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Juglans sigillata
Iron walnut (Juglans sigillata) is a medium-sized deciduous tree of the walnut family, grown in China for its thick-shelled edible nuts and timber. It needs a long, warm growing season with full sun and deep, fertile soil, and is not normally grown as a houseplant.
Juglans sigillata, common name iron walnut (Chinese: 泡核桃, pao he tao), is a species of tree in the walnut family Juglandaceae native to the eastern Himalayas and western China. The tree has been cultivated for its edible walnuts, and there have been at least 80 authorised or approved cultivars produced after successful implementation of grafting technology.
The tree has been cultivated for its edible nuts, and there have been at least 80 authorised or approved cultivars produced after successful implementation of grafting technology. It is widely cultivated in China for walnut production and wood. It is commonly found in Yunnan, China's top walnut producing region in terms of acreage and yield, but also is found in Guizhou, Sichuan and Tibet in China. It is sometimes grown in gardens and parks as an ornamental plant. Outside of its native range, it was first cultivated at Hackfalls Arboretum in New Zealand in about 2000, and then more widely from 2005.
Argentine Walnut · Southern California Black Walnut · Butternut · Northern California Black Walnut · Hebei Walnut · Manchurian Walnut · Little walnut · Andean walnut · Black Walnut · Walnuts · Persian Walnut · Walnut
Text excerpted from the Wikipedia article Juglans sigillata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
