ZonePlant
Dunstan chestnut

nut variety in zone 7a

Dunstan chestnut in zone 7a

Dunstan · Castanea species and hybrids

Zone
7a 0°F to 5°F
Growing season
210 days
Chill needed
400 to 700 below 45°F
Days to harvest
120 to 180

The verdict

Detailed guidance for this section is being prepared. Check back soon.

About Dunstan

Sweet, starchy, classic roasted-chestnut flavor; roasting, soup, stuffing, flour. American x Chinese hybrid with strong blight resistance, the leading restoration cultivar in the eastern US. Productive young (3-5 years).

Critical timing for zone 7a

Detailed guidance for this section is being prepared. Check back soon.

Common challenges in zone 7a

  • ▸ Cedar-apple rust
  • ▸ Brown rot
  • ▸ Fire blight
  • ▸ High humidity disease pressure

Disease resistance

Documented resistance for Dunstan; useful for low-spray management in zone 7a.

  • chestnut-blight

Modified care for zone 7a

Detailed guidance for this section is being prepared. Check back soon.

Dunstan in adjacent zones

Other chestnut varieties for zone 7a

Frequently asked questions

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Will Dunstan chestnut grow in zone 7a?

Yes. Dunstan is recommended for USDA zones 5a through 8a, which includes zone 7a.

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Are there enough chill hours in zone 7a?

Chestnut needs 400 to 700 chill hours. Zone 7a typically meets this range; check local microclimate against historical chill totals to confirm.

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Does Dunstan resist regional diseases in zone 7a?

Dunstan carries documented resistance to chestnut-blight, which can simplify low-spray management in zone 7a.

Image: "Gebarsten bolster van een paardenkastanje (Aesculus) 20-09-2020 (d.j.b.) 01", by Dominicus Johannes Bergsma, via Wikimedia Commons, licensed under CC-BY Source.

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