Cortusa matthioli

Native to the moist woodlands and mountain meadows of north-eastern Europe, alpine bells, Cortusa matthioli, is a pretty dwarf relative of the primula. It bears clumps of scallop-edged leaves from which delicate stems of purple bell-like flowers appear in early spring.

Alpine bells can be grown from seed: sow in winter or early spring on the surface of moist compost and cover with a very thin layer of sand. Seedlings may take months to appear – if at first they don't germinate, pop the seed tray in the fridge for a few weeks to help break the dormancy. Transplant into individual pots when seedlings are large enough to handle, and then to their final positions after all risk of frost has passed.

For best results grow in moist but well-drained soil with plenty of organic matter, in shade. If grown in the right conditions, plants should self-seed readily.