Kerria japonica 'Pleniflora'
Double Japanese Kerria

Also known as: Kerria japonica 'Flora Pleno'

Kerria japonica ′Pleniflora′ - Overall Shrub in Spring

Family:

Rosaceae (Rose Family) 210

Genus:

Kerria (Japanese Rose Easter Rose Kerria Rose, Japanese Rose, Easter) 3

Plant Type:

Shrub 462

Growth Forms:

Suckering / Colonizing 31

Hardiness:

USDA Zone 4 490

Deciduous / Evergreen:

Deciduous 792

Flower Notes:

Yellow (Double, pom-pom like, bright yellow flowers (1-2" dia.) for 2-3 weeks in spring and sporadically to fall; best show in partial shade)

Foliage Notes:

Green (Bright green summer foliage); Yellow (Fall)

Ultimate Height:

6-8 feet

Ultimate Spread:

7-9 feet

Light Requirements:

Soil Notes:

Prefers well-drained soils but widely adaptable

Range:

Cultivated origin

Diagnostic Characteristics:

Leaves (1.5-4" long and half as wide) are alternate, ovate-lanceolate, acuminate, double serrate, bright green. Imbricate small buds are vari-colored. Stems are slender, glossy green, and form a zig-zag pattern.

Special Characteristics:

Additional Information

'Pleniflora' is a very popular cultivar of Japanese Kerria with its long lasting, bright yellow, double flowers that are nearly spherical, reminiscent of "pom-poms". Fairly adaptable to soils and microclimates, including considerable shade; best out of extremely sunny exposures. Occasionally winter-injured in the north, but otherwise relatively trouble-free. Suckers and spreads slowly. Needs occasional pruning to remove dead branches and renewal pruning to maintain form.