Also known as Jew's mallow or quite simply as Kerria, this is a popular spring flowering shrub. It will grow almost anywhere, and soon develop into a thicket of tall graceful stems, but it is best kept out of direct sunlight to avoid bleaching the flowers. In this form these are fully double, like golden pompons, ideal for illuminating a dark corner or north-facing wall. The Royal Horticultural Society has given it its prestigious Award of Garden Merit. Supplied in approx 2-3 litre containers.