Kerria Japonica is a vigorous, deciduous flowering shrub. It will grow almost anywhere and soon develops into a thicket of tall stems bearing double, yellow flowers from mid to late spring. The beautiful yellow flowers are surrounded by bright green, oval leaves. It prefers partial or full shade as the direct sunlight can bleach the flowers which makes it ideal for illuminating a dark corner or north facing wall. To prune, just thin out the old shoots after flowering.