tree

Sweet chestnut

Castanea sativa

Updated 8 Jul 2026 · AI-parsed entry

Sweet chestnut (Castanea sativa) — a tree, for Full sun, Medium water.

What it needs & gives back

↓ Needs

Sunlightfull sun to partial shade
Watermedium to high

↑ Gives back

Biomasshigh
Nutsedible yield
Timbervaluable hardwood

Through the year

Emergence

Bud break and leaf emergence typically occur after the last spring frost and when air temperatures consistently rise above 100C.

Flowering

Flowering occurs approximately 30 days after leaf emergence, typically in late spring to early summer.

Fruiting

Fruit development begins after flowering, with chestnuts maturing over a period of about 60 days.

Harvest

Chestnuts are typically harvested in autumn, often after the first light frosts, from late September through October as they fall from the trees.

Senescence

Leaves begin to change color and senesce with the onset of shorter days and the first autumn frosts.

Dormancy

The tree enters full dormancy after leaf drop, triggered by cold temperatures and short photoperiods, lasting through winter.

Timing is relative to your local season (temperate Northern Hemisphere).

Soil interactions

Drainagewell-drained
Nitrogen fixingNo
MycorrhizalYes
Accumulatespotassium, calcium
Soil textureloam, sandy_loam
Organic matterHigh
Compaction toleranceLow

Propagation

Methodsseed, grafting
Difficulty2 / 5
Establishes in~3 yr
Stratificationcold_moist
Self-seedingModerate

Wildlife & pests

Attractsbees, wildlife (for nuts)
Can host pestschestnut blight (Cryphonectria parasitica), chestnut weevil (Curculio elephas)
Can host diseaseschestnut blight (Cryphonectria parasitica)