Kerria japonica 'Pleniflora'
Japanese Rose
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Japanese Rose (Kerria japonica 'Pleniflora') - Description
K. japonica is native to China and Japan. It produces slender yellowish green stems in the winter with green, somewhat triangular 2 to 4 inch long toothed leaves. It also bears small, yellow rose-like flowers in the spring. 'Pleniflora' is the most commonly grown kerria, and bears double yellow blooms that appear throughout the summer and sometimes into early fall.
Japanese Rose (Kerria japonica 'Pleniflora') - Blooming
Blooms March-May what looks like small, single yellow roses. Although the plant can survive in full sun, the flowers will bleach and is not recommended.
Japanese Rose (Kerria japonica 'Pleniflora') - Growth
The Kerria will grow to be about 8 ft. tall and 5-6 ft. wide. Works well as a shrub border or as a stand alone plant in a woodland garden.
Japanese Rose (Kerria japonica 'Pleniflora') - Planting
Plant the Kerria in a place where it will have lots of room. Propagate with greenwood cuttings in summer, or divide in fall.
Japanese Rose (Kerria japonica 'Pleniflora') - Pest
Some problems are coral spot, leaf and twig blight, canker, and fireblight.
Japanese Rose (Kerria japonica 'Pleniflora') - Interesting facts
Kerria is endemic to the woodlands of China and Japan, and are named after William Kerr, who introduced the sole species to the west.
Japanese Rose (Kerria japonica 'Pleniflora') - Soil and irrigation
The Kerria requires little water once it is established. Does best with well-draining soil that is fertile.
