Blackberry
Can I Grow Triple Crown?
Triple Crown earns its name with three crowning virtues — thornless canes, exceptional flavor, and massive yields. The large, glossy berries have a complex sweet-tart taste that's superior to most thorny varieties.
Growing Requirements
Chill Hours
300
Hardiness Zones
5-6-7-8-9
Harvest
July to August
Results
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Pruning dates, harvests, spray schedules, what worked. The gardeners who get the most from their trees are the ones who kept records.
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About Triple Crown
Triple Crown earns its name with three crowning virtues — thornless canes, exceptional flavor, and massive yields. The large, glossy berries have a complex sweet-tart taste that's superior to most thorny varieties.
Triple Crown requires 300 chill hours — the number of hours between 32°F and 45°F during winter dormancy. Without enough chill, the tree may fail to flower properly or produce poor fruit.
⚠️ Common Challenges
Semi-erect canes need trellising; late ripening means short harvest window before frost in northern areas; susceptible to spotted wing drosophila.
❌ Common Misconception
Will Triple Crown produce more fruit in colder climates?
Not necessarily. Triple Crown only needs 300 chill hours. Planting in very cold zones (4 or colder) risks winter damage without improving fruit production. The ideal zones are 5-9 where the tree gets enough chill without excessive cold stress.
If you plant it, write it down.
Variety, rootstock, planting date — and every pruning and harvest after that. Future you will thank you.
Free for up to 30 plants. No card needed.
Other Blackberry Varieties
Chill hour data from ERA5 reanalysis (Copernicus/ECMWF). Variety information compiled from university extension services.