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The giant mother of all Dahlia, reaching up to about 4m in suitable conditions before flowering, though the large, pale-pink, single flowers are produced very late, in early winter, so frost free early winter conditions are needed to see them. Very hardy if mulched well, though in my experience doesn't really need it. Huge foliage and thick stems a joy in themselves. This clone has flowered outside near here.
Dahlia merckii compact
A dwarf version of this fairly hardy species with a different growth habit. There are many more shoots and they're less straggly. Simple, pinky-lilac flowers on stems to 75cm in late summer. Easy to grow in well drained soil in sun. Mulch over in winter to be safe, though very tough.
Derived from plants we found in Mexico, this very uncommon species reaches about 2m on thick black-purple stems, with large green foliage topped by fairly large purple pink single flowers in autumn.
Datisca cannabina from Tajikistan (new)
An excellent plant for striking yet graceful structural form in green. Clumps of arching 2m stems clad with pinnate leaves and terminating in semi-pendulous terminal green inflorescences. In this unusual form the arching inflorescences have extra wispy leafy bracts throughout. A very graceful foliage plant for a reasonably sunny site and drought tolerant.
Diascia fetcaniensis (new)
Growing at up to 3000m in the Drakensberg Mts of South Africa, this is a truly hardy species for permanent planting. Multiple spires of mid-pink flowers over a long period from mid to late summer. Good for border edges or containers etc. For full sun to part shade and any reasonably well drained soil. Height 40cm.
Dierama 'Blackbird' seedlings
A very special Wand Flower with many very richly coloured bell flowers, often very dark, though also in rich pink-purple, on arching scapes to 1.5m. 'Blackbird' is not a clone; it has always been raised from seed and therefore variable. Sun, not too dry in summer.
Dierama 'Coral Bells'
Warm-pink flowers in summer with silvery bracts. Height 1m+. The late Michael Wickenden's selection. Sun, moist in summer.
A species Wand flower with pendulous rich pink flowers on stems 50-150cm high. Sun, not too dry in summer.
Digitalis ferruginea 'Gigantea'
Self-seeding short lived evergreen perennial foxglove with particularly beautiful, tall, straight, very narrow spikes of densely set, hooded, apricot-yellow flowers, brown netted in their throats. Dark green leaves are glossy and narrow. A particularly large form up to 1.8m high, flowering over a very long period in summer. Sun or part shade.
A tall Asian perennial teasel with rounded heads of white to yellowish flowers on leafy stems to 2m, very different from our native. An important plant in Tradition Chinese herbal medicine and also recently tested for use against Alzheimer's disease. A collection from Guizhou, SW China, flowering in summer.
Dipsacus dipsacoides (new)
From Uzbekistan, this teasel has particularly ornamental flower heads in rich lavender-blue. Very different and with smaller spherical heads than our native, but a vastly better colour. Height approx. 1 to 1.5m, flowering in summer. For sun and well drained soil.
Short stout Solomon's Seal look-alike with broad evergreen foliage. Little creamy bells with dark mouths and a fine scent hang from the 30cm stems in June. Spreads slowly to form ground covering patches in leafy soil in shade.
Disporopsis taiwanensis (new)
A relatively recent introduction to cultivation, from the cold mountains of Taiwan, this evergreen Polygonatum relative has relatively broad foliage held alternately along its stems. Along those same stems in June are strung multiple little white bell-like flowers, purple yellow inside. For shade in humusy soil.
An evergreen Solomon's Seal relative reaching only 20cm high and spreading slowly to form a patch of arching stems bearing undulating dark green leaves. The little scented bell-like flowers are white with purple speckles and a yellow interior and are produced along the stems in May/June. Violet berries replace the flowers and are seen through winter. Hardy, for a woodsy spot in well drained humus soil.
Disporum aff. longistylum NJM 11.011
A collection from Guizhou, SW China at about 2000m asl. This formed a well branched perennial to about 1m. Flowers not seen as yet, but probably pale greenish yellow. For semi-shade and humusy soil.
Disporum cantoniense 'Blueberry Bere'
A unique new colour form we found at altitude in Manipur, NE India, bearing plenty of lilac bell-like flowers on vigorous upright stems in late spring, followed by black berries. For humus rich soil in semi-shade
Disporum longistylum 'Night Heron' (new)
Magnificent dark-chocolate new growth extends on equally dark almost bamboo-like stems with contrasting pale sheaths. These branch and bear creamy-green bells followed by black fruit. Leaves turn to dark olive-green with maturity. To 1.8m tall, for semi-shade. A splendid and most desirable Dan Hinkley intro from China.
Disporum longistylum 'Night Heron' seedlings
As 'Night Heron' itself only produces a small amount of propagating material each year why not have a seedling, which comes generally true anyway... with a bit of rogueing here and there? Magnificent dark-chocolate new growth extends on almost bamboo-like stems with contrasting sheaths. These branch and bear creamy green bells followed by black fruit. To 1.8m, for semi-shade.
Disporum lutescens (new)
Pale yellow dangling bells from the tips of 25cm tall Solomon's Seal-like leafy stems in May-June. A very hardy Japanese woodlander for semi to full shade and humusy soil.
A Solomon's Seal relative from China and Japan, making a spreading clump of strong upright leafy stems to about 50cm, arching at their tips, where the clusters of starry greenish-white flowers dangle in April/May. Best in leafy soil with shade. Hardy.
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