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KALOPANAX septemlobus
Commonly known as Castor aralia, Prickly castor oil tree
(Pictus) - immature growth has stout prickles. Large 5-7 lobed leaves and clusters of white flowers are followed by clusters of black berries. Outstanding yellow autumn colour
£45.00 each
Full Plant Details - Sun/Soil & other attributes - Click to close
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Floweringlocal_floristJanlocal_floristFeblocal_floristMarlocal_floristAprlocal_floristMaylocal_floristJunlocal_floristJullocal_floristAuglocal_floristSeplocal_floristOctlocal_floristNovlocal_floristDec
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Architectural interest
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Good to know
Syn. K. pictus. A fine, unusual specimen tree. Flowers attract insects. -
Pests & Diseases
None -
Place of origin
China, Korea, Russia(S. Kurile Islands, Sakhalin), Japan(Ryukyu Islands) -
DeciduousDark-green leaves to 35cm (14in) across from swollen, late-winter buds.
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White
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PaniclesLarge panicles 20-30cm (8-12in) long
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Fully hardy
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Lobed
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Height
10m (33ft) -
Spread
10m (33ft)
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TreeSpreading tree. Produces 4- or 5-petalled very small flowers followed by spherical, blue-black fruits.
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Pruning group 1
Suitable for: Deciduous and evergreen trees, and some deciduous shrubs.
Pruning: Minimal pruning required. Prune wayward or crossing branches to maintain a healthy framework.
When: When dormant in the late winter/early spring. Some in the summer/autumn to prevent bleeding of sap.
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Hardy - very cold winter
Hardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F) -
Summer Seasonal Interest
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Fertile moist well-drained soil
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Full sun
Best sheltered by other trees and shrubs -
Rounded to broadly spreading
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Mature Size10m (33ft)
10m (33ft)
View Detailed Plant Description
View Planting Tips and Care Advice
Kalopanax - Growing Guide
Trees - Care Guide
- How to plant a tree - Video Tip ondemand_video
- How to plant a tree
- Ties - Video Tip ondemand_video
- Restaking fallen young trees - Video Tip ondemand_video
- Fallen old tree - Video Tip ondemand_video
- Clearing up fallen beech tree - Video Tip ondemand_video
- Spring pruning - Video Tip ondemand_video
- Removing side shoots - Video Tip ondemand_video
- Pruning and Shaping Magnolia - Video Tip ondemand_video
- Deer protection - Video Tip ondemand_video
- Weed Spraying - Video Tip ondemand_video
- Removing Ivy - Video Tip ondemand_video
- Removing wire protection - Video Tip ondemand_video
- Tidying young trees in October - Video Tip ondemand_video
- Tree Survey - Video Tip ondemand_video
- Crown uplift - Video Tip ondemand_video
- Removing shoots below graft - Video Tip ondemand_video
- Removing peeling bark - Video Tip ondemand_video
- Maintaining variegation - Video Tip ondemand_video
