Apple
Can I Grow Gravenstein?
Gravenstein is the heirloom apple that Sonoma County built its reputation on — intensely aromatic with a perfect sweet-tart balance that makes the best applesauce and pies. It's a triploid that produces no viable pollen.
Growing Requirements
Chill Hours
700
Hardiness Zones
4-5-6-7-8
Harvest
August
Results
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About Gravenstein
Gravenstein is the heirloom apple that Sonoma County built its reputation on — intensely aromatic with a perfect sweet-tart balance that makes the best applesauce and pies. It's a triploid that produces no viable pollen.
Gravenstein requires 700 chill hours — the number of hours between 32°F and 45°F during winter dormancy. Without enough chill, the tree may fail to flower properly or produce poor fruit.
Common Challenges
Triploid — needs two other apple varieties for pollination; biennial bearing; bruises easily.
Common Misconception
Can I grow Gravenstein in Zone 9 or warmer?
No. While Gravenstein is listed for zones 4-8, it requires 700 chill hours to produce fruit. Warm zones like 9+ typically receive only 200-400 chill hours. The tree may survive but will not fruit reliably. Consider low-chill alternatives like Anna apple (200h) or Tropic Snow peach (200h) instead.
Other Apple Varieties
Chill hour data from ERA5 reanalysis (Copernicus/ECMWF). Variety information compiled from university extension services.