Jeffersonia dubia
twin leaf
J. dubia is a deciduous perennial to 20cm tall, forming a compact clump of kidney-shaped, shallowly 2-lobed leaves, with pale violet-blue flowers 2.5cm across opening with the new leaves in early spring
Buy this plant
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
1–2 yearsUltimate spread
0–0.1 metreGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Blue | Green | ||
|---|---|---|---|---|
| Summer | ||||
| Autumn | ||||
| Winter |
Position
- Full shade
- Partial shade
Aspect
North–facing or East–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Berberidaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Genus
Jeffersonia are small, clump-forming perennials with2-lobed, kidney-shaped leaves and bowl-shaped white or pale violet flowers in spring
- Name status
Correct
- Plant range
- NE Asia
How to grow
Cultivation
Grow in moist, humus-rich, preferably neutral to acid soil in partial or full shade; top dress with leaf mould or other humus-rich material in autumn. Dislikes disturbance and may take a year or two to settle after transplanting; established plants tolerate drought
Propagation
Propagate by seed in containers in an open frame as soon as ripe or divide established plants in spring
Suggested planting locations and garden types
- Rock garden
- Flower borders and beds
Pruning
No pruning required
Pests
Diseases
Generally disease-free
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.