Apricot tree care

*Prunus armeniaca* -- the apricot -- is a stone fruit native to central Asia and widely cultivated across temperate climates. It is straightforward to grow where summers are dry (California, the Pacific Northwest, mountain west) and genuinely difficult in humid-summer climates east of the Rockies,.

Prunus armeniaca — the apricot — is a stone fruit native to central Asia and widely cultivated across temperate climates. It is straightforward to grow where summers are dry (California, the Pacific Northwest, mountain west) and genuinely difficult in humid-summer climates east of the Rockies, where brown rot, bacterial spot, and — most critically — early bloom exposure to late spring frosts conspire to eliminate the crop in many years.

The fundamental challenge with apricots in zones 5-7 east of the Rockies is that the tree blooms earlier than almost any other fruit tree — weeks before apples and pears — and late frosts hit after bloom in many years. Per Penn State Extension, crop failures from late frost are a normal expectation in zones 5-7, not an unusual event.

I don't grow apricots at my Long Island plot. This guide is sourced from Penn State, Cornell, and Clemson Extension.

USDA hardiness zones

Per Penn State Extension, apricots are hardy in USDA zones 5-9. The tree itself survives zone 5 winters well. The problem is not winter cold but late spring frosts at bloom — the flowers, open buds, and young fruit are all damaged at 28-30°F.

Chilling hour requirements: most varieties need 700-900 hours below 45°F. In zones 8-9 with mild winters, choose low-chill varieties.