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.
© RHS 1987
the RHS today and get 12 months for the price of 9
Other common names
drumstick primula tooth-leaved primrose
Primula are herbaceous or semi-evergreen perennials, forming a basal rosette of simple leaves, with salver-shaped or bell-shaped flowers which may be solitary or carried in an umbel or in whorls on an erect stem
P. denticulata is an herbaceous perennial to 30cm, with obovate leaves mealy beneath. Flowers to 18mm in width, pale or deep purple with a yellow eye, borne in dense rounded heads on the erect stems
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 or East-facing or North-facing
Exposure Exposed or Sheltered
MoisturePoorly-drained, Moist but well-drained, Well-drained
Time to ultimate height
Grow in deep moist or moist but well-drained neutral to acid, humus-rich soil in full sun or partial shade
Propagate by division in early spring or propagate by seed sown from autumn to spring
Suggested planting locations and garden types
Flower borders and beds
Cottage & Informal Garden Rock Garden
Pruning Cut back after flowering
Pests May be attacked by aphids, vine weevil, slugs, leaf and bud eelworms and glasshouse red spider mite
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.