Join the RHS today and support our charity
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Help us achieve our goals
Make a donation
I have forgotten my password
Keep me signed in
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 1999
the RHS today and get 12 months for the price of 9
Other common names
nettle-leaved bellflower blue devil bellflower
blue devils blue foxglove Coventry bellflower cover-keys gloves of Mary great throatwort great throat root throatwort
Campanula may be annuals, herbaceous or evergreen perennials, with bell or star-shaped, often blue, flowers in late spring or summer
C. trachelium is a robust perennial with nettle-like, deeply toothed leaves and erect, leafy stems bearing a raceme of bell-shaped lavender-blue flowers 3cm long in summer
Eur., N Afr. & Sib.
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 North-facing or West-facing or East-facing
Exposure Exposed or Sheltered
MoistureWell-drained, Moist but well-drained
SoilSand, Clay, Chalk, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
Any fertile, well-drained soil in sun or part shade. The flower colour is best in shade
Propagate by seed in containers in a cold frame in spring. Divide in spring or autumn. Take stem-tip cuttings from new growth after flowering
Suggested planting locations and garden types
Flower borders and beds Underplanting of Roses and Shrubs
Cottage & Informal Garden Wildflower meadow
Pruning Cut back after flowering to prevent seeding and to encourage a second flush of flower
Pests Vulnerable to slugs and snails
Powdery mildew and rust may be problematic
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.
Join the RHS today and get 12 months for the price of 9