American Sweet Chestnut

Castanea dentata

Physical Characteristics

Castanea dentata is a deciduous Tree growing to 30 m (98ft) by 15 m (49ft). See above for USDA hardiness. It is hardy to UK zone 4. It is in flower in July, and the seeds ripen in October. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Insects. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: mildly acid and neutral soils and can grow in very acid soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil and can tolerate drought.

Distribution

Eastern N. America - Maine and Ontario to Michigan, Georgia and Arkansas.

Habitats

Woodland Garden Canopy;

Edible Uses

Edible Parts: Oil Seed Edible Uses: Chocolate Coffee Oil Seed - raw or cooked[2, 62, 63, 102, 117]. Rather on the small side, but these are the sweetest seeds of any species in this genus[183]. The seed contains about 7% fat, 11% protein[159]. It can be dried, ground into powder and then be added to cereals when making bread, cakes etc[213]. A delicious oil can be extracted from the seed by crushing the nuts, boiling them in water and then skimming off the oil as it comes to the surface[213]. It can be used as a topping for various puddings[213]. The roasted nut can be used as a coffee substitute and a chocolate substitute can also be made from it[183] (no further details).

Medicinal Uses

Astringent Expectorant A warm water infusion of the leaves has been used to calm the respiratory nerves and promote expectoration. The infusion has also been used in the treatment of whooping cough but modern opinion is that the leaves are no more than a mild astringent.

Known Hazards

None known