Aethionema

Aethionema, commonly known as stonecress, is a compact alpine perennial that suits the driest, brightest parts of the garden. Low cushions of narrow, often blue-green foliage are followed by clusters of small pink, mauve or white flowers, creating a neat layer of colour close to the ground. Its restrained habit makes Aethionema plants especially useful in rock gardens, gravel planting, troughs and raised beds, where smaller plants need enough character to hold their place without overwhelming the space.

Sharp drainage is the key to growing stonecress well in the UK. A sunny position and gritty, free-draining soil suit these plants best, particularly through winter when prolonged wet can be more damaging than cold. Once established, many varieties cope well with dry conditions and need little intervention, making them a natural companion for other alpine plants, compact sedums and low-growing Mediterranean species.

The appeal of Aethionema is in the detail. Fresh spring growth settles into a low mound, flowers gather above it and the foliage continues to give structure after the main display has passed. Tucked between stones or repeated along a gravel edge, stonecress plants bring a measured rhythm to smaller planting spaces and make good use of places where richer, moisture-loving perennials would struggle.