Kalopanax septemlobus

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Growing Info

Scarification: Soak in hot tap water, let stand in water for 24 hours, OR Soak in sulfuric for 30 minutes and wash under cold water for 5-10 minutes. This soak may substitute for the warm stratification.

Stratification: warm stratify for 150 days, cold stratify for 90 days

Germination: sow seed 1/4" deep, tamp the soil, mulch the seed bed

Other: Germination may be irregular and some seed may lie over 2 years before germination.

Kalopanax septemlobusKalopanax septemlobus

Castor Aralia

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In Stock: 0.119 lb (Total:0.119lb)

Kalopanax septemlobus

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0.12 lb

Details

Germination:

71%

Germination test:

Cut (Full Seed)

Purity:

97%

Seeds per lb:

27,742

Quantity:

0.12 lb

Collected in:

Belgium

Crop year:

2024

Min. hardiness zone:

Item ID:

1835605

Native to: China North-Central, China South-Central, China Southeast, Japan, Korea, Kuril Is., Manchuria, Nansei-shoto, Primorye, Sakhalin

Introduced to: New York

Native

Introduced

Characteristics

Growing Info

Stratification: warm stratify for 150 days, cold stratify for 90 days

Germination: sow seed 1/4" deep, tamp the soil, mulch the seed bed

Other: Germination may be irregular and some seed may lie over 2 years before germination.

Discover Kalopanax septemlobus, often known as Castor Aralia or Prickly Castor-oil Tree, the only species in the Kalopanax genus. This deciduous tree is part of the Araliaceae family and thrives in the northeastern regions of Asia, from Sakhalin and Japan west to southwestern China. It is recognizable by its maple-like leaves, dark gray ridged bark, and white flowers which bloom in late summer, sometimes forming large 2-foot clusters. This tree's younger stems bear spines, adding an intriguing appeal. It prefers deep, rich soil and full sun. As a mature tree, it becomes a remarkable shade provider and is sometimes grown out of pure curiosity due to its dominant, coarse stature with a loosely rounded crown. Its leaf lobes are remarkably variable, echoing the unpredictability of Mother Nature herself. You might find it cultivated as an ornamental tree in Europe and North America, contributing a 'tropical' touch to the landscape with its large palmate leaves. Despite this exotic appearance, the Kalopanax septemlobus is impressively hardy, standing tall and unfazed in temperatures plummeting to -40°F.