My kerria has a gazillion blooms on it right now. Click photo to enlarge.
This hardy, fast-growing deciduous shrub, Kerria japonica, is about 8 feet tall right now, with arching bright green stems and sharply serrated leaves. The double-flowered blooms are so heavy that the stems arch to the ground, and I usually prune it back severely every year after the first heavy bloom. This shrub will rebloom often from now right up until frost late this fall. They are very easy to grow, even in rocky soil, and while this one is in full sun, I know that they will also do well in shade.