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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.
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:
© RHS 1965
the RHS today and get 12 months for the price of 9
Other common names
African milk barrel
Euphorbia can be annuals, perennials, shrubs or succulents, with milky sap and small flowers held within cupped, often colourful bracts
E. horrida is a cactus-like shrub with erect, ridged stems bearing long spines and solitary green flowers
S Africa (Cape)
Toxicity All parts are highly toxic by ingestion
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 North-facing
pHNeutral, Alkaline, Acid
Time to ultimate height
Grow under glass in a loam-based potting compost with sharp sand in full light with good ventilation. Water sparingly when in growth keep dry in winter. In the growing season feed a low nitrogen liquid fertiliser 2 or 3 times
Propagate by seed sown at 15 - 18ºC in early spring or stem in spring or early summer. Separate offsets in spring
Suggested planting locations and garden types
Patio & Container Plants
Pruning No pruning required
Pests May be attacked by mealybugs
Generally disease free
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Join the RHS today and get 12 months for the price of 9