Join the RHS today and support our charitable work
Keep track of your plants with reminders & care tips – all to help you grow successfully
For the latest on RHS Shows in 2021, read more
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Free entry to RHS members at selected times »
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Help us achieve our goals
Join the RHS today and support our charity
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:
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.
Join the RHS today and get 12 months for the price of 9
Other common names
opium poppy balewort
carnation poppy dream plant fairy's charms flower of Venus Joan silver pin John's silver pin marble flower maw seed moonflower opium peony poppy sweet slumber white poppy
Papaver can be annuals, biennials or herbaceous perennials with simple or pinnately divided leaves and short-lived, saucer-shaped, 4-petalled flowers which may be solitary or in racemes
P. somniferum is a smooth, glaucous annual, to 120cm, with heart-shaped leaves, the upper ones clasping the stem and with toothed, wavy margins. The wide-open flowers have large petals surrounding a green, urn-shaped capsule with a flat cap, and many dark purple or yellow stamens. The capsule enlarges after flowering and makes a decorative cut flower fresh or dried. Colour is variable, often white or mauve, but garden selections may be in many shades of red, pink, purple and near black. Double and laciniate forms are widely available
Toxicity Harmful if eaten. Wear gloves and other protective equipment when handling
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or East-facing or West-facing
Exposure Exposed or Sheltered
MoistureMoist but well-drained, Well-drained
SoilChalk, Loam, Sand
pHAcid, Alkaline, Neutral
Time to ultimate height
Easy to grow in any well-drained or moist but well-drained soil in full sun or light shade. Short-lived flowers have distinctive ""pepper-pot"" seed pods
Propagate by seed in situ during spring
Suggested planting locations and garden types
Drought Resistant Flower borders and beds
Gravel Garden Prairie Planting Wildflower meadow Cottage & Informal Garden
Pruning No pruning required but deadhead if seed is not required
Pests Generally trouble free but may be attacked by aphids
May be affected by downy mildew in wet conditions and fungal wilts
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
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.