The classic cottage garden flower grows in almost any soil in partial shade but will grow in full sun.
Sown in-situ in late spring. Alternatively, sow in seed trays in late spring and plant out to final position in late summer.
Underplanting of Roses and Shrubs Flower borders and beds Coastal Wildflower meadow City & Courtyard Gardens Cottage & Informal Garden
Outdoor sowing in late spring to early summer in a weed-free prepared bed. Thin the seedlings out when large enough to handle to about 15cm (6in) apart.
You can thin again and transplant the seedlings in the autumn for flowering the following year.
Or sow indoors from March to June on the surface of compost in a seed tray. Do not cover with compost as the seeds need light to germinate.
Prick out when large enough to handle and climatise gradually outdoors before planting out after the risk of frost has passed.