Make a donation
Join the RHS today and support our charity
Read our latest features
Free access to RHS Gardens
and access to member show days
Reduced prices on RHS Garden courses and workshops
Books & Gifts
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
020 3176 5800
Mon – Fri | 9am – 5pm
Make a donation
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.
When using this search
Search by plant name, key attributes or both to find plant details and a list of
AGM plants have been through a rigorous trial and assessment programme. They are:
the RHS today and get 12 months for the price of 9
Other common names
monkshood monk's hood
Adam and Eve bear's foot common aconite common monk's cowl Cupid's cap dumbledore's delight Elijah's chariot flapdock grandmother's nightcap friar's cap garden monk's hood garden wolf's bane Helen flower Helen's flower helmet flower monk's cap pops soldier's cap Turk's cap Venus's chariot drawn by two doves
Aconitum can be herbaceous perennials or biennials with lobed leaves and racemes or panicles of showy, hooded flowers
A. napellus is an upright tuberous perennial to 1.5m tall, with deeply divided, dark green leaves and tall spires of violet-blue, hooded flowers in mid and late summer
Europe, Asia, America
Toxicity All parts are highly toxic if eaten
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect North-facing or West-facing or East-facing
MoistureMoist but well-drained, Poorly-drained
pHAcid, Alkaline, Neutral
Time to ultimate height
Best grown in cool, moist, fertile in partial shade, but will tolerate most soils and full sun if soil is improved with well-rotted organic matter and mulched
Propagate by division in autumn or late winter to maintain vigour but plants may be slow to re-establish. Use protective gloves when handling any part of the plant
Suggested planting locations and garden types
Flower borders and beds
City & Courtyard Gardens Cottage & Informal Garden
Pruning Cut down plants in autumn
Pests Generally pest free
May suffer from powdery mildews
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.
Like this page on facebook
Click on the Tweet button below to compose your tweet.
Join the RHS today and get 12 months for the price of 9