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Biennial/Perennial Varieties Page 2 of 7 containing Biennial/Perennial Varieties 56 Varieties Listed in Total 1 2 3 4 5 6 7 
Cardamine pennsylvanica We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. A polymorphic species... [MORE] Carlina acaulis Succeeds in a sunny position in ordinary garden soil[111]. Prefers a neutral to alkaline soil[138, 238]. Prefers a poor soil[200]. Established plants are drought tolerant[190].
Plants are hardy to about -20°c[... [MORE] Chaenactis douglasii Requires a deep well-drained gritty or gravelly soil, preferably of low fertility and a sunny position[207].
Grows well in the rock garden[207].
The plant is a biennial or short-lived perennial[207].... [MORE] Chondrilla juncea We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in many parts of this country. Judging by its native... [MORE] Cichorium spinosum Succeeds in any moderately fertile well-drained soil[200]. Prefers a medium to light sandy or gravelly soil that is rich in humus[1]. Prefers a sunny position[200] but with light shade in the summer to prevent ... [MORE] Cirsium japonicum An easily grown plant, succeeding in any ordinary garden soil in a sunny position[200].
Cultivated for cut flowers in Japan[58]. There are some named forms selected for their ornamental value[200].... [MORE] Cochlearia anglica Prefers a cool shady position. Grows well on acid or calcareous soils but it avoids shady positions in the wild. Prefers a sandy or gritty well-drained soil[200].
Hybridizes with C. officinalis[17].... [MORE] Cochlearia officinalis Prefers a cool shady position[27]. Grows wild on acid or calcareous soils, but it avoids shady positions. Prefers a sandy or gritty well-drained soil[200].
At one time this plant was commonly eaten, especially... [MORE]
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Page 2 of 7 containing Biennial/Perennial Varieties 56 Varieties Listed in Total
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