Join the RHS today and support our charitable work
Free personalised gardening advice
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
I have forgotten my password
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
See what events are on near you and browse your bookmarked pages.
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.
the RHS today and get 12 months for the price of 9
Other common names
Aeonium are evergreen succulents often of shrubby habit, with fleshy leaves in terminal rosettes on the shoots, and racemes or panicles of small, star-shaped flowers with numerous narrow petals
'Zwartkop' is a succulent evergreen perennial of open habit, with rosettes of deep blackish-purple leaves, and large panicles of small, starry, bright yellow flowers in early spring
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 West-facing
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow under glass in a loam-based potting compost with added extra grit. Water moderately when in growth, not at all when dormant. Apply a balanced liquid fertiliser 2 or 3 times in the growing season
Propagate by seed sown at 19-24ºC in spring or by cuttings of rosettes kept at 18ºC and barely moist until rooted
Suggested planting locations and garden types
Architectural City & Courtyard Gardens Coastal Mediterranean Climate Plants Sub-tropical
Pruning No pruning required
Pests Can get aphids and mealybugs
Generally disease free
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.