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Easy little evergreen spreader for some shade with grassy leaves and starry pale pink flowers from rich pink buds from late spring. A Lily of the valley relative from the Far East. Height 15cm.
Rheum 'Great Bere' (new)
A giant form of uncertain parentage, forming massive plants with huge foliage and soaring vertical inflorescences up to nearly 4m tall! A huge statement plant for soil that doesn't dry too much in sun or semi-shade. Hardy.
Rheum acuminatum ex PAB 2487
A very ornamental, rare, Himalayan alpine rhubarb. Panicles of rosy flowers on bright red stems to 1m high over deeply veined heart shaped leaves, soft red beneath. Seemingly tough and tolerant, and not that needy of excess moisture. These are seed raised from a plant originally collected in Bhutan.
Rheum alexandrae KGB 767 (new)
The finest form of this fabulous species introduced thus far, with relatively sizable thick textured foliage and splendid inflorescences composed of larger than usually seen palest yellow down turned bracts, that protect the flowers from the harshness of its native environs. Some forms have rather pathetic inflorescences; these are the opposite. A good doer in moist soil.
Rheum palmatum 'Red Herald' (new)
A large ornamental rhubarb with giant, jaggedly lobed foliage that emerges red and turns green with red undersides. Strikingly red flowers in a branched head to 2m in May-June. For any reasonable soil, not too dry.
Rhodohypoxis baurii 'Mars'
A vivid pink clone. A South African alpine plant in nature enjoying a moist summer in well drained gritty, peaty soil and full sun. Grassy leaves and flowers in June/July. Ideal in a trough, pot or well drained rock garden, with a slate or similar over the dormant plant in winter to keep off excess moisture. Hardy.
Bright pink flowers, slightly smaller than others but very floriferous. Grassy leaves and flowers in June/July. Seems to be tolerant of more winter moisture than others, but still advisable to plant in a trough or similar very well drained position. A South African alpine plant in nature enjoying a moist summer in well drained gritty, peaty soil and full sun.
Taller and more upright than other species. A South African alpine plant enjoying a moist summer in well drained gritty, peaty soil and full sun. Grassy leaves and vivid deep-pink flowers in mid to late summer. Ideal in a trough, pot or well drained rock garden, with a slate or similar over the dormant plant in winter to keep off excess moisture. Hardy.
A rare species with large pinnate foliage and unusual one sided inflorescences of greenish-white flowers, up to 1m high in summer. Moist soil in semi-shade. Thought by some to be tender, but bone hardy with me, even in pots at -10c.
Rodgersia pinnata 'Superba'
Bold foliage, strongly red-tinted. Red-pink flowers from red stems. Fabulous. 90cm. Moist soil, sun or part shade.
Rodgersia pinnata White form
Big bold pinnate foliage with fluffy white flowers reaching above in summer, up to 1m+. For moist soil, never too dry, in semi-shade.
Big bold beautifully shaped leaves, heavily bronze tinted on expansion, turning dark green and then to good autumnal tints. White flowers in fluffy heads above the foliage in summer. Height 1m+. Moist-ish soil in part shade.
Rohdea japonica 'Talbot Manor' (new)
An asparagus relative, though you wouldn't readily know it, with a tropical look. Broad evergreen leathery leaves, irregularly striped and margined with cream. Flowers are fascinating but irrelevant and borne at the very base of the plant. Best in shade where it will be very drought tolerant.
Romneya coulteri 'White Cloud'
A selected form of Matilija poppy, producing extra large silky flowers, the size, shape and colour of a fried egg, but infinitely more beautiful. Flowering from Jul to Oct over bluey foliage on stems to 2.5m, but most often to about 1.5m, spreading at the root to form a colony. Sometimes tricky to establish, so give it a warm spot in full sun in good open soil.
A fine species with an exceptionally long flowering period. Rich purple orchid-like flowers on leafy stems to about 40cm in late summer and autumn. Sun or part shade, not overly wet in winter.
Roscoea purpurea 'Red Gurkha'
True bright red flowers on a short stout plant with green foliage and deep red pseudostems. A most desirable form emerging from the ground only in about mid June and flowering as late as August and September. Best in humus rich soil in light shade, never too dry. Found in central Nepal in 1992.
The Cutleaf Coneflower from eastern N. America produces deeply dissected slightly grey-green foliage and flowering stems to 2m tall. The late summer and autumn flowers are composed of a yellow-green central cone surrounded by lemon yellow rays. The young leaves were traditionally gathered and eaten after gentle cooking as greens. For retentive soil in sun.
An arresting species with large, late, yellow flowers on tall, erect stems to 1.8m, over broad, brassica-like pale blue-green foliage. Sunny site.
Rudbeckia subtomentosa 'Henry Eilers'
A tall late flowering yellow daisy from the prairies, reaching 1.5m on strong stems. This unique form was discovered in Illinois and selected for its unusual ray florets (petals) which are tube-like and very slim, with open ends. The foliage has a subtle vanilla fragrance. Great with other late flowering perennials and grasses. For sun or semi-shade.
A splendid non-invasive dock from upland areas of Europe and W. Asia. In the best forms, like this one, the foliage is very bold, very broad and handsome and a joy in itself. Upright red tinted inflorescences reach about 75cm in late spring. Forms a gently spreading patch for sun or semi-shade in any ordinary soil.
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