Stonecrop

Index Rarium 2006/2007

Table of Contents

Annuals for Sun page 1 Perennials for Sun page 2 Woodland page 6 Alpines and Rock page 7 Pots/Garden (overwinter indoors) page 9 Shrubs and Vines page 11 page 12

2006/2007 Rarium Annuals for Sun

Abelmoschus esculentus ‘Burgundy - () Nicotiana paniculata - (Solanaceae) (A) to 4'. . Add drama to the border or (A) to 6'. Peru. Large, almost circular, velvety garden with this red-leaved Okra. Lemon- green with the texture of chamois leather. yellow summer-flowering cup shaped blooms and Emerald green, tubular are borne in panicles six-inch wine-red pods and stems accent this from the axils, starting half-way up the main gorgeous annual. Sun. 3 & T3 stem and culminating in a large, terminal panicle. Amaranthus lividus subsp. lividus Rare. Sun. 4 & T2 (Amaranthaceae) Papaver somniferum ‘Lauren’s Grape’ (A) to 3'. Tropical America. This Love-Lies- (Papaveraceae) Bleeding makes a dramatic accent sporting (A) to 3.5'. A wonderful selection, one of our bronze-purple foliage on compact, bushy with favourite colour forms of the Opium Poppy; dark, deep red stems. Produces short, greenish-purple velvety plum coloured petals with a maroon base. flower spikes in summer. A handsome addition to the Outstanding! Sun. Best sown in situ or 4 & T2, red border. Sun. 3 & T3 cover & keep dark. Asclepias curassavica ‘Red Shades’ Talinum paniculatum ‘Aureum’ (Asclepiadaceae) (Portulacaceae) (TP) to 4'. Blood Flower, Bastard Pecacuanha. A (A) to 2.5'. Jewels-of-Opar. Southeast United States native of tropical America. This choice selection has to Central America. Many slender flower stalks bear cymes of small, pure cinnabar-red flowers, panicles of shiny, red-orange, three-part buds surrounded by hoods of the same vibrant colour. followed by tiny, rose-red, ¼-inch flowers Upright foliage has pointed, elliptic, and opposite containing 15-20 . Jewel-like, ruby-orange, leaves. Blooms in late summer. Sun. 4 & T2 rounded berries that eventually turn black. The Cyclanthera pedata ‘Fat Baby’ - (Cucurbitaceae) bright yellow-green, fleshy leaves make this a (A). Vine to 12'. If you have a bare wall or ugly site “must-have” in the yellow border. Sun. 4 & T3 to cover, this is a good candidate. Native to Central and South America this Peruvian cucumber vine is vigorous yet beautiful. Climbing by tendrils, the lime green, pedately lobed leaves add great textural interest and are joined in late summer by plump, spiny, lime green cucumbers. Delicioso. Sun. 3 & T3 Lopezia racemosa ‘Pretty Rose’- (Onagraceae) (A) to 30". Mosquito Flower. Central America. A quick growing, freely branching plant producing whorls of fascinating, 5-petalled, rose-pink, irregular flowers. The 4 upper petals consist of 2 spoon- shaped petals and 2 thin inner petals that are held together. The fifth petal is narrow and sits below the prominent petalloid stamens. These unusual flowers have a somewhat “mosquito-esque” quality although they have perhaps been best described as a “giraffe poking out its tongue.” Forms bushy mounds of dark green, deeply veined, lanceolate toothed leaves. Blooms all summer until frost. Well-drained soil. Sun. Best sown in situ. 5 & T3 Mirabilis jalapa ‘Limelight’ - (Nyctaginaceae) (A/TP) to 3'. Four O’Clock, Marvel of Peru. Delicate trumpets of shocking pink are accentuated by the astonishing, bright chartreuse foliage. A show-stopper. Sunglasses de rigueur! Sun/partial shade. 4 & T2

1 2006/2007 Rarium Perennials for Sun

Acanthus hungaricus - (Acanthaceae) (P) to 3'. Bear’s Breeches. Balkans. Free-flowering Buglossoides purpureocaerulea - (Boraginaceae) perennial with tall, upright spikes of smoky lavender, (P) to 2'. Blue Gromwell. . Striking gentian- pink lipped flowers emerging from reddish purple, blue flowers in leafy, terminal cymes on ovate . The flowers appear to have a greenish unbranched, arching to procumbent, hairy stems. wash. Forms a large, imposing clump of arching, Blooms in early summer. Excellent for a dry, shady deeply-lobed spiny leaves. Late summer. Persistent site. Well-drained, neutral to alkaline soil. architectural beauty. Well-drained soil. Sun. 3 & T1 4, chill for 4 weeks, then T3 Aconitum lycoctonum subsp. lycoctonum Campanula pyramidalis - (Campanulaceae) (Ranunculaceae) (B/P) to 6'. Chimney Bellflower. Native to Italy (P) to 3'. Alpine Wolfsbane. Northern Europe. and the Adriatic coast. In Graham Stuart Thomas’ Dense, narrow spikes of helmeted, tubular blooms, in words, “one of the most striking of herbaceous a striking shade of lilac-purple, emerge from bushy plants.” Tall spires of starry, open flowers in blue or clumps of deeply lobed, coarsely toothed dark green white appear through July and August. Performs foliage. POISONOUS if ingested! June and early exceptionally well when grown in pots makes a July. Moist, well-drained soil. Sun/partial shade. striking display for the cool . Sun/partial PC for 4 weeks then 3 & T1 shade. 4 & T2 Adenophora takedae var. howozana Caryopteris incana - (Verbenaceae) (Campanulaceae) (P) to 3'. Common Bluebeard. China & . This (P) to 3'. Japan. A very choice variety of the shrubby perennial bears showy clusters of intense Ladybell with open racemes of long, pale violet, violet-blue flowers, in axillary cymes, that envelop campanulate bells. Basal clumps of small rounded the stiff upright stems. In flower, the whole plant is leaves. A long, midsummer bloomer. Well-drained a showy display of bright blue, almost like a soil. Sun. 4 & T1 miniature Ceanothus (California Lilac). Greyish- Amsonia illustris - (Apocynaceae) green, downy, aromatic foliage, too. Can tolerate (P) to 3.5'. Central United States. Handsome shiny, poor soil or dry conditions, but may not be hardy in leathery, lance-shaped leaves with a terminal cluster cold, wet areas. Blooms mid-August to October. of pale, starry blue flowers. Foliage turns bright Well-drained soil. Sun. 3 & T2 yellow in fall. Sun/partial shade. Centaurea bella - (Asteraceae) 3 & PC- 4 weeks & T2 (P) to 12''. Alpine Knapweed. Attractive greenish- Angelica polymorpha - (Apiaceae) grey, lobed foliage. Large thistle-like buds followed (P) to 6'. Exquisite, airy umbels of white flowers and by a rings of starry, rosy pink petals in midsummer. attractive lobed leaves. A choice plant. Sun. 3 & 6 Used as a foil for our early spring bulbs. Sun. Aquilegia vulgaris ‘Nora Barlow’ 3 & T2 (Ranunculaceae) Clematis stans - (Ranunculaceae) (P) to 2.5'. Fully double Columbine of suffused (P) to 6'. Japan. Introduced into in 1860. A red/pink and green arranged in perfect symmetry. superb herbaceous Clematis with a scandent habit, Sun/partial shade. 4 & T2 coarsely toothed, trifoliate leaves, and downy stems. Asclepias purpurascens - (Asclepiadaceae) A profusion of terminal panicles of small, pale (P) to 4'. Purple Milkweed. Northeast and Central lavender-blue, recurved, tubular flowers. Blooms in United States. Large, dark, rosy-purple umbels on a late summer. Well-drained soil. Sun. tough, reliable plant now sadly rarely found in the PC- 2 weeks & 3 & T1 wild. Broadly elliptical, grey-green foliage. An Echinops tjanschanicus - (Asteraceae) important butterfly plant that is a good non-invasive (P) to 5'. A tall, imposing new Globe Thistle from substitute for Common Milkweed. Very showy. and the mountains of Central . Flowers July through August. Moist, well-drained Spherical, silvery blue flowerheads atop sturdy soil. Sun. 4 & T1 stems mature into tennis-ball size prickly seedheads. The bold grey-green, thistle-like foliage forms an impressive clump. Summer blooming. Sun. 4 & T2

2 2006/2007 Rarium Eupatorium coelestinum - (Asteraceae) tectorum (P) to 3'. Mist Flower, Hardy Ageratum. (P) to 12". Japanese Roof Iris. A terrific . Small tufts of misty blue flowers cluster in dense Bright blue flowers with a white beard and brown- panicles on erect stems. Apple green leaves are purple flecking on the falls. Light green, fan-like triangular-ovate and coarsely toothed. A sturdy leaves. It will spread nicely. Blooms in June. Sun. perennial, that performs superbly at the front or mid- 3 & T1 border. Late summer and autumn. Sun. 4 & T2 Liatris microcephala - (Asteraceae) Filipendula camtschatica - (Rosaceae) (P) to 15". Southeast native. Short, grassy tufts of (P) to 7.5'. Kamchatkan Meadowsweet. Japan and fine leaves produce many spikes of small, rosy Eastern . A billow of white to pale pink purple florets in August and September. The blooms flowers in large corymbs appears to float at the top of make lovely cut flowers. A great plant for dry clay this robust, many-stemmed plant. The large, palmate soils. Sun. 4 & T3 leaves are jaggedly divided and often up to one foot Liatris scariosa ‘Alba’ across. An imposing plant that draws attention from (P) to 4'. Northern Blazing Star. Eastern North all our visitors. Blooms June through August. Likes America. Distinctive, button-like buds that open to moist soil in sun. 3 & T2 & ∆ white tufted flowers resembling stiff, dense, bottle- Helianthus mollis - (Asteraceae) brushes. Blooms August to September. Native to (P) to 4'. Ashy Sunflower. Tallgrass Prairie, open barrens and sandy prairies. Needs well-drained Michigan to Ohio. The dense, soft hairs that cover soil and sun. 3 & T2 the stems and clasping, broadly ovate leaves, give the Ligularia vorobievii - (Asteraceae) whole plant an attractive, ashen grey appearance. (P) to 6'. Eastern Siberia and Kamtchatka. Large, The large individual blooms are a rich butercup robust clumps of deeply lobed, leathery, basal leaves yellow, appearing from midsummer into early autum sport tall, stout, purple stems with spikes of bright over open, somewhat wide and spreading clumps. A yellow florets. A tough, undemanding Ligularia, widespread and drought tolerant native for a wild recently new to cultivation. Late summer. Moist garden or an informal planting. Sun. 3 & T3 soil. Sun/partial shade. 4 & T2 Hemerocallis thunbergii - (Hemerocallidaceae) Lithospermum erythrorhizon - (Boraginaceae) (P) to 2.5'. China, Korea and Japan. Branching (P) to 2.5'. Chinese or Red-rooted Gromwell. East scapes of 8 to10 fragrant, lemon yellow, tubular Asia. A bristly or coarsely hairy, upright perennial blooms in July and August: “It is a useful and refined with greyish-green, lanceolate leaves. Terminal species for garden use.” (GST**). Well-drained soil. clusters of numerous, small, five-petalled, white Sun/partial shade. 3 & T3 then it may need 40º for 2- flowers in midsummer. The dried roots produce a 3 months. purple dye and the entire plant has been used since Inula royleana - (Asteraceae) ancient times for burns, cuts, and skin conditions in (P) to 2'. Himalayan Elecampane. and Chinese herbal medicine. Moist, well-drained soil. . The large, shaggy-looking, warm orange- Sun/partial shade. 3 & T2 & ∆ yellow daisies are held singly on stout, upright stems sylvestris f. mauritiana - (Malvaceae) above clumps of broad, slightly hairy, elliptical (P) to 6'. Open, five-petalled, rich purple flowers leaves. July to September. Moist, well-drained soil. with darker, glossy veining, have the appearance of Sun/partial shade. 4 & T2 crushed velvet. Stunning. Summer blooming. Sun. Iris graminea - () 3 & T2 (P) to 16". Plum Scented Iris. Europe. A beardless Paeonia obovata var. alba - (Paeoniaceae) dwarf iris (Spuria group) having slender, grass-like (P) to 2'. A most attractive shrubby perennial with leaves with flower spikes somewhat hidden by the glabrous, broad, dark green leaves that are purplish foliage. Each flower spike bears two individuals when young. The flowers are single white. Inside, flowers, with purple standards, violet falls with the pale green ovaries have prominent red stigmas. violet-veined, yellowish-white hafts. Flowers have a The stamens have red filaments with showy yellow fruity aroma somewhat reminiscent of ripe plums, anthers. Magnificent. Sun/partial shade. 3 & 6A hence the common name. Flowers bloom in June. Moist, well-drained soil. Sun/partial shade. 2B, 3 & T2

3 2006/2007 Rarium Pimpinella major ‘Rosea’ - (Apiaceae) Sphaeralcea remota (syn. Iliamna remota) (P) to 3'. Greater Burnet Saxifrage. A gorgeous pink (Malvaceae) flowered form of this European native. Airy, arching, (P) to 6'. Kankakee Mallow. Illinois. One of the delicate umbels of pale pink are held above a leafy rarest of North American wildflowers, discovered in basal rosette of serrated, fern-like foliage. Summer 1872. Grows only on islands in the Kankakee River blooming. Sun/partial shade. Moist, well-drained in Illinois and in scattered pockets in northern soil. 4 & T2 Indiana, though it happily thrives in cultivation. Tall Polemonium caeruleum ‘Album’ bushy plants with densely hairy stems and large (Polemoniaceae) lobed, maple-like leaves. Spikes of pale rose- (P) to 3'. North and Central Europe. The charming mauve, bowl-shaped, five-petalled, 2½-inch flowers. white form of Jacob’s Ladder. Basal clumps of finely Long bloomer. Well-drained soil. Sun/partial divided fern-like foliage and pure white, silky flowers shade. 1 & 3 & T2 in an open bowl shape with contrasting orange Stachys macrantha - (Lamiaceae) stamens. Moist, well-drained soil. Sun/partial shade. (P) to 2.5'. . One to covet. Wavy-edged, 4 & T2 dark green foliage and spikes of purplish pink, Ratibida pinnata - (Asteraceae) hooded, lipped flowers. Excellent in the border. (P) to 4'. Grey-headed Coneflower. Central North Sun/partial shade. 3 & T2 America. Tall, branched flowers stems are topped by Thermopsis villosa - (Papilionaceae) yellow-rayed blooms resembling badminton (P) to 5'. Carolina Lupine. Southeastern United shuttlecocks. The short, rounded, central cone of States. Tall spikes of bright-yellow, pea-like flowers each long-lasting flower begins a greyish-green and over loose clumps of glaucous, softly downy foliage ripens to chocolate brown. The handsome pinnate with three-part, clover-like elliptical leaflets. leaves adorn only the lower half of the flower stems Blooms in early summer. Well-drained soil. Sun. and form a tidy, bushy clump. A much underused, 1 & 2B then 3 & T2 long-blooming and carefree plant. Sun. Well- Trifolium rubens - (Papilionaceae) drained soil. 4 & T2 (P) to 2'. Europe. One of the largest and showiest of Rudbeckia subtomentosa - (Asteraceae) the clovers. Rings of lanceolate foliage surround the (P) to 6'. Sweet Black-eyed Susan. Tallgrass Prairie. bases of dark pink, “bottle brush” flowerheads. Sun. A host of two-inch, bright yellow-petalled, dark-eyed 2A & 3 & T2 daisies. Bushy clumps of downy, sweet scented, Verbascum atroviolaceum - (Scrophulariaceae) grey-green leaves; the lower leaves being three cleft. (Short-lived P) to 2.5'. South Europe, North Asia. Blooms in late summer. Moist to well-drained soil. A choice, purple flowered strain of the Sun. 3 & T2 otherwise variable V. phoeniceum. A handsome Salvia miltiorhiza - (Lamiaceae) rosette of dark green leaves produce slender, dark (P) to 2'. A gracefully spreading plant from northeast stems with racemes of small, five-petalled, purple China. Upright branching inflorescence of lavender- blooms. Cutting back spent flower spikes can blue flowers, each with a sharply curved, sickle- induce a secondary flowering. Midsummer. shaped upper lip. The glandular, sticky, but Sun/partial shade. 4 & T1 pleasantly scented, distinctive pinnate leaves each Verbesina alternifolia - (Asteraceae) have five leaflets. The thickened, succulent, orange- (P) to 6'. Wingstem. East coast native. Stems red taproot is used extensively in traditional winged, leaves alternate, lanceolate-elliptic to ten medicine. Sun/partial shade. Moist, well-drained inches long with serrated margins. The loose soil. 4 & T2 corymbs of many one-inch, yellow daisies grace the Sisymbrium luteum (syn. Hesperis lutea) garden in late summer. Sun. 4 & T1 (Brassicaceae) Vernonia altissima - (Asteraceae) (P) to 4'. Japan and Korea. Forms a bushy clump of (P) to 8'. Tall Ironweed. Eastern North America. coarsely pilose, pinnate, grey-green foliage that freely Loose, flattened clusters of thistle-like, purple produces dense, elongated racemes of four-petalled, flowers atop towering stems. Large irregulary pale yellow flowers in summer. Good for cutting. toothed and pointed leaves. Not for the faint of Well-drained soil. Sun/partial shade. 4 & T3 heart! Blooms from late summer into autumn. Moist soil. Sun/partial shade. 3 & T2 & ∆

4 2006/2007 Rarium Veronicastrum virginicum var. incarnatum (Scrophulariaceae) (P) to 6'. Bowman’s Root. Northeast America. A beautiful plant adorned with eight-inch long spikes of tiny, soft pink, tubular flowers. At the base of each central spike exists a second whorl of smaller flower spikes. This plant makes an exotic and very architectural statement in the garden. Midsummer. Sun. 4 & T2 Vincetoxicum hirundinaria - (Asclepiadaceae) (P) to 4'. Swallow Wort. Europe. Erect, unbranching stems with greenish, ivory-white tubular flowers in stalked clusters of six to eight appearing in the leaf axils. Forms an upright bushy plant with opposite, glossy, mid-green leaves. A good butterfly plant. Midsummer. Sun. 4 & T1

5 2006/2007 Rarium Woodland

Actaea japonica var. acerina (syn. Cimicifuga Thalictrum actaeifolium - (Ranunculaceae) japonica var. acerina) - (Ranunculaceae) (P) to 4'. Korea. A Barry Yinger introduction. The (P) to 3'. A Japanese native with handsome maple- distinctive foliage of this meadow rue resembles that like foliage that has long, pointed lobes. Slender of Actaea. The mauve-lavender flowers froth on branched spikes of white, tufted flowers, bloom in branched stems all summer long. A beauty. Partial September and October. Moist soil. Sun/partial shade. 3 & T1 & ∆ shade. 3 & 6A Campanula takesimana ‘Alba’ - (Campanulaceae) (P) to 2'. Korea. An outstanding white variety of the beautiful Campanula takesimana. Leaves large in basal rosettes. Branched inflorescence of large, pendant bells on nodding stalks. Flowers are pure white with purple spotting within. Blooms July to September. Sun/partial shade. 4 & T2 Deinanthe bifida - (Hydrangeaceae) (P) to 2'. Japan. Leaves crinkly, coarse-textured, glossy, and deeply lobed at apex. Nodding flowers in terminal clusters. Buds pale mauve opening to five- petalled, waxen white flowers with yellow stamens. This handsome plant is happy in moist woodland soil and light shade. Summer. 4 & T2 Digitalis grandiflora ‘Dwarf Temple Bells’ (Scrophulariaceae) (P) to 18". Primrose yellow spikes of one-inch bells. The fresh green elliptic ribbed leaves are attractive, too. A petite Foxglove, perfect to tuck in the garden. Sun/partial shade. 4 & T2 Disporum lanuginosum - (Convallariaceae) (P) to 2'. Yellow Fairy Bells. East and central United States. Charming woodland native. Many pretty yellow bells hang down from branched, leafy stems in early summer. Plump, orange-red follows. Combine with Astrantia, Polygonatum, Smilacina, or smaller ferns. Moist, leafy soil. Shade/partial shade. 3 & 7 & ∆ Hosta sieboldiana var. elegans - (Hostaceae) (P) to 2.5'. “…most sumptous of all the hostas.” (GST**). Huge, broad glaucous, heavily textured, bluish-green leaves form magnificent, stately clumps that add accent and poise to the woodland garden. The pale lilac-white flowers appear in early to midsummer, though they barely emerge from beneath the foliage. 3 & T3, then it may need 40º for 2-3 months. Kirengeshoma palmata (Koreana Group) (Hydrangeaceae) (P) to 3'. A Korean dignitary. Waxy, soft yellow flowers in late summer, leaves of clear green “…placed oppositely up the arching ebony stem.” (GST**). A “must have.” Prefers partial shade. 5 & T2

6 2006/2007 Rarium Alpines and

Androsace carnea subsp. brigantiaca Dracocephalum argunense - (Lamiaceae) (Primulacaeae) (P) to 18". Dragon’s Head. Japan, China and (P) to 2''. South Western Alps. A desirable and Korea. Short spikes of whorled, brilliant blue, slightly more robust subspecies of A. carnea. Forms hooded flowers emerge from dense clumps of less compact cushions with broader, awl-shaped, dark leathery, linear leaves. Each flower has a prominent green leaves. Umbels of up to six individual, cup- lower white lip spotted blue. A good midsummer shaped, soft pink flowers with tiny yellow eyes, sit bloomer for the larger rock or gravel garden. Well- atop four-inch stems. Sun. 4 & T1 drained soil. Sun/partial shade. 4 & T2 Aquilegia flabellata var. pumila f. rosea Dryas octopetala var. minor - (Rosaceae) (Ranunculaceae) (P) to 8". A continuous display of white blossoms (P) to 8''. Japanese rock garden treasure with pale garnishes this dwarf trailing shrublet with deep pink flowers and grey-green leaves. Sun. 4 & T2 green leaves. Fluffy seedheads decorate the plant Arenaria sajanensis (syn. Minuartia obtusiloba) - for the rest of the season. Sun. 3 & T2 (Caryophyllaceae) Gypsophila bungeana - (Caryophyllaceae) (P) foliage to 3", flowers to 6". Alaska to Oregon. (P) to 8". Siberian Baby’s Breath. Tight cushions of Bright green, mossy mat of fine, needle-like foliage. narrow, bright green foliage produce slender stalks Five-petalled, starry, white flowers with green with open sprays of pale, pinky-white blooms in veining cover the mat. Tough and attractive rock early summer. Well-drained, limey soil. Sun. garden plant. Sun. 4 & T1 4 & T2 Campanula chamissonis - (Campanulaceae) Leontopodium alpinum - (Asteraceae) (P) to 5". Northern Japan to Alaska. Rewarding and easy to grow. Looks delightful spilling out of our (P) to 8". Europe. “Edelweiss, Edelweiss, alpine troughs. Short, creeping tufts of evergreen, every morning you greet me. Small and white, clean narrow, glossy leaves produce many stout, upward and bright, you look happy to meet me…” The facing open bells in varying shades of blue. May to large, distinctive, star-like flowerheads are formed June. Sun. 4 & T2 from tight terminal clusters of small, whitish-yellow, Cyclamen hederifolium ‘Album’ - (Primulaceae) dense florets surrounded by white, petal-like, woolly (P) to 6". The white flowered form of the Ivy-leaved bracts. They are held on short, erect stems above a Cyclamen with silver-marbled foliage and white, small, tufted clump of linear basal leaves. Grows five-petalled, reflexed flowers. Choice and beautiful! well for us outside in an alpine trough. Well-drained Grow on a cool windowsill or outside in the soil. Sun. 4 & T3 woodland. Moist soil. Partial shade. Lychnis viscaria subsp. atropurpurea 3 & T1, cover and keep dark (Caryophyllaceae) Draba cappadocica - (Brassicaceae) (P) to 18". Balkan’s Catchfly. Reddish-purple (P). . We grow this Draba in our Alpine marked leaves, purplish stems, and ten-inch panicles House. A very woolly mound of pale, grey-green of deep purple flowers. . Sun. 4 & T2 rosettes. Clear yellow flowers with elongated Papaver amurense - (Papaveraceae) stamens on one-inch stems. Sun. 3 & T1 (P) to 18". Siberia. Grown from seed originally Draba mollissima collected on an island near Vladivostok, this (P) to 2". Caucasus. Tight, fluffy buns of hairy, delightful short-lived poppy has large cupped, white grey-green foliage producing many short, wiry stalks, flowers with slightly ruffled or scalloped margins. topped with clusters of tiny, canary yellow blooms. A central boss of yellow anthers provides a striking An alpine house gem that needs protection from contrast. The lobed basal leaves are grey-green and winter moisture. Early spring. Sun. 3 & T1 softly hairy. Blooms in June. Self sows. Well- Draba rigida var. imbricata drained soil. Sun. 4 & T2, cover and keep dark (P) to 2". Caucasus. A real treasure, forming the Petrophytum caespitosum - (Rosaceae) tightest of neat, mounded cushions from tiny, pointed, (P) to 4". Rocky Mountains. Rosettes of blue- dark green leaves. Bright, golden-yellow blooms green, spathulate, densely downy leaves. Racemes appear atop short, slender stems in April. Thrives in of white, five-petalled flowers with up to 20 stamens our Alpine House but will also withstand a Zone 5 give a fluffy appearance. Mat-forming, growing to winter. Worth trying in a trough or raised bed. Well- ten inches across in about ten years. Sun. 3 & T2 drained soil. Sun. 3 & T1

7 2006/2007 Rarium Phyteuma scheuchzeri - (Campanulaceae) (P) to 18". Horned Rampion. A native to the high Alps of southern Europe. Spherical, broad heads of deep blue flowers with linear and leafy bracts on slender stems. Blooms early to midsummer. Well- drained soil. Sun. 4 & T2 Platycodon grandiflorus ‘Pink’ (Campanulaceae) (P) to 3'. A beautiful shell pink form of the Balloon Flower, which if kept deadheaded will bloom from midsummer onwards and into the autumn. Sun. 4 & T2 Ramonda myconi ‘Rosea’ - (Gesneriaceae) (P) to 6". Shade lover from the Pyrenees. The classic R. myconi boasts flowers in shades of lilac while this form is pure pink. Deep green, broad, very crinkled leaves form a flat rosette that persists year round. Likes to grow on north-facing vertical cliffs or in a cool crevice. 4 & T1 Rodgersia aesculifolia - (Saxifragaceae) (P) to 3'. A Chinese native plant with palmate leaves and five to nine leaflets that are crinkled with rusty tomentose. Forms handsome and bold colonies. Foamy, cream-coloured blossoms on compressed panicles bloom in summer. Moist soil. Partial shade. 5 & T2 Saxifraga cebennensis - (Saxifragaceae) (TP) to 7". Rare species found only in Cevennes region of southern France, where it adorns the steep limestone gorges with large, domed dark green “mossy” cushions. Tight rosettes of curiously notched leaves smell distinctly of toast and jam. Completely covered in May with rounded, pure white flowers on one-inch stems. Easy to grow, but not fully hardy, needs the shelter of an alpine house against winter damp. Sun. 4 & 7 Saxifraga crustata var. vochinensis (P) to 6". Makes a tight bun of minute foliage, encrusted with white lime deposits. Four-inch stems bear panicles of tiny white flowers, sometimes having purple markings at their base. A “must” for the rock garden. Sun. 4 & 7

8 2006/2007 Rarium Excellent in Pots/Garden (Overwinter Indoors)

Agapanthus ‘Headbourne hybrids’ - (Alliaceae) Dichelostemma ida-maia - (Alliaceae) (TP) to 3'. Lily of the Nile. These hybrids are the Tender to 3'. Firecracker Flower. A native of results of years of British breeding, and known for northern California and Oregon. The exquisite their free-flowering habit, strong, upright stems, and flowers hang above the leaves, one-inch long increased hardiness. Large flowering, spherical tubular, ruby flowers with recurved chartreuse tips, umbels of tubular florets range in colour from pale exposing a cluster of cream stamens. Blooms May sky blue to intense cobalt blue. The glossy, strap- to June. Sun. 3 & 6 like, green foliage is evergreen, forming lush, two- Farfugium japonicum ‘Aureomaculatum’ foot high clumps. Excellent for pot culture in our (Asteraceae) climate. Sun. 3 & T2 (TP) to 12". Leopard Plant. Japan. Glossy, dark Alyogyne huegelii - (Malvaceae) green leaves are marked with canary yellow spots. (TP) to 7'. Satin . Australia. This plant is Small yellow daisies in October and November. clothed in orange-brown hairs with attractive, deeply A lovely foliage accent plant for the warm lobed leaves. Large and exotic, five-inch, silken, conservatory. Partial shade. 4 & T2 lilac-coloured flowers, each with a deep purple spot Francoa sonchifolia - (Saxifragaceae) at the base of the petals, multiple cream stamens and (TP) to 2.5'. Bridal Wreath. Chile. Graceful long- a protruding, star-shaped . Blooms from lasting spires of pale rose-pink flowers. Deeply February onwards. Sun. 3 & T2 lobed, spoon shaped-leaves form attractive Ceratostigma willmottianum - (Plumbaginaceae) evergreen rosettes. Extremely decorative and (TP) to 4'. Chinese Plumbago. West China to Tibet. unusual foliage. Best grown in pots and Deciduous shrub. Leaves lanceolate to obovate. overwintered in a cool greenhouse. Moist, well- Slender angled stems are tinged purple and bristly. drained soil. Summer blooming. Sun/partial shade. Dense terminal heads of five-lobed, pale blue 4 & T1 flowers, white centres, and red-purple corolla tubes. Fritillaria acmopetala - () Foliage turns a beautiful tinted red in autumn. Tender bulb to 14''. Cyprian Missionbells. Eastern Sun/partial shade. 3 & T2 Mediterranean. Pendant, strongly recurved, six- Cneorum tricoccon - (Cneoraceae) petalled, greenish yellow bells. The outer petals Tender shrub to 2'. Spurge Olive. This attractive and remain green while the inner petals have purple- rare evergreen shrub with glossy, dark green leaves maroon blotches on the tips and apex. An elegant blooms in early summer. Clusters of deep, four- addition to our Pit House, where it blooms in early petalled, yellow flowers are followed by red fruit. March. Be patient, a long haul from seed but worth Sun. 4 & 6 & 7 it. 3 & T3, then it may need 40º for 2-3 months. Cyclamen graecum - (Primulaceae) Leonotis menthaefolia - (Lamiaceae) Tender corm to 5". Greece. Light pink flowers with (TP) to 2'. Mint-leaved Lion’s Ear. South . darker pink veins and blotches at the base of the Vibrant, warm orange tubular blooms in whorled petals. Very variable, finely toothed leaves with inflorescences. Small, serrated leaves have a prominent veining of silver-grey colouration. Grows pungent, spicy fragrance, reminiscent of Agastache. well in a cool greenhouse in gritty soil. Blooms A long blooming, compact Lion’s Ear perfect for October through November. Partial shade. 3 & T1, containers. Overwinter in a frost free conservatory. cover and keep dark. Summer through to fall. Sun. 4 & T2 Cyrtanthus mackenii - (Amaryllidaceae) Limonium bellidifolium - (Plumbaginaceae) Tender bulb to 12''. South Africa. Narrow, lance- (TP) to 10". Alpine Sea Lavender. Europe. Matte shaped leaves from which rise stems flushed red at green clumps of congested, linear-spathulate, the base. Atop sits clusters of long, slender, tubular leathery leaves with recurved margins. Sprays of flowers of pale yellow flaring only at the very tips small, pale violet, membranaceous, “everlasting” and displaying darker stamens. Blooms in March and flowers on wiry stems. Summer. Sun. 3 & T2, April. Sun. 3 & 6 cover and keep dark.

9 2006/2007 Rarium Puya mirabilis - (Bromeliaceae) (TP) to 5'. Argentina and Bolivia. Silvery-brown, finely toothed leaves. Delicate, three petalled, chartreuse-green flowers with golden anthers appear intermittently on stalks up to five feet tall. A very distinct looking Puya. Choice. Sun. 4 & T2, keep moist Sinningia sellovii - (Gesneriaceae) (TP) to 2'. Brazil. Long terminal panicles of pendant, swollen tubular flowers from bright red to dark salmon-pink. Several long, arching upright stems arise from a woody, tuberous base. Pairs of soft textured ellipictal, minutely toothed leaves occur along the stems. An unusual Gloxinia relative which makes an attractive houseplant for a sunny window. Blooms late summer to fall. Sun. 4 & T1

10 2006/2007 Rarium Shrubs and Vines

Clethra acuminata - (Clethraceae) Shrub to 12'. Cinnamon Clethra. Appalachia. A rarely seen but choice native shrub or small , grown for its striking exfoliating bark of rich cinnamon-brown, with accents of tan, grey and purple. Terminal racemes of white flowers with a musky-sweet fragrance appear in July and August. Foliage turns yellow in fall. Well-drained soil. Sun/partial shade. 3 & T1 Dioscorea quinqueloba - (Dioscoreaceae) Hardy vine to 15'. Hardy Yam. A Dan Hinkley introduction from Korea. Scrambling, wiry stems with bright green, sharply lobed foliage and axillary racemes of small, white flowers in late summer. Chains of papery, winged fruit follow. A dainty and attractive climber. Ours is planted at the base of a trellis in front of the Loos in the Car Park. Do check it out. Sun/partial shade. 3 & T1 Fontanesia phillyreoides subsp. fortunei (Oleaceae) Hardy Shrub to 10'. Introduced from China by Robert Fortune in 1845. A tough yet graceful, multi- stemmed shrub with pendant three-inch clusters of small, greenish-white, four-petalled flowers in early summer. Glossy green, lanceolate, willow-like leaves. Sun. PC- 4 weeks, 3 & T1 Sinocalycanthus chinensis - (Calycanthaceae) Hardy Shrub to 12'. Eastern China. A rare and choice deciduous shrub closely related to Carolina Allspice. Large, waxy, white flowers with yellow stamens adorn the branches in early summer. Broad leaves are glossy green and sharply pointed. Moist, well-drained soil. Partial shade. PC- 4 weeks, 3 & 7 Tripterygium regelii - (Celastraceae) Hardy vine to 30'. Regel’s Threewingnut. China, Manchuria and Korea. A sprawling, scandent, shrubby plant with small, white, green tinged flowers in large terminal panicles up to eight inches long. Produces green, three winged like the samaras of elm . Dark green, broadly rounded, alternate leaves. Notable as ’s favourite vine. Sun. PC- 4 weeks, 3 & T1 Vitex negundo var. heterophylla - (Verbenaceae) Hardy shrub to 10'. East Asia. Cut-Leaf Chaste Tree. This choice shrub has a loosely branched, open airy habit with palmately compound, finely dissected, greyish-green foliage. Small, 5 lobed, lavender, fragrant flowers in terminal panicles, appear in July and August. Creates a good architectural backdrop for the dry, sunny border. Well-drained soil. Sun. PC- 4 weeks, 3 & T1

11 2006/2007 Rarium Bulbs

Lilium canadense - (Liliaceae) Hardy bulb to 5'. Canada or Meadow Lily. Quebec to Virginia. Umbels of 10 to 12 pendulous, trumpet- shaped bells of rich, buttery yellow. The slightly reflexed are densely spotted maroon. Clusters of whorled leaves appear along the stems. An extremely charming early summer bloomer. Sun/partial shade. Moist, acid woodsy soil. 3 & T3, then 40º for 2-3 months. Lilium martagon var. album Hardy bulb to 5'. A beautiful white form of the fabulous turk’s cap lily. Stunning against a dark background. An early summer bloomer. Sun/partial shade. 3 & T3, then 40º for 2-3 months. Lilium martagon var. cattaniae Hardy bulb to 5'. Balkans. A striking burgundy flowered form of the fabulous Turk’s Cap Lily. Unspotted maroon blooms hang from numerous branches arranged in a chandelier fashion. Long, cool green filaments display rust-coloured anthers. Clusters of whorled leaves appear along the stems. An early summer bloomer. Sun/partial shade. 3 & T3, then 40º for 2-3 months. litardierei - (Hyacinthaceae) Hardy Bulb to 8". Meadow Squill. Balkans. In cultivation since 1827 yet still uncommon, this lovely squill produces dense, conical racemes of pale blue- violet flowers in late spring. Quite delightful and deserves to be grown more. Late May to Early June. Well-drained soil. Sun. 3 & T1 Zephyranthes primulina - (Amaryllidaceae) Tender bulb to 10". Yellow Rain Lily. Eastern Mexico. A hard-to-find species with lovely, pale, primrose yellow flowers. On the outside of each petal, a light peachy-rose blush adds to the beauty. The dark green, strap-like foliage has a distinctive purple tint to the base. Grow Zephyranthes on a cool windowsill in well-drained soil. Sun. 3 & T2

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