Blackberries

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UNSPECIFIED Mar 17, 2022

Am wondering if Doyle's Blackberries will grow in northern Minnesota zone 3.

Post #10532928
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ZilyZily Castro Valley, CA Mar 17, 2022

I hope this info helps.
The Doyle's Thornless Blackberry site itself says:
"Doyle's Thornless Blackberry™ bushes produce 10–20 gallons. These plants also thrive easily in frost zones 3-10 and have survived temperatures as frigid as -25 degrees."
and
"The thornless blackberries have a wide range. Blackberries do require some seasonality (about 250 chill hours) so a tropical climate is not for these. Our thornless berries go through zero digits with ease, and have survived -25. We do recommend covering the plant with 6 mil clear or white plastic when temperatrues go below minus 20."
https://www.doyleblackberry.com/planting-doyles-thornless-blackberries

According to this article "Doyle’s Thornless blackberries flourish in U.S. Department of Agriculture plant hardiness zones 3 through 10.".
https://homeguides.sfgate.com/grow-doyles-blackberries-pole-68739.html

Plantfiles has it growing in zone 3 too. There might be some 1st hand info in the comments for you.
https://davesgarden.com/guides/pf/go/78240/#b

Info on how to protect them in Minnesota
https://www.gardenguides.com/102951-grow-blackberry-bushes-minnesota.html

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