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
rose mallow 'Cooperi'
Hibiscus can be deciduous or evergreen shrubs, trees, annuals or perennials, with simple or palmately lobed leaves and large, funnel-shaped flowers over a long flowering season
'Cooperi' is a compact evergreen shrub with lance-shaped leaves heavily marbled and blotched with white and sometimes tinged pink; flowers red
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect West-facing or South-facing
Time to ultimate height
Under glass grow in a loam-based potting compost (JI No.2) in bright filtered light, providing moderate humidity and good ventilation. Water freely during the growing season and apply a balanced liquid fertiliser monthly. Water sparingly in winter
Propagate by seed at 13-18°C (55-64°F) in spring or propagate by semi-ripe cuttings in summer
Suggested planting locations and garden types
Patio & Container Plants
Pruning Pruning group 9 little or no regular pruning evergreen shrubs
Pests Aphids, scale insects, mealybugs and glasshouse whitefly may be a problem when grown under glass
Powdery mildew may be a problem
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