Helianthemum ‘Belgravia Rose’ Zn6a (-10º to -5ºF) Cistaceae
Sunroses are tough, drought tolerant, and incredibly dependable in our climate. This selection with sage green leaves is reliably evergreen and has lovely vivid rose colored flowers from late April to early June. Full sun and well drained soil.
Cut back hard after blooming has ended. Makes a neat groundcover 8" high and about 3' wide. Excellent plant for steep hillsides. Good with Sedum 'Bertrand Anderson'.
Helianthemum ‘Cheviot’ Zn6a (-10º to -5ºF) Cistaceae
An exceptional selection of Sunrose, 'Cheviot' covers itself in 1" apricot orange flowers from April to July. Excellent evergreen groundcover, silver leaves are a great backdrop to the flower color. Full sun and well drained soil that is slightly enriched. To 6" tall and each plant forming a mat to 3' wide in 3 years. After blooming cut back hard, up to 2/3rd of the plant. Drought and heat tolerant. Great plant for our climate.
Helianthemum ‘Henfield Brilliant’ Zn6a (-10º to -5ºF) Cistaceae
An exemplary evergray low spreading plant that covers itself in April and May with brilliant dark orange flowers, each with a golden center. Full sun and well drained to average soil. Striking with the dark purple flowers of Lavendula x stoechas, Spanish Lavender. Tough and very tolerant of drought. To 8" tall and spreading to 2' wide. Cut back hard after blooming ends. One of the best of all sunroses. Occasional summer water.
Helianthemum ‘Stoplight’ Zn6a (-10º to -5ºF) Cistaceae
Sunroses are one of the best adapted perennials for this climate. Silver evergreen foliage looks good year round and they are very tolerant of neglect. 'Stoplight' has beautiful tomato red flowers that appear for weeks in late April to early June. To 6" tall and spreading to form a mat 20" wide. Cut back hard after blooming to with in 3" of the ground. Full sun well drained soil- occasional water in summer, though not essential.
Helianthemum ‘The Bride’ Zn6a (-10º to -5ºF) Cistaceae
Sunroses are a great spring blooming perennial and then they earn their keep for the rest of the year by being reliable evergreen groundcovers. This selection has lovely white flowers that play well against the silver/gray leaves. Blooms late April to early June. To 6" tall and forming a mat 30" across. Cut back hard after flowering ends. Full sun and well drained soil. Extremely tolerant of drought. Occasional summer water.
Helichrysum tianshanicum Zn5a (-20º to -15ºF) Asteraceae
SUPERB silver leaved hardy perennial/shrub native to dry cold areas of northern China that thrives through our wet winters. To 18" tall and forming a rounded shrub this evergreen perennial takes hot sun and drought in stride. Well drained soil with little to average summer irrigation. Small gold button-like flowers on long stems in late summer. Good in w/ roses. Aromatic. Cold hardy. Cut back in early spring. Great plant.
Helleborus foetidus ‘Wester Flisk’ Zn7a (0º to 5ºF) Ranunculaceae
'Westerflisk' is a selected strain of Helleborus foetidus with pewter colored leaves with dark red veining on the stems and intense celedon green flowers edged in red in late winter through spring. It is also slightly more compact. Part shade to high overhead shade with fertile well drained soil is best. Evergreen. Supplemental water in summer is also good. 2' x 2'. Great with Luzula sylvatica aurea and Cyclamen coum.
Helleborus x hybridus Zn5a (0º to 5ºF) Ranunculaceae
Our open pollinated seed strain that has a great range in flower color from deep raspberry reds to even near yellows. Evergreen winter blooming perennial for part shade. Palmate leathery leaves are best removed before blooming to reveal the late January through March flowers. Well drained soil that is light and airy is best. A natural companion plant for
Snowdrops and Cardamine trifolia. Part shade or full sun with protection from afternoon
heat.
Helleborus x sternii Zn6a (-10º to -5ºF) Ranunculaceae
A refined Hellebore hybrid with pewtery leaves on red stems. To 18" tall and forming an evergreen clump twice as wide. In late winter green flowers emerge often with a tint of pink or gray. Full sun to part shade in good, but well drained soil. Combines nicely with Euphorbia x martinii. Flowers are effective from early
February into April. Occasional water in summer. Carefree when established.
Helleborus x sternii ‘Pewter Leaf Strain’ Zn6a (-10º to 5ºF) Ranunculaceae
A seed strain of the excellent evergreen hybrid Hellebore x sternii. Deeply incised leaves shaded with pewter on top of stems that glow madder red. Some leaves are more serrated than others. Part shade to full sun in rich soil with regular summer water. Celadon green flowers appear in late winter and hold until mid-spring. Good as a cutflower. Occasional summer water. To 20" tall and as wide.
Heuchera ‘Cinnabar Silver’ PPAF Zn4a (-30º to -25ºF) Saxafragaceae
Gorgeous silver leaves underlain with burgundy are a wonderful foliar accent to this new Heuchera. Profuse spikes of brick red flowers on wiry stems to 18" tall in May and June. Beautiful along a partly shaded border or even a container. In rich, well drained soil that is somewhat moist in summer. Evergreen, so it works well in year round color schemes. Excellent in a border in front of Hydrangeas and especially with blue leaved Hosta.
Heuchera ‘Lime Rickey’ PP# 16210 Zn4a (-30º to -25ºF) Saxafragaceae
Crinkley parsley-like leaves in vivid chartreuse set this Heuchera apart as both beautiful and distinct. Spikes of airy white flowers add to the overall effect in early summer. Wonderful foliage plant for contrast. Does best in airy light soils that do not remain soggy or dry out completely. Combine in part shade with Acaena a. ‘Blue Haze’. Great evergreen container plant. Avoid direct sun.
Heuchera ‘Obsidian’ PP#14836 Zn4a (-30º to -25ºF) Saxafragaceae
The very darkest leaved Heuchera so far and sure to become a classic. Scalloped shiny leaves of deepest burgundy to near black make Obsidian an apt name. To 10" tall and 16" wide with early summer flowers of airy white to 24" tall. Mysterious perennial at its best near silver leaved Japanese Painted Ferns or blue Hosta. Full sun to part shade in rich soil with regular summer water. Great container plant. Evergreen.
Heuchera ‘Peach Flambe’ PP#17195 Zn4a (-30º to -25ºF) Saxafragaceae
Large smooth leaves that have amazing tones of orange and rust on top with an underside of rich plum. Excellent as a container plant with unobtrusive but delicate white flowers in early summer. To 1' tall and as wide for part shade to full sun ( but not reflected heat) and regular water in rich soil. One of the finest of the new Heucheras. Excellent with Hosta 'Fire Island'. Maroon winter color. Ever lovely.
x Heucherella ‘Stoplight’ PP#16835 Zn4a (-30º to -25ºF) Saxafragaceae
A bold and elegant perennial from Terra Nova Nurseries that is sure to become a classic. Opulent chartreuse leaves with a central stain of madder red that follows each vein. Spires of soft white starry flowers in May-June. Part shade to shade in rich, amended soil with regular summer water. Amazing combined with Hakenochloa m. 'All Gold' for a combination of tone on tone colors with remarkable texture. Irresistable. 12" tall by 20 " wide, semi-evergeen.
Hosta ‘Blue Mouse Ears’ Zn4a (-30º to -25ºF) Lilaceae
One of the very best dwarf Hostas, 'Blue Mouse Ears' forms multiple rosettes of steel blue leaves with a great thick substance. Only 6" tall at most, the clump will slowly spread to an area about 14" across. Small scapes of lavender flowers appear in midsummer and are proportionate to the clump. Very lovely in part shade to shade in rich soil that is not boggy in winter. Protect from slugs, especially when leaves emerge in early spring
Hosta ‘Fire Island’ Zn4a (-30º to -25ºF) Lilaceae
A medium sized Hosta that sizzles in the garden. New leaves emerge bright gold and fade to chartreuse during the summer AND red petioles (stems) with small dots that rise up the stem and move out onto the leaf. Deep lavender flowers in August. To 20" tall and wide. Rich soil and regular water in summer, no standing water in winter. Part shade, dappled shade. Amazing with Heuchera 'Peach Flambe'. Bait for slugs in spring.
Hosta ‘June’ Zn4a (-30º to -25ºF) Lilaceae
Few Hostas are as lovely as 'June'. An instant classic the moment it was released it has become known as one of the great foliage perennials of all time. Substantial gold leaves drip with deep green and gray blue. A large clump is stunning. Part shade to shade in rich ammended soil. Takes FULL sun in rich soil with irrigation. Lavender flowers to 2' in summer. Foliage to 1' tall. Deciduous, regular water and bait for slugs. June is worth it.
Hosta ‘Mississippi Delta’ Zn4a (-30º to -25ºF) Lilaceae
A big bold Hosta that can eventually reach 5 ' wide. Large blue/gray leaves are held horizontally and each one with multiple lined indentions like a braided river delta. Established plants will display a 6' spike of white, branched flowers in July/Aug. Part shade to shade in rich soil with ample water. Wonderful planted infront of Fatsia japonica 'Variegata' for a large lush woodland look. Bait for slugs in spring.
Hosta ‘Thunderbolt’ PP#11232 Zn4a (-30º to -25ºF) Lilaceae
Wonderful Hosta. Large, rubbery blue leaves with a dramatic flash down the center that appears gold and changes to cream over the summer. To 2' tall and at least as wide over time. EXCELLENT foliage plant with substantial and distinct clean look. Great with Golden Japanese Forest Grass to echo the colors. One of our favorites. Best in rich, moist soil. Part shade to shade-not at its best in full sun. Protect from slugs. Large Hosta- give it room.
Impatiens omeiana Zn7a (0º to 5ºF) Balsaminaceae
Palmate leaves that are strikingly veined in silver make this hardy impatiens a great spreading groudcover for a woodland garden. Leaves are up to 6” across and are deciduous in winter.Part shade in leafy moist soil is best. In late summer light yellow/orange helmet shaped flowers are charming. Protect from slugs in early spring. To 10” tall and 3’ wide in time.
Iris cristata Zn5a (-20º to -15ºF) Iridaceae
Precious, precious easy to grow woodland Iris that is native to the mid-atlantic coastal plain. Beautiful, violet blue flowers with falls centered in white and orange appear on spreading fan-shaped plants in late April and May. Part shade and woodland conditions suit it best. Moist humus enriched soil with occasional summer water. Lovely under shrubs and planted among Acorus graminius 'Ogon'. Easy.
Iris japonica Zn7b (5º to 10ºF) Iridaceae
A tough and beautiful evergreen Iris that is very vigorous. In midspring sprays of
delicately ruffled, orchid-like white flowers stippled in purple and orange. A vigorous spreader that is great in dry shade and away from other perennials that it might overwhelm. Forms impressive colonies quickly.To 2' tall as wide as you let it. Part shade to shade. Not bothered by deer. Some water in summer. Dry organic fertilizer every other year.
Kniphofia ‘Candlelight’ PP#12343 Zn6a (-10º to -5ºF) Asphodelaceae
A season long, continuous display of light yellow flowers makes this Kniphofia one of the new great perennials. Grassy foliage to 2' tall forming a spreading clump as wide. Continuous spikes of flowers are produced up to 30" tall. Remove spent flower spikes for rapid rebloom. Rich soil and full sun. Lovely with deep blue Salvia 'Nuevo Leon' and Penstemon 'Margarita BOP'. Regular summer water. Semi-deciduous in winter.
Kniphofia caulescens Zn6a (-10º to -5ºF) Asphodelaceae
An astonishing Torch lily or Red Hot Poker that actually forms a trunk! Large blue-green leaves radiate out from a short trunk that eventually grows to about 1' tall. In mid-summer large spikes of apricot flowers fade to light yellow on spikes that reach to 4' tall. Flowers contrast with the blue foliage for an excellent effect. Full sun and well drained soil. Cut back spent foliage in early spring. Occasional summer water. Good on hillsides.
Kniphofia hirsuta Zn5b (-15º to -10ºF) Asphodelaceae
Adorable little Knifophia that forms rosettes of evergreen strappy blue/green leaves. In mid to late summer 1’ tall spikes of flowers that start at the top as vivid orange before they slowly morph to vivid chartreuse green. Slowly forms patches of multiple rosettes in
about 3 years. Not a bad idea to plant more than one to get a better effect sooner. One of our favorite red hot pokers. Appreciates regular irrigation in the summer, established plants tolerate some drought.
Kniphofia northae Zn6b (-5º to 0ºF) Asphodelaceae
By far the very best Kniphofia for foliage, this huge rosette forming perennial has
swirling evergreen leaves that are up to 4" across. Dramatic, torchlike apricot and light yellow flowers appear in late spring. Full sun and rich, but WELL DRAINED soil. Occasional water in summer. An amazing presence in a garden with the effect of a large Aloe. To 4' across, give it room, it will take it. Leaves freeze to a tight rosette below 15∞F, resprouts in spring.
Kniphofia ritualis Zn5b (-15º to -10ºF) Asphodelaceae
A colorful and easy to grow species of Kniphofia with dramatic flowers. 2' spikes of flowers emerge in mid to late summer with vivid orange/red and acid green flowers. Large swirling rosettes of leaves. Semi-deciduous. Full sun in rich well drained soil with regular water in summer. Flowers again if you remove the first spent spikes. Clumps spread slowly. Excellent with blue flowered Salvias. South Africa.
Kniphofia typhoides Zn6a (-10º to -5ºF) Asphodelaceae
Intriguing and beautiful Kniphofia species with blue/green leaves shaped like a cattail that eventually forms large clumps. In late summer and fall 30" tall spikes of dense cocoa brown flower spikes that smell of coconut oil, or suntan lotion. Spectacular offbeat cutflower. Winter deciduous. Full sun in average to rich soil with regular water in summer. Wonderful fall blooming perennial that draws hummingbirds. Warm location.
Helianthemum ‘Cheviot’
Perennials return year after year and are the organic heart of the garden. They represent the most intelligent type of landscaping. So many are available today that we focus on the best and most unusual.
Perennials
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