fruit tree variety in zone 6a
Shiro japanese plum in zone 6a
Shiro · Prunus salicina
- Zone
- 6a -10°F to -5°F
- Growing season
- 180 days
- Chill needed
- 500 to 900 below 45°F
- Days to harvest
- 120 to 150
The verdict
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About Shiro
Sweet, mild, juicy, yellow skin and flesh; fresh eating and good for cooking. Heavy producer, often the first plum to ripen.
Critical timing for zone 6a
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Common challenges in zone 6a
- ▸ Brown rot in stone fruit
- ▸ Japanese beetles
- ▸ Spring frost damage to peach buds
Modified care for zone 6a
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Shiro in adjacent zones
Other japanese plum varieties for zone 6a
Frequently asked questions
- Will Shiro japanese plum grow in zone 6a?
Yes. Shiro is recommended for USDA zones 5b through 7b, which includes zone 6a.
- Are there enough chill hours in zone 6a?
Japanese Plum needs 500 to 900 chill hours. Zone 6a typically meets this range; check local microclimate against historical chill totals to confirm.
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Image: "Starr 080405-3957 Prunus salicina", by Forest & Kim Starr, via Wikimedia Commons, licensed under CC-BY Source.
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