Thesupermat · CC BY-SA 3.0
English walnut
Tree·Juglans regia
Full sun
Sun
Medium
Water
Well-drained soil
Drainage
Zones 4–9
Hardiness
English walnut (Juglans regia) is a tree. It grows best in full sun and has moderate water needs. It grows well with black locust.
Through the year
DormantFloweringFruiting
Works well with
from wiki dataWHAT IT NEEDS
Wants full sun
Needs moderate water
Needs well-drained soil
Prefers soil pH 5.5–6.5
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Prefers loam, sandy loam, clay loam soil
Struggles in compacted soil
Draws up potassium, phosphorus from deep in the soil
Adds a lot of organic matter to the soil
Partners with mycorrhizal fungi to boost nutrient uptake
WHAT IT GIVES
Gives shade (dense shade)
Gives mulch biomass (high)
Provides potassium
Provides phosphorus
Attracts pollinators
Attracts beneficial insects
Shelters birds
HOW IT GROWS
SIZE & SPACING
Canopy tree
Height1500–3000 cm
Spacing1500 cm (min 1000 cm)
Root depthDeep
Width1500–2000 cm
Width figures are rough estimates, the most variable measurement in our data.
AI estimate · accuracy improves as growers contribute corrections.
HOW TO PROPAGATE
Propagate by seed, grafting
Difficulty
Establishes in about 5 yr
Self-seeds a little on its own
Where this comes from
Parsed11 Sept 2026
ConfidenceNot recorded
Photograph Thesupermat · CC BY-SA 3.0