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 essential
Rootstock: Marianna 2624
Hardiness: Hardy to USDA Zone 5
Bearing Age: 1–3 years
Size at Maturity: Typically 12–15 ft tall and wide (maintained smaller with pruning)
Bloom Time: Late spring (later than most apricots)
Ripening Time: Mid-summer
Pollination Requirements: Self-fertile
Pests & 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
