The jersey variety is 1 of my (DAD'S) life long favorites for over 55 years now, in zone 6-7 they ripen app. July, grow to over 6 feet tall, unless kept pruned back. usually produce a decent crop of medium & large sweet berries with a dusty lite blue color. Best eaten fresh or cereal, can be frozen & canned, but not as well as other varieties. Grows in zones 4 to 7,and parts of zone 3 and 8. They are also more winter hardy than other varieties.