Barbarea, also known as 'wild cress', can be biennials or perennials, with simple or pinnate leaves and small, 4-petalled yellow or white flowers, followed by slender seed-pods
Mostly grown for its lacy silver grey foliage, which will look well in any rockery. The yellow flowers will appear in Spring. Best planted in a sunny spot. Height 15 cm. Spread 20 cm.
An evergreen addition for the rockery, front of border or walls. Single yellow flowers with orange eye against silver-green foliage in early summer. Second flush in late summer. Height 20 cm. Spread 40 cm.
If you want to add a touch of grey to your rockery this is a good choice. The pale yellow flowers have darker yellow centres and appear from Spring. Height 20 cm. Spread 40 cm.
An abundance of small golden-yellow flowers covering a mound of tight green foliage from May to October. Will trail downsides of pots, baskets, etc. Prefers a position in full sun or partial shade. Height 20cm.
