Grow seedlings on under glass until all risk of frost has passed and they can then either be planted outside into a well-prepared bed, or used to fill decorative pots and hanging baskets for the patio (9cm plants don’t need potting on but require initial frost protection).

Pinching out the growing tips will encourage them to become bushier, and feeding with a high-potash fertiliser at regular intervals throughout the summer will promote even more flowers to form.

When planting this bedding wallflower, incorporate well-rotted compost into the planting hole. If planting in late winter or early spring, there may be some old foliage from the previous year's growth, this will soon be discarded and replaced with fresh new growth.

Provide cloche protection where frosts are very severe or prolonged. Wallflowers like good drainage, so take care not to over-water. When in flower, regular deadheading will prolong the display even further.