berry variety in zone 7a
Chester Thornless blackberry in zone 7a
Chester Thornless · Rubus subgenus Rubus
- Zone
- 7a 0°F to 5°F
- Growing season
- 210 days
- Chill needed
- 200 to 800 below 45°F
- Days to harvest
- 60 to 90
The verdict
Detailed guidance for this section is being prepared. Check back soon.
About Chester Thornless
Sweet-tart, firm, glossy berries with full flavor; fresh and processing. Trailing thornless habit, very productive, cold-hardy for blackberries.
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
Modified care for zone 7a
Detailed guidance for this section is being prepared. Check back soon.
Chester Thornless in adjacent zones
Other blackberry varieties for zone 7a
- Marionberry
Rich, complex, sweet-tart; the iconic Pacific Northwest blackberry, prized for pies and jam. Trailing habit, t…
- Navaho
Sweet, firm, small-medium berries with high sugar; fresh eating premium and shipping quality. Erect thornless,…
- Ouachita
Sweet, firm, large berries with classic flavor; fresh eating and shipping. Erect thornless, productive, diseas…
- Prime-Ark Freedom
Sweet, large, very high quality berries; fresh eating premium. Primocane-fruiting (bears on first-year canes),…
- Triple Crown
Sweet, large, glossy black berries with rich balanced flavor; fresh, baking, jam. Semi-erect thornless, very p…
Frequently asked questions
- Will Chester Thornless blackberry grow in zone 7a?
Yes. Chester Thornless is recommended for USDA zones 5a through 7b, which includes zone 7a.
- Are there enough chill hours in zone 7a?
Blackberry needs 200 to 800 chill hours. Zone 7a typically meets this range; check local microclimate against historical chill totals to confirm.
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Image: "Ripe, ripening, and green blackberries", by Ragesoss, via Wikimedia Commons, licensed under CC-BY-SA 3.0 Source.
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