Biennials sold as bedding plants.
Because of their early flowering, wallflowers are very suitable for combination with spring-flowering bulbs.
As the name implies, wallflowers are lime-lovers.
Do not plant them in damp, acid soil.
Wallflowers are sown in late spring and early summer in a shady-bed. Seedlings are spaced out and are transferred to their permanent in early autumn or, if necessary, after the winter. Protect the plants from severe frost.
Cheiranthus cheiri: Height 25-40 cm, the flowering season depends on the time of, but is usually mid spring to early summer. There are single and double varieties in a large range of colours; consult a good seed catalogue.