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Oplopanax horridus (Devil's club)

Other names: Echinopanax horridus, Fatsia horrida, Alaskan ginseng, Devil's walking stick, Ricinophyllum horridum, Fatsia horridum, Oplopanax horridum, Panax horridum, Echinopanax horridum

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Species
O. horridus is an erect, suckering, deciduous shrub with thorny stems bearing spirally arranged, palmate, spiny, mid-green leaves and racemes of small, dense umbels of tiny, greenish-white flowers in summer followed by ovoid, bright red fruit.
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Season of interest

Flower

Spring Summer Autumn Winter
Flower

Foliage

Spring Summer Autumn Winter
Foliage
Height and spread

Height and spread

Size Max height Max spread To maturity
2 m 2 m 10-20 years
6 ft 6 ft 10-20 years

Where to grow

Soil type
  • Chalky
  • Clay
  • Loamy
  • Sandy
Soil drainage
  • Moist but well-drained
  • Well-drained
Soil pH
  • Acid
  • Alkaline
  • Neutral
Sunlight
  • Partial Shade
  • Full Shade
Aspect
  • East
  • West
  • South
Exposure
  • Sheltered

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Additional plant details

Cultivation

Grow in cool, moist soil in partial to full shade. Best in a moist, woodland setting. Tolerates maritime exposure. Young may be damaged by late frost.

Suggested uses

Architectural, Underplanting, Wildlife, Bog garden, Woodland

UK hardiness

H6

USDA zones

Zone 4, Zone 5, Zone 6, Zone 7, Zone 8

Sunset zone

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Erect

Native to

Western North America

Drought tolerant

No

Flood tolerant

Yes

Toxicity

Handle carefully as stems are covered with barbed thorns. Site away from foot traffic.

Plant care

Pruning

Pruning group 1.

Propagation methods

Seed, Root cuttings, Suckers

Propagation

Seed may be slow to germinate.

Pests

Diseases

Take root cuttings

Rooted suckers can be potted up in spring for one year before planting out

Plant in wet rich soil at the margins of ponds or streams

Plant in moist or boggy soil

Plant in partial or full shade (autumn or spring)

Sow seeds in a cold frame in autumn

Other plants

Plants in this Genus (1)

Oplopanax

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Oplopanax horridus
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Oplopanax horridus Devil's club
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Companion plants (0)

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