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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:
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
Cape primrose 'Polka-Dot Purple'
Streptocarpus can be annuals, perennials or subshrubs, with usually wrinkled, lance-shaped to rounded leaves and clusters of tubular to trumpet-shaped flowers with 5 spreading lobes, often borne throughout the year
'Polka-Dot Purple' is a tender perennial plant with linear, hairy, wrinkled mid-green leaves. Tubular purple flowers with spreading lobes have white edging and speckling and are borne in profusion over a long period
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 East-facing
MoistureMoist but well-drained
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow as a houseplant in loamless potting compost on an east or west windowsill, or grow in a temperate or warm greenhouse in bright filtered light with shade from hot sun. Water sparingly as compost dries in winter and in the growing season water freely allowing compost to dry out between waterings; feed fortnightly with a high-potassium fertiliser
Propagate by division or take leaf cuttings in spring or early summer. Root stem-tip 5-8cm long in spring with bottom heat
Suggested planting locations and garden types
Patio & Container Plants
Pruning No pruning necessary
Pests Glasshouse leafhoppers, mealybugs, thrips, tarsonemid mites and vine weevil larvae may be a problem
Generally disease free but prone to basal rot if overwatered and grey moulds
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.