Chill Hours and Fruit Trees in Southeast Georgia

One of the most important things to consider when planting fruit trees in Southeast Georgia is chill hours.

Chill hours are the number of hours a fruit tree experiences winter temperatures between about 32°F and 45°F. These cool temperatures allow the tree to break dormancy and produce flowers in spring. Without enough chill hours, trees may bloom poorly or produce little fruit.

In Southeast Georgia, most areas receive about 400–600 chill hours each winter, so it is important to choose fruit varieties suited to our climate.

In general, when fruit trees do not receive enough chill hours, they cannot properly break winter dormancy.

As a result, the tree may:

• Leaf out unevenly or very slowly

• Produce few or irregular blossoms

• Have poor pollination and fruit set

• Drop fruit early or produce small, misshapen fruit

In short: the tree may grow leaves and survive, but fruit production will be poor because it did not receive enough winter chilling to trigger normal flowering and fruiting.

Apples for the Coastal South

Many traditional apple varieties require long, cold winters and will not perform well here. However, some apples are specifically adapted to warmer climates.

Two excellent low-chill apples for this region are:

Anna Apple
Requires about 200–300 chill hours and produces crisp, sweet fruit. It is one of the best apples for warm climates.

Dorsett Golden Apple
Requires about 250–300 chill hours and produces a mild, sweet apple similar to Golden Delicious. It also serves as a pollinator for Anna.

Fugi & Gala may do ok in colder winters for us here, but are listed at about 600-700.  I have had light fruit set, but they are smaller than normal.

Ones that won’t produce as well:  Red Delicious, Golden Delicious, and Granny Smith may grow well, but may not produce well due to the high chill hours of 700-900 per year.

Peaches for Southeast Georgia

Peach trees also require winter chill, but wide varieties are well-suited to the Southeast.

Two reliable peaches for this region include:

Red Haven Peach
A popular peach variety requiring roughly 400-500 chill hours. It produces flavorful, freestone fruit and is widely grown across much of Georgia.

Belle of Georgia Peach
Requires about 800 chill hours and produces large, white-fleshed peaches with excellent flavor.  This has performed reasonably well at Blackcreek Nursery despite the higher chill-hour requirements.  Possibly because we are a bit colder than areas nearer the coast.

These varieties perform well in much of Georgia, where winter chill is typically sufficient for good fruit production.

Choosing the Right Tree

Matching fruit trees to the correct chill hour range helps ensure:

• Reliable blooming

• Good fruit production

• Healthy, vigorous trees

With the right varieties, apples and peaches can be very productive in Southeast Georgia gardens.