Lemmikkipuu · CC BY-SA 3.0
Hazel
Shrub·Corylus avellana
Full sun
Sun
Medium
Water
Well-drained soil
Drainage
Zones 4–8
Hardiness
Hazel (Corylus avellana) is a shrub. It grows best in full sun and has moderate water needs. It grows well with black alder and european beech.
Through the year
DormantFloweringLeafing outFruiting
Works well with
from wiki dataWHAT IT NEEDS
Wants full sun
Needs moderate water
Needs well-drained soil
Prefers soil pH 6–6.5
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Prefers loam, sandy loam, clay loam soil
Tolerates some soil compaction
Draws up potassium, calcium, magnesium 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 mulch biomass (high)
Gives pollen (abundant)
Gives fruit (edible)
Provides potassium
Provides calcium
Provides magnesium
Attracts pollinators
HOW IT GROWS
SIZE & SPACING
Shrub layer
Height300–800 cm
Spacing400 cm (min 200 cm)
Root depthMedium
Width300–800 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, cuttings, layering, division
Difficulty
Establishes in about 2 yr
Self-seeds readily on its own
Where this comes from
Parsed11 Sept 2026
ConfidenceNot recorded
Photograph Lemmikkipuu · CC BY-SA 3.0