Walnut
Juglans regia kamaonia
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Pl. 492A — Juglans regia kamaonia
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IOverview
Overview
Walnut, scientifically known as Juglans regia kamaonia, is a large tree native to regions including Afghanistan, Iran, Iraq, Lebanon-Syria, North Caucasus, Pakistan, and Poland. This tree thrives in moist, light (sandy), medium, or heavy (clay) soil with a pH range of 6 to 7.5, making it adaptable to various conditions. It is hardy in zones 4-8 and can grow up to 30 meters tall. Known for its edible seed, the walnut tree has been valued for centuries for its nutritious kernels. Its distinctive feature includes a light energy level of 8/10, indicating a gentle presence in its environment.
Quick answers
What is Walnut?
Walnut, scientifically known as Juglans regia kamaonia, is a large tree native to regions including Afghanistan, Iran, Iraq, Lebanon-Syria, North Caucasus, Pakistan, and Poland. This tree thrives in moist, light (sandy), medium, or heavy (clay) soil with a pH range of 6 to 7.
What is Walnut used for?
Traditionally used for immune support. Each claim is evidence-rated — see Section II for full citations.
Best for
Top 1 evidence-ranked use of Walnut
Clinicaluses · safety · chemistry · dosagemedicinal profile
IIBenefits & evidence
1 claim · 0 sources
Benefits & evidence
1 claim · 0 sources- Walnut has been traditionally used in Ayurveda to support immune function, often prepared as a decoction. The high content of ellagic acid and other polyphenols may contribute to its antioxidant properties.
Ellagic acid and other polyphenolic compounds found in walnuts have potent antioxidant effects that can help neutralize free radicals and reduce oxidative stress, potentially supporting immune health.
Growingconditions · propagation · uses
VCultivation
Cultivation
Walnut trees, Juglans regia kamaonia, thrive in light to medium soil types and tolerate heavier clay soils. They require moist conditions but are not overly fussy about water. These trees prefer a pH between 6 and 7.5 and grow best in full sun, needing at least 8 hours of sunlight per day. Hardy from zones 4-8, they can reach heights of up to 30 meters. For propagation, seeds can be used, though they may need stratification for successful germination.
Light
8/10
Water
Moist
Soil
Light (sandy), Medium, Heavy (clay)
Hardiness
4-8
Habit
Tree
Mature size
30.0 m tall
Soil pH
6–7.5
Seasonal calendar
Northern hemisphere · UTC month is September
winterspringsummerautumnwinter
BloomJFMAMJJASOND
For first-time growers
How to grow Walnut for the first time
8steps
Start with planting a walnut tree, as it is best for beginners.
- 1
What you'll need
A walnut seed or sapling, a small trowel, and some compost.
- 2
Best time to plant
Plant in spring after the last frost or in autumn before the first freeze.
- 3
Soil and container prep
Choose a spot with well-draining soil that is light (sandy), medium, or heavy. Ensure the pH is between 6 and 7.5.
- 4
Sowing or transplanting
Plant walnut seeds about 2-3 cm deep in the ground or in containers filled with a mix of compost and soil.
- 5
First two weeks
Water regularly to keep the soil moist but not waterlogged. Monitor for any signs of pests or diseases.
- 6
Ongoing care
Provide regular watering, especially during dry periods. Fertilize in early spring with composted manure.
- 7
Harvest or pruning
Prune the tree to maintain its shape and remove dead branches. Harvest nuts when they are fully ripe and easily fall from the tree.
- 8
Common mistakes
Planting too deep, not providing enough water, and neglecting regular pruning.
VIEdible & utility
Edible & utility
Edible parts:Seed
Edible uses: Oil
Other uses:HerbicideoilTanninLumber
Contextrange · companions · related
VIIDistribution
10 native · 20 introduced
Distribution
10 native · 20 introducedDistribution across3 continents· 10 native· 20 introduced
Europe11 regions
native (2)PolandRussia
introduced (9)CyprusDenmarkFranceGreeceHungaryItalyPortugalUkraineUnited Kingdom
Asia9 regions
native (5)AfghanistanIranIraqPakistanTurkey
introduced (4)ChinaKazakhstanLaosSouth Korea
Africa2 regions
introduced (2)LibyaMorocco
Broader regions
native:Lebanon-Syria, Transcaucasus, West Himalaya
introduced:East Aegean Is., East Himalaya, Kirgizstan, Kriti
IXSpecimen gallery
1 image
Specimen gallery
1 imageXSee also
8 related
See also
8 relatedPlants you might compare or use together — scored by shared family, common use cases, and growing requirements.
shared use cases
Different families, similar therapeutic role — good for comparing.
XI
Explore further
Companion planting
Health goals
Compare with similar plants
Growing zone
XII
About this entry
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