4-6' x 4-6'. Non-everbearing, 'Triple Crown' is a new thornless, very cold hardy blackberry that bears large, flavorful fruit in mid to late summer. Flowering on last year's stems, provide 'Triple Crown' with a trellis or fence for support. In late fall, prune out the fruiting branches to make room for next year's fruit. This is a superior choice for all parts of the country, including warm winter areas with little or no frost. Plants fruit lightly their second growing season and come into full production by the third year. The plants are productive for at least 15 years. *Catalog/Website only.* Zones 5-10. Zone 5-10