I got a couple four node, thick healthy cuttings of an unknown variety that grows down the road from my house in CT. The bush is never wrapped or buried and lives through the winter. Last year a lot of the varieties planted in the ground in my neighborhood either completely died or died to the ground due to very cold weather, so I would say it's very hardy. The bush gets plenty of fruit but I never got close enough to a ripe one to know what its like, but the leaves resemble Paradiso. I'd be willing to trade cutting for cutting if anyone is interested. Let me know.

Lukie, what zone are you there?

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I'm in zone 6b