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We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
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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 American pokeweed American nightshade
cancer jalap chon grass coakum cokan crimson-berry plant crowberry dyer's grapes garget inkberry pigeon berry poke pokeberry poke root poke salad pokeweed red ink plant red weed scoke skoke Virginian poke Virginian pokeweed
Synonyms Phytolacca decandra
Family Phytolaccaceae
Genus Phytolacca are herbaceous perennials, shrubs or trees, with simple leaves, small flowers in erect or drooping spike-like racemes are followed by glossy, fleshy fruits
Details P. americana is an upright herbaceous perennial with oval or lance-shaped mid-green leaves, tinged with purple in autumn. White-pink flowers appear in racemes from mid-summer to early autumn, followed by crimson-black berries in autumn
Plant range USA
Foliage Deciduous
Habit Columnar/Upright
Toxicity Contact with the sap may irritate skin, all parts may cause a severe reaction if ingested, and the fruit is highly toxic
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H7
Full Sun
Partial Shade
Aspect South-facing or West-facing or East-facing
Exposure Sheltered
Clay
Loam
MoistureMoist but well-drained
SoilClay, Loam
pHAcid, Alkaline, Neutral
Ultimate height 2.5-4 metres
Ultimate spread 1-1.5 metres
Time to ultimate height 2-5 years
Cultivation Grow in any fertile moist soil in sun or partial shade
Propagation Propagate by seed in early spring
Suggested planting locations and garden types Cottage & Informal Garden
Pruning No pruning required
Pests Generally pest-free
Diseases May be prone to virus diseases
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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.