About

Kalopanax septemlobus, tree aralia or castor-aralia, is a large, deciduous, prickly tree to 25 m with bold, palmate, maple-like leaves to 35 cm across and clusters of small, white flowers in late summer followed by small, blue-black fruits. A striking, architectural specimen tree for a large garden.

About the genus

Kalopanax is a genus of one species of large, deciduous, prickly tree in the ivy family (Araliaceae), native to Japan, China and Korea. It produces bold, palmate leaves and umbrella-like clusters of small, white flowers. Grown as a striking architectural specimen.

Plant details

Suggested usesBorders, containers, mixed plantings.

Care notes

CultivationPlant in well-drained soil in a suitable position. Water during establishment.
PruningRemove dead or damaged growth as needed.
PropagationPropagate by division, cuttings, or seed as appropriate.
Pest resistanceGenerally pest-free. Monitor for common garden pests.
Disease resistanceGenerally disease-resistant. Ensure good air circulation.