How to grow Kerria in the UK
Kerria japonica
Kerria (Kerria japonica) is a flower that grows well in UK gardens. Bombproof. 'Pleniflora' has double pompom yellow flowers. Tolerates shade. This guide covers when and how to sow Kerria, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
Type
Flowers
Difficulty
Easy — good for beginners
Position
partial sun (3–6 hrs)
Sow
spring
Harvest
—
When to sow & grow Kerria
Sowing and harvest window through the year (UK):
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct Plant | Nov | Dec |
Soil, position & care
- Soil
- Most well-drained soils with added organic matter
- Soil pH
- 6.0–7.5
- Position
- Sun or part shade depending on species
- Sowing depth
- Plant so the rootball top sits level with the soil
- Spacing
- Allow for mature spread
- Sowing
- Plant from containers spring or autumn; water in well
- Growing
- Water through the first two summers; mulch annually
- Harvest & upkeep
- Prune to shape after flowering; remove dead/crossing wood
- Watch for
- Generally tough; watch aphids and powdery mildew
Companion planting for Kerria
No specific companion notes for this plant.
Grow Kerria this year
Add Kerria to your free 12-month plan and get watering & sowing reminders — no sign-up needed.
Kerria FAQs
How much sun does Kerria need?
Kerria prefers partial sun (3–6 hrs).
Is Kerria easy to grow?
Easy — good for beginners. Bombproof. 'Pleniflora' has double pompom yellow flowers. Tolerates shade.