Recently a friend got a large order of prime ark 45 and prime ark freedom. He ordered 2 dozen plants for me at the same time. The reason I’m interested in these particular berries is to extend my season because my main crop of blackberries is ripe in July. This will give an earlier spring crop and a later fall crop. Is anyone growing these blackberries or do you have another plan to extend your season? My friend ordered me a dozen of each type.
Stark bros says this about the prime ark 45 “Early and heavy producer. Erect canes make it easy to pick these firm, midnight-black berries. Fruit stores well for longer-term enjoyment. Plants are disease-resistant and cold-hardy. First-year canes begin ripening in mid-July, while second-year canes bear heaviest crops in June. Both continue to fruit until frost. Everbearing primocane. Early season. Self-pollinating. May be covered by U.S.P.P. #22449 or other patents. APF-45 cultivar.”
Nourse said this about Prime ark freedom "Prime Ark® Freedom is the fourth release from Dr. John Clark and University of Arkansas primocane breeding program. For floricane fruiting, it has very large fruits, larger than Natchez, with excellent flavor. It also ripens exceptionally early on floricanes (9-11 days earlier than Natchez). Fruit size and total yield is similar to the Prime Ark® 45. Freedom is a great choice for local commercial distribution and home gardens. It is not recommended for the shipping market. Prime Ark® Freedom requires “tipping” to achieve the highest yields and performance.
U.S. Plant Patent #26,990
Berry Size: Large/VL
Best in Zones: 6 - 9
We recommend a soil pH level of 6.5 - 6.8 for blackberry plants.
This Fall Bearing Blackberry Plant bears some fruit the first fall of planting year, and either summers or falls after that depending on how it is managed.
Price includes a royalty or usage fee. Patent laws or license contracts prohibit propagation of the variety for resale or trade.
Fall-bearing or primocane blackberries respond favorably to tipping! As the primocanes reach 12-15” in height, break or cut ¾-1” off the tip of each cane to force branching. Tip again when branches reach 30”. This process stimulates earlier fruit development, keeps plant height in check, and increases yield."