Photo: Hectonichus, CC BY-SA 3.0 · source
Shrub · Thymelaeaceae
Paperbush
Edgeworthia chrysantha
In other languages: Edgeworthia (Nederlands) · Edgeworthia (Français)
Paperbush is a graceful shrub from the mountain woods of China, related to daphne. At the end of winter, silvery, hairy buds hang from the bare, supple branches and open into round clusters of small, yellow tubular flowers with a sweet, spicy scent. Only then do the long, blue-green leaves appear. The shrub grows slowly and naturally forms an attractive, rounded, slightly tiered crown. In Japan its bark has been used for centuries to make strong paper, hence the name paperbush.
Light
Partial shade
no harsh midday sun
Moisture
Normal
no wet feet
Legal basis
Sand or loam
acid to neutral
Hardiness
down to -12 °C
protect in harsh winters
Size
1.5 m
tall, 1.5 m wide
Flowering
February–April
| Pruning months | April |
|---|---|
| Height | 1.5 m |
| Native to Belgium | No, planted |
| Good for bees, butterflies and birds | Yes, for bees |
| Poisonous to people and pets | Not known to be poisonous |
| Flowering | February–April |
Identify
Paperbush: how do you recognise it?
- Habit
- Rounded, open shrub 1–1.5 m tall and wide, with supple branches that always fork into three.
- Leaf
- Lance-shaped, 8–15 cm, blue-green and soft; appears after flowering and drops in autumn after turning yellow.
- Flower
- Round clusters of 30–50 small, yellow tubular flowers, silvery and hairy outside, from February to April.
- Scent
- Sweet and spicy, best noticed on mild, sunny days.
- Branches
- So supple you can tie them in a knot without breaking them; brown with pale bark.
Flowering: February–April · Plants: April–May · Pruning: April
In your garden
Why grow it?
- Flowers and scents the garden from February, when hardly anything else is in bloom.
- The hairy flower buds already decorate the bare branches all winter.
- An early source of nectar for bumblebees and the first bees on mild days.
- Grows naturally into a handsome shape: pruning is hardly ever needed.
- An unusual shrub for a sheltered spot by the patio or front door, where you can enjoy the scent.
Paperbush: where does it grow best?
- Partial shade is ideal: morning sun and shade in the hottest hours.
- A spot sheltered from cold east and north winds, for example against a wall or among other shrubs.
- Humus-rich, loose soil that never dries out but never waterlogs either; neutral to slightly acid.
- Give it 1.5 m of space: it grows slowly but becomes nicely rounded.
- Light
- Partial shade
- Soil type
- Sand or loam
- Acidity
- Acid or neutral
- Moisture
- Normal
- Size
- 1.5 m tall, 1.5 m wide
- Hardiness
- Half hardy (to -12 °C): protect it in harsh winters
Goes well with
- Witch hazel: Another scented winter-flowering shrub that likes partial shade.
- Christmas rose: Flowers at the same time at its feet and likes the same sheltered, humus-rich spot.
- Snowdrops: A white carpet beneath the yellow flowers in February.
- Ferns: Green ground cover for summer, when the shrub itself is quieter.
- Winter daphne: A relative with equally fragrant winter flowers.
Maintenance
Paperbush: when and how to plant it?
Plant in April–May.
- Plant in April or May, once hard frosts are over, so the roots have the whole summer to settle.
- Dig a hole twice as wide as the root ball and mix in a few spadefuls of compost or leaf mould.
- Set the shrub at the same depth as in its pot and firm the soil lightly.
- Water thoroughly straight away, then weekly in dry spells during the first year.
- Spread a mulch of leaf mould or wood chips around the base to keep the soil cool and moist.
Care
- Water
- Regularly in the first year, then mainly in dry summers: the leaves droop in drought.
- Feeding
- A layer of compost in spring is enough; too much fertiliser gives weak growth.
- Mulching
- A layer of leaf mould or wood chips every spring keeps the roots cool and protects against frost.
- Shelter
- Protect young plants in severe winters with fleece over the crown; the flower buds can freeze below −10 °C.
- In a pot
- Possible in a large pot with ericaceous compost and garden compost; stand it against the house in winter.
Tip: Plant it where you often pass in February, for example by the front door: that way you get the most from the scent and the unusual buds.
Paperbush: when to prune it?
Pruning months: April.
When: Pruning is usually unnecessary. If needed, lightly after flowering, in April.
How:
- Remove only dead, damaged or crossing branches.
- Never prune in autumn or winter: you would cut off the flower buds.
- Shorten overlong branches just above a fork to keep the natural shape.
Caution: It dislikes hard pruning and is slow to regrow.
Propagation
- Semi-ripe cuttings
- In July–August: 10–12 cm cuttings in moist cutting compost under plastic. They root slowly and not always.
- Layering
- In spring, peg a low branch into the soil; after a year it has rooted and can be cut free.
Paperbush: how does it get through the winter?
Hardy to −12 °C: protect in harsh winters.
- Hardy to about −12 °C; in a severe winter the flower buds may freeze while the shrub itself survives.
- The silvery flower buds sit on the branches all winter and are a feature in themselves.
- Protect young plants in their first winters with fleece and a thick mulch.
- Move a pot against the house and wrap it in hessian or bubble wrap.
Diseases and pests
- Frosted buds: Brown, shrivelled buds after hard frost. A sheltered spot and fleece in severe frost help.
- Drooping leaves: A sign of drought or too much sun. Water and mulch; if needed, move it to partial shade.
- Yellow leaves: Often caused by waterlogging or soil that is too chalky. Provide humus-rich, free-draining soil.
- Aphids: Sometimes on young shoots in spring. Ladybirds usually deal with them; otherwise spray them off with water.
Through the year
- February: First flowers open; enjoy the scent on mild days.
- March: Full flower. Mulch.
- April: End of flowering. Prune lightly if needed. Planting.
- May: Leaves appear. Planting is still possible.
- July: Take semi-ripe cuttings. Water in dry spells.
- August: Water in dry spells. New flower buds form.
- October: Yellow autumn colour. No more pruning.
- December: Have fleece ready for hard frost.
Use
Good for wildlife
- Bees
- Nectar and pollen for honeybees and wild bees.
You and this species
Did you know?
- In Japan the fibrous bark of a close relative has been used for centuries to make strong paper, including for banknotes.
- The branches always fork into three, which is why its Japanese name is mitsumata, ‘three forks’.