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Juglans regia fallax Walnut Deciduous tree (1 Page of 5) The Juglans regia fallax plant species is found in E. Asia - S. China to the Himalayas. It is a member of the Juglandaceae family. Common gardeners may know the plant as Walnut. Some home gardeners know the variety as J. duclouxiana. Dode. Cultivation | Propagation | General Uses Medicinal | Edible Uses Latin Name: Juglans regia fallax Common Name: Walnut Family: Juglandaceae Author: (Dode.)Popov. Known Hazards: None known Mature Height: 30 Mature Width: Habitat: Forests in mountain regions[46].
Cultivation Notes: Requires a deep well-drained loam and a sunny position sheltered from strong winds[1, 11]. Prefers a slightly alkaline soil[200].
The dormant plant is very cold-tolerant, but the young growth in spring, however, can be damaged by late frosts.
Plants produce a deep taproot and they are intolerant of root disturbance[1, 11]. Seedlings should be planted out into their permanent positions as soon as possible and given some protection for their first winter or two since they are somewhat tender when young[1, 11].
Flower initiation depends upon suitable conditions in the previous summer[200]. The flowers and young growths can be destroyed by even short periods down to -2°c, but fortunately plants are usually late coming into leaf[200].
Any pruning should only be carried out in late summer to early autumn or when the plant is fully dormant otherwise wounds will bleed profusely and this will severely weaken the tree[200].
Trees have a dense canopy which tends to reduce plant growth below them. We have no specific information for this species, but the roots of several members of this genus produce substances that are toxic to many plant species, especially apples (Malus species), members of the Ericaceae, Potentilla spp and the white pines (certain Pinus spp.)[200]. The leaves of many species also secrete substances that have an inhibitory affect on plants growing underneath them. All in all this is not a very good companion plant[K].
This plant is cultivated for its edible seed in China[46, 61].
This species is notably susceptible to honey fungus[200].
For further Juglans regia fallax gardening information click on one of the blue links below Cultivation | Propagation | General Uses Medicinal | Edible Uses
The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'. View their bibliography

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