Particularly Drought-Tolerant

 

Epimedium alpinum

Epimedium alpinum   (Cc. 920002)

This drought tolerant spreading species from southern Europe sports very small flowers held below and among medium-sized leaflets. Inner-sepals are red behind creamy-yellow petals/spurs. 12" tall. The leaflets flaunt a complementary thin, mascara-like red edge while the plant is in bloom. Spreads 8-12" a year, forming an open groundcover. Semi-evergreen.   $8

Epimedium alpinum 'Shrimp Girl'

E. alpinum  ‘Shrimp Girl’  (Cc. 930006)

The clone ‘Shrimp Girl’ is shorter in height (6-8”) than E. alpinum with shorter rhizomes; spreading only 4-5” a year, but its dense growth habit and thick foliage make it far supe­rior at crowding out weeds. Tiny blooms appear below the leaves and are not usually noticeable unless the plant is elevated on a hillside. A short, neat, ground covering Epimedium with a "cool" name. Semi-evergreen.  $8

Epimedium koreanum 'Harold Epstein'

Epimedium koreanum  ‘Harold Epstein’  (Cc. 930004)

A very cold hardy clone with huge flowers for an Epimedium— gor­geous and butter yellow. Named in honor of Harold Epstein by famed plantsman Jerry Flintoff, its enormous leaflets can reach over 6” long and 4-1/2" wide. Spreads 6-8" a year. It usually takes 2-3 years to establish itself and be­come most impressive. The flowers emerge before the leaflets unfurl in early spring. E. koreanum is notorious for just putting up one set of leaves per node each season. If the leaf suffers  damage, the rhizome will remain dormant until the following year. ‘Harold’ is a great bold-textured vigorous ground cover for large areas where it can spread unimpeded. It is especially useful in combination with early spring bulbs for sequential bloom. After bloom the expanding leaves serve as camouflage for the dying bulb foliage. 15" tall. $18 

Epimedium macrosepalum

E. macrosepalum  (Several clones/Cc. numbers)


A species from the S.E. coastal region of Russia. The flower of this species has enormous inner sepals that are a heavenly shade of lavender-pink. Unlike most inner sepals that follow the curve of the spurs, these petaloid structures reflex back like huge rounded wings, arching above the down curving spurs, like an insect taking flight. Both the cup and the tips of the spurs fade to white. Low growing, ground hugging foliage 4-8” high is composed of small to medium-sized rounded, heart-shaped leaflets that turn deep maroon over winter. Papery smooth and evergreen. Its low, running habit makes this species a good groundcover. Rhizomes grow 6-8+”a year.   $18

Epimedium perralderianum

E. perralderianum (Sev. clones/Cc. numbers)

Native to the moist remnants of oak and cedar forest in northeast Algeria, this drought tolerant species forms a handsome evergreen ground cover. Dwarfer than E. pinnatum ssp. colchicum, it differs in that its heart-shaped, veined leaflets are in sets of three, with spiny edges that give textural interest. Flowers are much the same-- small, lemon-yellow, and rounded with diminutive mahogany spurs that bend upwards. Leaflets are patterned with bronze in spring and fall. Rhizomes grow 2-4". This clone is courtesy of the late David Barker, who held one of the national UK collections of Epimediums.   $18

Epimedium pinnatum ssp. colchicum

Epimedium pinnatum ssp. colchicum

(Sev. clones/Cc. numbers)

Native to the mountainous areas of Georgia along the eastern coast of the Black Sea, this Epimedium is very drought tolerant. A workhorse groundcover for dry areas. Clusters of small, bright yellow flowers are produced on leafless stems above newly emerging leaves. Showy bright yellow inner-sepals back small petals that form a yellow cup. Short reddish spurs are held straight out against the inner-sepals. Spreads 6-8” a year creating a dense growth of large, rounded, shiny, deep evergreen leaflets on stems 8-10”.  $8

Epimedium pinnatum ssp colchicum L321

Epimedium pinnatum ssp. colchicum L321   (Cc. 950222)

This Roy Lancaster collection was obtained from Robin White of Blackthorn Nursery. The dark evergreen leaflets are smaller and narrower than those of the other clones we grow, with a decorative wavy edge, making it a much more open plant, but one with a great deal of textural character. A favorite of mine. Otherwise, it is similar to the other clones.  Drought tolerant. $10

Epimedium pinnatum ssp. colchicum 'Thunderbolt'

Epimedium pinnatum ssp. colchicum ‘Thunderbolt’ (Cc. 890003)

***2000 Cobblewood Introduction***


 Collected in the former USSR Province of Georgia in 1973 by Skip March of the U.S. National Arboretum. We named this clone in cooperation with the Arboretum. Cool autumn temps turn the medium-sized, semi-glossy, evergreen leaflets dark black/purple or a rich red mahogany, depending on the light exposure. An attractive “thunderbolt” pattern of green main veins overlays the fall color. Flowers have showy bright yellow inner-sepals. 10”. Rhizomes grow 6-8” a year.  Drought tolerant. $15

Epimedium pinnatum ssp. pinnatum

E. pinnatum ssp. pinnatum  (Cc. 980084)  


This eastern subspecies of E. pinnatum is uncommon in cultivation. Native to the Caspian forests of northern Iran, David Barker shared this with us when we visited his garden in Chelmsford, Essex, UK in 1998. Sprays of small, bright lemon-yellow flowers with tiny brown spurs erupt in early spring to 7” beyond the newly emerging foliage. While the flowers are different from ssp. colchicum in having spurs that are half the length, gardeners will notice the difference in plant habit. Generally taller with 9 medium-sized evergreen leaflets per leaf vs. 3-5. Flowers 3/4” in diameter. Leaflets are a clear spring green with a slight rose flush. Spreads by 8” rhizomes. Light red fall color.  $12

Epimedium platypetalum

Epimedium platypetalum    (Several clones/Cc. numbers)

Native to China, 12 to 15” stems carry 10 to 20 dainty yellow bells suspended like tiny shuttlecocks, backed by tiny, white or reddish inner-sepals. The delicate blooms are held aloft on upright stems rising above small, rounded leaflets. Spreads by 8-12” long rhizomes, forming a low groundcover. Small, rounded, and slightly flecked new spring leaflets have few spines. While evergreen, the leaves flatten in the winter and are not very ornamental during that season. A particularly drought tolerant species.   $22 

Epimedium pubigerum Cc. 920029

E. pubigerum     (Cc. 920029)

Attractive small, round, heart-shaped leaflets with a matte surface, a wavy edge and a bronze overlay in spring, form on stems 8 to 10" tall. Full sprays of very small, pink-flushed, creamy-white flowers hover well above the leaves at 16-20". Semi-evergreen.  $12

Epimedium pubigerum Cc. 950215

Epimedium pubigerum   (Cc. 950215)

This clone bears creamy-white flow­ers-- almost like tiny molars, creating a baby's breath effect-- held high above especially rounded, glossy dark green leaflets. Foliage 8-10" tall with flowers stems held at 16-20" tall. Drought tolerant. Semi-evergreen.  Not available in 2017.

Epimedium pubigerum Cc. 000996

E. pubigerum     (Cc. 000996) 

A unique running version of this normally clump-forming and especially drought tolerant species. Handsome corrugate bright green medium-sized leaflets form an attractive, open ground cover. Abundant flower sprays reminiscent of baby's breath cover the foliage extending to 16". Each small flower has cupped white sepals that sport a smear of rose color along their lengthwise edge. A slow spreader with 2-4" rhizomes. Foliage reaches 8". Semi-evergreen Not available in 2017.

 

Epimedium sempervirens 'Candy Hearts'

Epimedium sempervirens  ‘Candy Hearts’

(Cc. 920038)

***2001 Cobblewood Introduction***


Exquisite spring foliage emerges an opalescent rosy-pink tone that slowly recedes over a month’s time to a rose border, before turning solid green. The showy large silvery lavender-pink flowers have wide inner-sepals and look like iridescent pearls against the colorful spring foliage. 9” tall. Semi-evergreen with medium-sized leaflets.   $20

Epimedium x 'Flame Thrower'

Epimedium x ‘Flame Thrower’ (Cc 990619)

***2009 Cobblewood Introduction***


Cheerful cherry red and creamy yellow flowers dance above the foliage of this hybrid from Darrell Probst. The inner sepals have decorative undulations to their shape, resembling flames licking upwards from the top of the flower. This cross between deciduous and evergreen parent plants gives this hybrid both vigorous growth and deep green, spiny leaflets of good substance. Very drought tolerant.   $25

Epimedium x 'Pretty In Pink'

Epimedium x ‘Pretty in Pink’  (Cc. 130001)

This 2012 Plant Delights Nursery introduction by Tony Avent is a vigorous E. grandiflorum hybrid with exceptional foliage. Small clusters of large, showy flowers with pink spurs and a raspberry cup are held just above the leaves during the mid-late Epimedium bloom season.

The new spring growth is patterned with subdued maroon flecks, eventually hardening off as handsome, glossy, medium-sized green leaflets, followed by a flush of blush pink second growth foliage. Tony describes the leaflets as "tardily deciduous"-- what I call "semi-evergreen". One of the best for thick, lustrous summer foliage. To 12".  $25

Epimedium x perralchicum

Epimedium perralchicum

(Several clones/Cc. numbers)

Long confused in the U.S. as its parent, E. perralderianum, (the other being E. pinnatum ssp. colchicum). The floral differences are minor, but the hybrid is more vigorous and hardier, to USDA Zone 4. Large, evergreen leaflets have slightly wavy margins. Like its parents, the leafless stems have small rich yellow flowers reminiscent of Verbascum. Spreads by 4-6” long rhizomes. Leaves form a thick mass to 15”. An excellent drought tolerant groundcover.   $8

E. x perralchicum 'Frohnleiten'

E. perralchicum   ‘Fröhnleiten’  (Cc. 890005)

A drought-tolerant ground cover Epimedium prized for its colorful spring foliage, a gorgeous combination of reddish-bronze over the leaflet with an intricate pattern of green veins. Small, bright yellow flowers. Spreads 4-6” a year with medium/large evergreen leaflets. 12” tall.  Blends superbly with yellow-flowered late blooming Narcissus. One of the more common varieties available in the American market, and for good reason. $10

Epimedium x perralchicum 'Wisley'

Epimedium x perralchicum   ‘Wisley’  (Cc. 960041) 

A spontaneous hybrid discovered at RHS- Wisley, England. Small, bright ca­nary-yellow flowers are produced just above the newly emerging spring foliage to 12”. Medium to large leaflets are dark green with lighter veins and a delicate ruffled edge.  Spreading. A great, drought tolerant ground cover. $10 

Epimedium x versicolor 'Strawberry Blush'

E. versicolor   ‘Strawberry Blush’ (Cc. 990615)

***2004 Cobblewood Introduction***


Wide, antique pink sepals brushed with rose streaks back a cheerful lemon-yellow cup, which deepens to rose purple short, curved spurs. The soft pastel flowers blend beautifully with the pinkish maroon mottled new spring leaflets. Darkest at the edges, the color fades to green at the center of small/medium-sized leaflets, before turning entirely green. Handsome, medium green, glossy summer/fall foliage. Particularly drought tolerant. Semi-evergreen. Flowers/foliage to 10”.   $15

 

Iris koreana

Iris koreana  


During his last stop in S. Korea in 1997, Darrell crawled up a nearly dry stream bed beneath dense scrub for this treasure. It produces glowing yellow 1-1/2” flowers, each with a narrow brown halo surrounding the signal. Flowers are held on 6” stems above the expanding leaves. Semi-evergreen to 12”. Best with 3-4 hours of sun here, it grows in bright shade and perhaps even full sun. Drought tolerant. Produces a substantial, grassy-leaved clump after several years. Not available in 2017.

Iris koreana 'Firefly Shuffle'

Iris koreana ‘Firefly Shuffle’  

***2010 Cobblewood Introduction***


A very floriferous clone of this Asian species iris, and a good grower. Mid May is heralded with the annual explosion of sunny, bright lemon yellow blossoms covering the plant. Great for the rock garden.  Best in bright shade or a few hours of direct sun, it forms a grassy-leaved clump that slowly spreads into a “patch”. Semi-evergreen$18

Iris odaesanensis

Iris odaesanensis

Pristine white flowers with a yellow signal edged in a thin, brown halo. Two flowers, each nearly 2” in diameter, are borne atop 8” stems in late May. Semi-evergreen leaves expand after bloom to reach 12” long, 1/2” wide, forming dense clumps of arching foliage. Drought tolerant. Prefers a little more sun than Epimediums. $12

Iris odaesanensis 'Ice Whisper'

Iris odaesanensis  ‘Ice Whisper’ 

***2014 Cobblewood Introduction***


A beautiful icy blue-lavender flowered variant of this normally white-flowered species iris. Darrell collected a pale lavender-flowered clone in the wild in Korea, and grew seed from that plant. This is his deeper lavender flowered selection from that seedling batch.  $22

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