcome addition.
S. mesostegia - NEW Cushionsof grey-green pinnate foliage and yellow flowers with dark orange centers. 3"(5") x 8" Sun, Part Shade $code A Tian-Shan,Kyrgyzstan (Photo)
S. popovii - NEW Cushions of green, dentate leaves and big
cream and smoky blue flowers.
3"(4") x 8" Sun, Part Sun $code A (Photo)
S. przwalskyi - NEW Low cushions of attractive green pinnate foliage adorned with heads of light yellow and maroon flowers. Tian-Shan,Kyrgyzstan 2"(3") x 8" Sun, Part Shade $code A (Photo)
S. resinosa - An outstanding Great Plains native which forms a miniature shrub of small, gray-green, rounded leaves. In early summer, the upper portions of the stems are covered with blue-purple flowers with two prominent white guidelines on the flaring lower lip. Don’t be without this one! 8” x 8” Sun $code A (Photo)
SEDUM - (Crassulaceae) A large genus of succulent plants with an amazing
variety of shapes and sizes. They perform well as groundcovers, crevice plants
and the larger species make attractive individual specimens. The winter
hardy species are tough and easy to grow and many are quite drought tolerant.
S. sediforme (TURQUOISE TAILS BLUE SEDUM) - A robust and compact heirloom species native to the Mediterranean with succulent blue foliage and creamy-yellow flower. A Plant Select® Introduction for 2013. 3”(6”) x 12” Sun, Xeric $code A* (Photo)
SILENE - (Caryophyllaceae) Summer -blooming plants for the sunny rock garden. The frequently notched or cut five-petaled flowers of white, pink or red are carried on short stems which arise from a fleshy root stalk.
S. lacineata - Rosettes of light-green lanceolate leaves produce 14" flowering stems of starry red-orange flowers all summer. 4"(14") x 6" Sun, Part Shade $code A (Photo)
STOMATIUM - (Aizoiceae) An interesting genus of South African succulent plants that form mats of variously textured and toothed foliage. The narrow- petaled yellow flowers appear in late afternoon and evening. They have proven to be remarkably cold hardy, performing well at least down to Zone 5.
S. agninum - A very attractive foliage plant, forming tight mats of dull-green, roughened, green-dotted, rhomboidal leaves. Light yellow flowers, but seldom flowers. Very hardy. South Africa 1.5” x 5” Sun, Xeric $code A* (Photo)
S. mustillinum - A very hardy South African succulent forming mats of tightly spaced gray-green leaves roughened with many minute dots. Attractive yellow flowers with many narrow petals open in late afternoon. One of the easiest of the South Africans to grow in cold climates. 1” x 6” Sun, Xeric $code A (Photo)
TALINUM- (Portulacaceae) Another Lewisia relative with fleshy cylindrical
leaves growing from a thick stem or root stalk. The bright white, pink or
magenta flowers with golden stamens open in the afternoon and can be caespitose
or carried on tall thin stems. All will thrive in poor, sandy soil in full sun.
T. brevifolium - Compact clumps of sausage-shaped, opalescent leaves covered with large bright pink flowers in summer. One of the best! Utah 1” x 4” Sun $code A (Photo)
(Lamaceae) A large
group of herbs, shrubs and sub shrubs of wide distribution, especially in the
Mediterranean region. Most have attractive, aromatic foliage, attractive
flowers and are generally quite drought tolerant.
T. aroanium - Mats of attractive, silver foliage and large soft lavender flowers. This is the true species and much different from the plant that is commonly in the trade. Greece 2" x 12" $code A* (Photo)
TOWNSENDIA- (Asteraceae) These condensed asters are often called “Easter Daisies” because they flower so early in the spring. Most have large caespitose flowers of white, pink or lavender and form mounds of linear leaves from green to silver. Most require a well drained soil in full sun. No garden should be without a good selection of these wonderful plants.
T. ‘Jeane’s Purple’ - An exceptional plant with dark gray-green foliage and nice purple flowers. Excellent trough plant. 1” x 2” Sun, Part Shade, Trough $code A (Photo)
VERBASCUM – (Scrophulariaceae) A large group of herbs native to Asia and Europe, primarily the Mediterranean. Most are large summer flowering plants that provide excellent vertical accents in gardens large enough to accommodate them.
V. bombyciferum - RENEW The most spectacular of the large Verbascums, forming large, light gray, woolly rosettes and tall woolly flowering spikes of yellow flowers. Very drought tolerant. 10”(48”) x 20” Sun, Xeric $code A (Photo)
VERONICA - (Scrophulariaceae) There are many forms of ‘speedwell’ from small mat-
formers to larger more erect plants that bear flowers on tall stems. Most are
easy to grow and thrive in sunny settings where only the hardiest will grow.
V. liwanensis (Turkish Veronica) - Mats of small, glossy green leaves covered in spring with clusters of showy blue flowers. One of the best ground covering plants available! A Plant Select® Introduction in 1997. 1” x 12” Sun, Part Shade $code A (Photo)
V. oltensis - Another great miniature Veronica from the high mountains of Turkey. The creeping mats of dark-green, pinnate leaves are covered with azure-blue flowers in spring. Relatively slow growing, this plant works well in crevices in the xeric garden. .5” x 12” Sun, Xeric $code A (Photo)
V. x 'P018S' (SNOWMASS® blue-eyed Veronica) - Small, glossy, rounded leaves form a dense mat, covered by a stunning display of small, four-petaled white flowers with a blue eye. It fills in quickly and vigorously, spreading across the garden by stems which root themselves in the soil. A Plant Select® Introduction for 2017 1" x 18" Sun, Part Shade $code A* (Photo)
YUCCA - (Liliaceae) Yuccas are one of the signature plants in the western xeriscape garden. Succulent and evergreen, they provide a strong sculptural accent throughout the seasons with striking foliage and magnificent flowers. There are many species, varying in size from 10' giants to cute 8" miniatures. A surprising number are quite cold hardy.
Y. angustissima - Attractive rosettes of long, narrow leaves lined with filament hairs and tall spikes of cream flowers. Mesa Co., CO 18"(36") x 16" Sun, Xeric $code A* (Photo)
Y. harrimaniae 'San Luis' - This attractive small yucca was found growing at 8000' near San Luis, Colorado. The numerous, narrow light green leaves are generously decorated with white hairs that curl away from the edge of the leaf. Very cute and very hardy. 6"(12") x 6" Sun, Xeric $code A* (Photo