How to Grow Chestnut
Castanea sativa
Sweet chestnut needs a large, sunny site with deep, well-drained, slightly acidic soil. In the UK, long warm summers are needed for nuts to ripen fully, so southern and sheltered locations produce the best crops. Plant at least two different varieties for cross-pollination. Trees are slow to start bearing but are very long-lived and low-maintenance once established. Prune only in winter to remove dead or crossing branches.
Yearly Lifecycle
Care Essentials
Mulch with compost in spring. Established trees rarely need feeding.
Watch For
- Chestnut blight
- Ink disease
- Chestnut weevil
- Leaf miner
Companions
Comfrey, Clover, Wildflowers
Track your Chestnut care schedule — pruning, feeding, and seasonal tasks
Start planning freeCare Requirements
☀️ Light
Full sun in a warm, sheltered spot
Full sun is essential for nut ripening in the UK. Choose a south-facing, sheltered position for the best chance of a worthwhile crop.
💧 Watering
Water young trees; established ones self-sufficient
Water young trees during dry spells for the first two or three years. Established trees have deep roots and are drought-tolerant.
🌱 Fertilizing
Spring compost mulch; little feeding needed
Mulch with compost in spring. Established trees rarely need additional feeding as they are adapted to poor soils.
✂️ Pruning
Winter prune dead or crossing branches only
Prune in winter while dormant. Remove dead, damaged, or crossing branches. Minimal pruning is needed once the framework is established.
🍎 Harvesting
Gather fallen nuts quickly in autumn
Collect fallen nuts promptly in autumn before squirrels take them. Check for weevil exit holes and discard damaged nuts. Roast, boil, or store in a cool dry place.
Growing Tips
Plant two for pollination
Sweet chestnuts need a different variety nearby for cross-pollination. Without a partner, nut set will be poor or absent.
Choose a warm, sheltered spot
Nuts ripen best after long, warm summers. A south-facing position sheltered from cold winds gives the best chance of a worthwhile crop in the UK.
Collect fallen nuts promptly
Gather chestnuts as soon as they drop in autumn before squirrels and mice take them. Check for weevil holes and discard any damaged nuts.
Allow plenty of space
Sweet chestnuts can grow very large over time. Allow at least 7–10 m between trees and keep them well away from buildings and boundaries.
Pests & Diseases
Pest Chestnut Weevil
Identification: Small round exit holes in fallen nuts; white grubs found inside when nuts are cut open
- Collect fallen nuts promptly before larvae exit and pupate in the soil
- Destroy infested nuts rather than composting them
- No practical chemical control for garden trees
Pest Horse Chestnut Leaf Miner
Identification: Brown blotch mines between leaf veins; leaves turn brown and crispy from mid-summer
- Rake up and destroy fallen leaves in autumn to reduce overwintering pupae
- Encourage blue tits which feed on the larvae
- No effective chemical treatment for large trees
Pest Grey Squirrels
Identification: Partially eaten nuts and empty husks on the ground; bark stripping on young branches
- Harvest nuts as soon as they begin to fall
- Use squirrel baffles on isolated trees if practical
- Not applicable
Disease Chestnut Blight Cryphonectria parasitica
Symptoms: Sunken orange-brown cankers on bark; wilting and dieback of branches above the canker; orange fungal pustules
Treatment: Prune out affected branches well below the canker; sterilise tools; no cure for severe infections
Prevention: Buy certified disease-free stock; avoid importing wood from affected regions
Disease Ink Disease Phytophthora cambivora
Symptoms: Dark, ink-like staining at the base of the trunk; crown thinning and dieback; root decay
Treatment: No effective cure; remove severely affected trees to prevent spread
Prevention: Ensure good drainage; avoid waterlogged sites; plant on well-drained slopes
Popular Varieties
Marigoule, Bouche de Betizac, Maraval, Belle Epine, Colossal
Spacing & Planting
| Plant spacing | 755 cm |
| Row spacing | 1050 cm |
| Mature height | 1200 cm |
| Mature spread | 800 cm |
Often planted at 600cm then thinned as trees mature. Needs two varieties for pollination.
Log Chestnut in your garden — track growth, care, and harvests year after year
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