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Prime-Jim® Blackberry

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Enjoy months of berries. You’ll get crop after crop of large, delicious berries, even in the canes' first year. Slightly more vigorous than Prime-Jan® with larger second-year canes. 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. Cold-hardy. Self-pollinating. May be covered by U.S.P.P. #16989 or other patents. APF-12 cultivar.


Bloom Color Pink, White
Fruit Color Black
Fruit Size Extra Large
Pollination Self-pollinating
Ripens/Harvest First Year Canes Mid July, Second Year Canes June
Shade/Sun Full Sun
Soil Composition Loamy
Soil Moisture Well Drained
Soil pH Level 6.0 - 6.8
Taste Sweet
Texture Firm
Years to Bear 1 - 2
Zone Range 4 - 8

Zone Compatibility

This Variety's Zone Range 4 - 8
My Hardiness Zone ?
The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatability range of this variety before ordering.

Recommended Pollinators

This variety is self pollinating.

In many cases, you may still want to plant pollinating partners to increase the size of your crops, but with self-pollinating varieties doing so is optional. You'll get fruit with only one plant!

Tools & Supplies

Having the proper tools and supplies when growing your own can make the difference between a good harvest and a great harvest! Here's a list that our experts recommend for this variety.


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Customer Reviews

3.5 / 5.0
2 Reviews
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1 Star
2 out of 3 survived becuase the landscaper is stupid.
I had 3 planted in April 2015. The landscaper for the apartment complex cut the 3 bushes down 3 times last year. I ringed them with stone and they grew back in the fall. I was able to get 2 to survive through the winter. Growing hard and heavy right now.
April 12, 2016
1 year ago
Ok Producer, But Poor on Flavor
I was excited about these, but after growing them for a few years, I would not recommend them, except as a backup crop in case abnormal weather zaps all your other varieties. Fruits are good size, but with a VERY short window of ripeness—they remain hard while fully black for a few days, and the sweetness doesn't start to develop until they're nearly mushy, at which point the texture is bad, and there's also an unpleasant "gritty" feeling to them. I hope Stark Bros. discontinued these based on poor feedback, this variety isn't worth the patent!
March 25, 2016
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