Sinojackia xylocarpa

RHS Plant Profile
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A deciduous, small, spreading tree to 6m tall or large shrub with glossy, dark green, oval elavesto 8cm long with toothed margins. Pendant, white, star-shaped spring flowers to 2.5cm across are borne in clusters of 3-5 and followed by egg-shaped, woody fruits

Position

Full sun, Partial shade

Soil Types

Clay, Loam

Max Height

4-8 metres

Max Spread

4-8 metres

Size

Time to Maturity
20–50 years
Max Spread
4-8 metres
Max Height
4-8 metres

Growing Conditions

Clay Loam
Moisture
Moist but well–drained
pH
Acid

Position

Full sun Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Styracaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Spreading branched
Genus
Name Status
Correct
Plant Range
S China

How to Grow

Cultivation

Grow in a sheltered position in sun or partial shade in fertile, humus-rich, moist, acid soil

Propagation

Propagate by softwood cuttings or by seed

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Low Maintenance
  • Flower borders and beds

Pruning

Pruning group 1

Pests

Generally pest-free

Diseases

Generally disease-free