Noted for its green winter stems and yellow spring flowers, Kerria japonica 'Pleniflora' (Japanese Kerria) is a vigorous suckering deciduous shrub of great beauty. In spring, it gets covered with bright yellow, pom-pom-like flowers, 2 in. across (5 cm). Borne on slender, arching stems, the blossoms resemble small roses. The foliage of prominently veined, narrow, light green leaves unfolds in the spring. It warms up to yellow in the fall, before falling to the ground, revealing attractive, bright green, winter stems. Highly popular, Kerria japonica 'Pleniflora' is a tough, but graceful flowering shrub that is pleasant in every season.
- Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
- Grows with an open, rounded habit up to 8-10 ft. tall and wide (240-300 cm). May form large thickets as a result of its suckering habit.
- A sun to part shade lover, this plant is best grown in average, medium moisture, well-drained soils. Tolerates full shade, dry soils, and wet soils. Flower color fades in strong sunlight.
- Generally pest and disease free.
- Great for shrub borders, foundation plantings, informal flowering hedge, woodland gardens, naturalized areas.
- Blooms on previous year’s wood, so prune in spring after flowering. Promptly remove unwanted suckers.
- Propagate by semi-hardwood cuttings.
- Native to China and Japan.