Apricot Tree (Harglow)

Description

Harglow apricot is considered one of the most reliable apricot varieties for cold-winter and frost-prone regions. Developed in Canada as part of the Har-series breeding program, it was selected specifically for exceptional flower bud hardiness and a notably late bloom—two traits that dramatically improve apricot success where spring frosts are common.

The fruit is medium to large, bright orange with a mild blush and classic apricot flavor that balances sweetness with gentle acidity. While Harglow is not the earliest apricot to ripen, its delayed bloom timing greatly increases the likelihood of a full crop in challenging climates, making it a favorite among growers who have struggled with apricots in the past.

Overview

• Late-blooming apricot with outstanding frost resistance.
• Medium-large fruit with classic apricot flavor.
• Developed for cold and variable spring climates.
• Reliable producer compared to many apricot varieties.
• Self-fertile.

Growing Details

Latin Name: Prunus armeniaca ’Harglow’Site and Soil: 1/2 day to full day of sun; well-drained soil essentialRootstock: Marianna 2624Hardiness: USDA Zones 5–8Bearing Age: 1–3 yearsSize at Maturity: Typically 12–15 ft tall and wide (maintained smaller with pruning)Bloom Time: Late spring (later than most apricots)Ripening Time: Mid-summerPollination Requirements: Self-fertilePests & Diseases: Improved resistance compared to many apricots; good airflow and drainage reduce issues

Additional Notes

• Grower’s Insight: Harglow is often considered one of the safest apricot choices for frost-prone sites due to its exceptionally late bloom.
• Regional Insight: Harglow excels in the Pacific Northwest, Upper Midwest, and northern growing regions where spring frosts routinely challenge apricot production.
• Later bloom timing makes site selection especially important—avoid warm microclimates that encourage early growth.
• Best suited for fresh eating and preserves where reliability matters more than earliest harvest.
• Explore more apricot varieties in our collection: Apricot Trees