Dunstan Chestnut Seeds - Fruit Plant

Dunstan chestnut is a hybrid tree developed by crossing American chestnut (Castanea dentata) with Chinese chestnut (Castanea mollissima), combining growth vigor with improved disease resistance. It is a deciduous tree adapted to temperate climates and forms a large, spreading canopy with a strong central trunk. This species is known for its adaptability to well-drained, slightly acidic soils and performs best in full sun. Dunstan chestnut trees establish from seeds with required cold stratification and develop steadily under suitable conditions. They are commonly used in orchards, agroforestry systems, and landscape planting due to their resilience and long-term growth potential.

Features

• Hybrid chestnut combining American and Chinese species traits
• Deciduous tree with broad, spreading canopy
• Adapted to temperate climates and seasonal conditions
• Suitable for orchards, landscapes, and long-term planting
• Requires cold stratification for seed germination

Specifications

• Scientific name: Castanea dentata × Castanea mollissima
• Common name (US): Dunstan Chestnut
• Seed type / variety: Hybrid variety
• Growth habit: Large, deciduous tree
• USDA zones: 4-9
• Planting season: Fall to early spring
• Growing season: Spring to fall
• Sowing Season:
  • Fall: October to December
  • Early Spring: February to March
• Germination time and conditions: 60-90 days cold stratification at 1-5°C
• Sunlight requirements: Full sun
• Soil requirements: Well-drained, slightly acidic soil
• Watering needs: Moderate, consistent moisture during establishment
• Mature plant size: 12-18 meters height, 12-18 meters spread
• Plant spacing: 8-12 meters between plants