About Chill Hours
Fruit trees (Apples, Peaches, Cherries) need a certain number of hours between 32°F and 45°F during winter to break dormancy properly in spring.
Requirements
- Low Chill (Peach): 200-300 hours. (Florida/Texas).
- High Chill (Apple): 800-1000+ hours. (North).
How to Use
This is a simplified estimator based on average coldest month temperature to help you choose the right variety for your zone.