Shrub

Kerria japonica ‘Pleniflora’

Double-Flowered Japanese Rose
Award Winner Low Maintenance Hardiness H5

Double pompon-like golden-yellow flowers cover the arching green stems of Kerria japonica ‘Pleniflora’ in spring. This vigorous, shade-tolerant shrub is excellent for informal borders and difficult corners, but it spreads gradually by suckers and benefits from regular thinning after flowering.

SKU: KERR-6-Y

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Flowering Months
Jan J
Feb F
Mar M
Apr A
May M
Jun J
Jul J
Aug A
Sep S
Oct O
Nov N
Dec D
Size
Max Height
2.5 m — 4.0 m
Max Spread
1.5 m — 2.5 m
Growth Habit
Produces new shoots from base or roots, spreading outward.
Planting Position
Sunlight Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.
Full Sun Part Shade
Aspect Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
North South East West
Exposure Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
Exposed / Sheltered
Hardiness Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
(−15 to −10 °C) Cold-hardy
Ideal Soil Conditions
Soil Type Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
Chalk Clay Loam Sand
Soil Moisture Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.
Moist but permeable / Free draining
Soil pH Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Acid Alkaline Neutral
Plant Uses & Merits
Merits
  • Generally pest-free
  • Low Maintenance
  • RHS | Award Of Garden Merit

Kerria japonica ‘Pleniflora’ Description

Kerria japonica ‘Pleniflora’ is a vigorous deciduous shrub with bright green arching stems and fully double, rounded golden-yellow flowers. The main display appears in spring, with occasional flowers often continuing later into summer. Mature plants generally reach around 2 metres high and can form a broad colony through suckering growth. It thrives in partial shade but also grows in sun where the soil remains moist, making it useful for woodland edges, north-facing boundaries and informal mixed borders. It is fully hardy and dependable in Ireland. After flowering, cut some of the oldest stems back to ground level to maintain a fresh framework and remove unwanted suckers where spread needs controlling. Avoid shearing the whole shrub into a tight shape, which spoils its natural arching habit.

Planting Guide for Kerria japonica ‘Pleniflora’

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Care guide for Kerria japonica ‘Pleniflora’

Items must be returned within 30 days after receiving your order. Items must be returned in the same condition in which they were received, be unworn/unused, have any tags still attached, and include all the original packaging.

Uses for Kerria japonica ‘Pleniflora’ & Garden Styles it suits

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