Blackberry Triple Crown (Thornless) is a semi-erect blackberry cultivar bred for gardeners who want vigorous, productive plants without the hazard of thorns. Hardy across zones 5 through 11, these plants grow with impressive vigor, reaching 12 to 15 feet in a single season, and produce berries firm enough to ship and store without damage. The thornless canes make harvesting comfortable and safe, while the fruit works beautifully fresh, frozen, canned, or baked into pies and cobblers. Plants reach full productivity within 2 to 3 years, rewarding patience with years of reliable harvests.
Set your location to see if this variety matches your area
—
—
5-11
?in H x ?in W
—
High
Hover over chart points for details
The fruit arrives pleasantly firm, a trait that sets it apart from softer blackberry varieties and makes it exceptionally practical for anyone who wants to preserve their harvest or share berries with friends without them arriving crushed. The thornless growth habit eliminates the scratches and blood that have kept many gardeners away from blackberries entirely, while the semi-erect growth pattern means you can trellis the canes upward for better air circulation and easier picking. Vigorous barely describes the growth: these vines surge forward with such energy that a single plant can fill a substantial space in one growing season.
Blackberry Triple Crown shines in both the kitchen and the preserving kettle. The firm texture makes it excellent for fresh eating straight from the cane, and those same qualities carry through to freezing, where the berries hold their shape beautifully through the winter months. Canners value it for jams and preserves, while home bakers find the berries substantial enough to anchor pies, cobblers, and compotes without turning to mush during cooking.
No timeline data available yet for this variety.
Transplant bare-root or container-grown Blackberry Triple Crown in early spring before bud break, or in fall after the vines have gone dormant. Choose a location in full sun with well-draining soil. Space plants 4 to 6 feet apart to accommodate the vigorous, semi-erect growth habit. Water thoroughly after planting and maintain consistent moisture throughout the first growing season as the plants establish.
Harvest berries when they turn completely black and yield slightly to gentle pressure, typically mid to late summer depending on your zone. Pick ripe fruit every 2 to 3 days at peak ripeness. The firm texture means berries will hold on the cane for a day or two longer than soft blackberries without dropping, giving you flexibility in harvest timing. Gently twist and lift each berry from the cluster; the thornless canes let you harvest quickly without gloves if you prefer.
Prune Blackberry Triple Crown annually in late winter or early spring before new growth emerges. Remove any canes that are dead, damaged, or weak, keeping only the healthiest, most vigorous stems. Since the vines grow to 12 to 15 feet in a season, train the semi-erect canes onto a trellis or support system and cut back excessively long growth to maintain manageable size. Cut out fruited canes at ground level after harvest to encourage new productive canes for the following year. The thornless nature of these canes makes pruning far less painful than traditional blackberry varieties.
Enter your ZIP code to see a personalized growing calendar for this plant.