© Dorling Kindersley Ltd

Introducing...

Specialist campanulas

This group of campanulas includes compact or spreading plants that, in the wild, grow among rocks. It included a few that cannot survive frost and are often grown in containers under cover in a cold frame or cold greehouse.

Looks

These plants are mainly low-growing and compact, forming tufts or clumps, sometimes with flexible, trailing stems. The bell-like flowers appear in spring and summer, often covering the plant. They come in shades of pale blue, mauve, pink and white.

Likes

Specialist campanulas need free-draining soil in sun. Many do well in shallow pots filled with gritty compost and are kept in a well ventilated, unheated greenhouse over winter.

Dislikes

They cannot cope with wet soil, especially in winter, as this can cause the roots to rot. A shady position leads to uneven growth and flowering can be poor.

Did you know?

Campanula isophylla is unsuitable for growing outdoors, but can be kept in a conservatory or greenhouse and brought into the house when in flower.

Growing guide

Specialist campanula we recommend

Buy campanulas from RHSplants.co.uk

Every purchase supports the work of the RHS

Useful advice

Rock gardens: plants

Rock gardens: plants

Scree gardening

Scree gardening

Other plants you may like

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.