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AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
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Other common names giant Himalayan lily giant lily
Synonyms Lilium giganteum
Family Liliaceae
Genus Cardiocrinum are large bulbous perennials with heart-shaped leaves and trumpet-shaped flowers resembling lilies, folowed by erect oblong seed capsules. Monocarpic, the bulbs dying after flowering
Details C. giganteum is a perennial to 2m in height, with leaves to 30cm across, and terminal racemes of fragrant, trumpet-shaped white flowers marked with purple within the mouth
Plant range SC Asia
Foliage Deciduous
Habit Columnar/Upright
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H5
Partial Shade
Aspect North-facing or West-facing or South-facing or East-facing
Exposure Sheltered
Chalk
Clay
Loam
Sand
MoistureMoist but well-drained
SoilChalk, Clay, Loam, Sand
pHAcid, Alkaline, Neutral
Ultimate height 1.5-2.5 metres
Ultimate spread 0.1-0.5 metres
Time to ultimate height 5-10 years
Cultivation Grow in moist but well-drained, deep, humus-rich, fertile soil. Intolerant of waterlogging and may need some protection from frosts in colder areas. Mulch and feed regularly. Intolerant of hot or dry sites. Dried seed heads can be used in flower arrangements
Propagation Propagate by seed, sowing in deep pans with bottom heat, or from offsets after flowering. May take up to 7 years to flower from seed; offsets may take 4-5 years to flower
Suggested planting locations and garden types Underplanting of Roses and Shrubs Architectural Cottage & Informal Garden
Pruning No pruning required
Pests May be damaged by slugs
Diseases May be affected by a virus
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
giant Himalayan lily
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