Coronilla Citrina

Citrina belongs to Coronilla valentina subspecies glauca, a small shrub from the Mediterranean where it grows on rocky, sun-baked ground. The soft lemon shade of its flowers is gentler than the deeper yellow of the species, and the ferny blue-green leaves keep the plant looking furnished even when it pauses between flushes.

Good drainage matters more than anything, since the roots rot in wet winter soil, so plant it in a warm, free-draining spot or a gritty container. A light trim after the main flowering keeps it bushy and stops it growing leggy. In a container use a loam-based compost with added grit.