Castanea hybrid ?Dunstan?

Dunstan Chestnut

Castanea × ‘Dunstan’ (Dunstan Chestnut)
A widely planted hybrid chestnut tree developed by Dr. Robert T. Dunstan that combines the blight resistance of Chinese chestnut with the nut quality and growth traits of American chestnut. It’s one of the most common chestnut cultivars grown in the U.S. and is prized for its reliable nut production, adaptability, and non-tannin sweet nuts.

Size:



Width: 30–40+ ft at maturity



Height: 40–60+ ft at maturity
(full-sized tree; spacing and pruning determine eventual canopy size)



Zones: 5–9 (cold hardy and adaptable across a broad range of climates)

Light: Full sun

Soil:



Prefers well-drained, slightly acidic soils



Tolerates a range from sandy to heavier soils when drainage is good



Features:



Fruit: Large, sweet edible chestnuts with no bitter tannins — excellent for roasting, cooking, and baking



Flowers: Catkin-type blooms in late spring prior to foliage



Form: Upright to broadly rounded canopy; vigorous trunk and lateral branching



Blight resistance: More resistant than pure American chestnut due to hybrid genetics



Attracts:
Wildlife such as deer, turkeys, squirrels, and other animals that feed on nuts

Uses:
Nut orchards, edible landscapes, wildlife food plots, large-space ornamental shade

Notes:



Trees often begin producing nuts within 3–5 years of planting when young stock is used.



Plant more than one chestnut for reliable pollination and nut set.



Nut harvest typically in fall, when burs open and nuts drop.

Plant type

Nut Tree

Height

60-80'

Width

50'

Hardiness zones

5–9

Sunlight

Full Sun

Leaf color

Green

Fall color

Yellow

Soil

Acidic, Loamy, Moist well-drained

Landscape use

Nuts

Shape

Broad Upright

Fruit

Yes

Drought tolerant

No