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Juglans hindsii - Jeps. ex R.E.Sm.
                 
Common Name Hind's Black Walnut, Northern California walnut, Paradox hybrid walnut
Family Juglandaceae
USDA hardiness 8-9
Known Hazards None known
Habitats Rocky and gravelly well-drained soils[229], by the coast, along rivers and streams and occasionally to the slopes of Napa range[82]
Range South-western N. America - California.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Frost Hardy Moist Soil Full sun

Summary
Bloom Color: Unknown. Main Bloom Time: Early spring, Late spring, Mid spring. Form: Rounded.

Juglans hindsii Hind


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Juglans hindsii Hind
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Physical Characteristics
 icon of manicon of lolypop
Juglans hindsii is a deciduous Tree growing to 15 m (49ft 3in) at a medium rate.
It is hardy to zone (UK) 8. It is in flower from May to June. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by Wind.The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil and can tolerate drought.

Synonyms
Habitats
Woodland Garden Canopy;
Edible Uses
Edible Parts: Oil;  Seed.
Edible Uses: Oil.

Seed - raw[105, 117, 257]. The seed is small with a thick shell but it makes good eating[183]. A sweet taste[82, 229]. An edible oil is obtained from the seed, it tends to go rancid quickly.
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



None known
Other Uses
Dye;  Herbicide;  Oil;  Rootstock;  Wood.

This species is often used in south-western N. America as a vigorous disease-resistant and drought tolerant rootstock for J. regia[117, 183, 229]. A black dye is obtained from the seed husks[257]. Plants produce chemicals which can inhibit the growth of other plants. These chemicals are dissolved out of the leaves when it rains and are washed down to the ground below, reducing the growth of plants under the tree[18, 20, 159]. The roots of many 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]. Wood - heavy, hard, rather coarse grained[82]. A valuable timber, the tree is occasionally cultivated for its wood[229].
Cultivation details
Landscape Uses:Specimen. Requires a deep well-drained loam and a sunny position sheltered from strong winds[1, 11]. Prefers a slightly alkaline soil[200]. The plant's deep taproot gives the tree some degree of drought tolerance[229]. Plants are hardy at Kew[11], though they do not succeed in the colder areas of the country[200]. This species is occasionally cultivated for its edible seed[117]. There are also some named forms that have been selected for their use as a rootstock[183]. 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 species is notably resistant to honey fungus[200]. Special Features:North American native, Inconspicuous flowers or blooms.
Propagation
The seed is best sown as soon as it is ripe in individual deep pots in a cold frame[80]. You need to protect it from mice, birds, squirrels etc. The seed usually germinates in late winter or the spring. Plant out the seedlings into their permanent positions in early summer and give some protection from the cold for their first winter or two. The seed can also be stored in cool moist conditions (such s the salad compartment of a fridge) over the winter and sown in early spring but it may then require a period of cold stratification before it will germinate[78, 80].
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Juglans ailanthifoliaJapanese Walnut31
Juglans ailanthifolia cordiformisHeartseed Walnut41
Juglans californicaCalifornia Walnut, Southern California walnut21
Juglans cathayensisChinese Walnut30
Juglans cinereaButternut - White Walnut, Butternut33
Juglans intermediaHind's Black Walnut, Northern California walnut, Paradox hybrid walnuH30
Juglans majorArizona Walnut20
Juglans mandschuricaManchurian Walnut31
Juglans microcarpaTexas Walnut, Little walnut, Stewart's little walnut20
Juglans nigraBlack Walnut33
Juglans regiaWalnut, English walnut, Persian Walnut,43
Juglans regia fallaxWalnut30
Juglans regia kamaoniaWalnut33
Juglans sinensis 31
Juglans x bisbyiBuartnut30
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Expert comment
 
Author
Jeps. ex R.E.Sm.
Botanical References
1182200
Links / References
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Subject : Juglans hindsii  

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