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Prime-Ark® Blackberry Plant Collection

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  • 4 or more: $34.99 each
Item #134505. Ships in a 3 (Jumbo) Cell Pack.
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Blackberries from June until frost! These everbearing primocane varieties are from the famed University of Arkansas horticulture program. The upright plants feature disease-resistant canes that bear sweet fruits on primocanes first, followed by a second crop on older canes. Proper pollinators are conveniently included so you’ll get an abundance of blackberry flowers and fruit.

Zone Compatibility

This Variety's Zone Range 5 - 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.

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.

Planting & Care

Learn all about how to grow blackberry plants in The Growing Guide. An entire section of our website dedicated to your growing success.

Shipping Information

Estimated Delivery Date

Our Promise of Satisfaction

1 Year Warranty

Every order comes with our promise of satisfaction. If you aren't completely satisfied with your order, let us know within one year for a free one-time replacement or refund.


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Questions & Answers

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Browse 7 questions Browse 7 questions and 20 answers
Why did you choose this?
Stark Bro's Store
Bears fruit twice a season and is drought tolerant.
Melissa M on Mar 27, 2019
Recommended by others
LARRY B on Feb 26, 2019
Bears fruit twice a season and is drought tolerant.
Melissa M on Mar 27, 2019
Wanted to try primocane berries
Ann N on Mar 23, 2019
Recommended by others
LARRY B on Feb 26, 2019
James on Feb 3, 2019
The combination of PrimeArk selections provides high-yielding disease-resistant blackberries which ripen over an extended season, and I'm especially looking forward to some thornless blackberry bushes which don't need to be trellised.
Paula M on May 7, 2018
Heat tolerant as I live in SC and twice the crops for each plant.
Thelma H on Apr 30, 2018
Upright canes, newer varieties
Dave C on Apr 22, 2016
Like disease resistance, cold hardy features. Would prefer thornless, but thought I would compare results of thornless vs varieties with thorns.
Barbara D on Mar 14, 2016
I love blackberries and purchased 3 plants last year that produced berries.
Emil N on Feb 29, 2016
To fill out some bare spots in my blackberry patch and to add variety.
T G on Feb 18, 2016
There is nothing better than watching the faces of your grandkids as they pick and eat fresh blackberries.
Dave on Feb 18, 2016
Wanted to try primocane berries
Ann N on Mar 23, 2019
James on Feb 3, 2019
Hi there! I am assuming these are also thornless? It is not indicated in the description. Thanks
Tommy T on Mar 9, 2016
BEST ANSWER: There are two types is thornless but the other is not (so 3 of 6 without thorns)...the yields were low on the first-year canes so we'll see what happens this spring. The deer have enjoyed them too so we'll see! I may end up planting blueberries instead.
What does Prime Ark mean?
Doug K on Feb 4, 2017
BEST ANSWER: It's a primocane blackberry that was developed at the University of Arkansas - "Prime-Ark."
Does this plant have thorns? I am looking foe good cold tolerance up to 5 with thorns.
Paula V on Dec 10, 2016
BEST ANSWER: Yes it does. Prime-Ark Freedom is thornless.
How long before fruit bearing?
Jennifer W on Jun 20, 2019
BEST ANSWER: Each of plants in this Collection will begin bearing fruit in a year.
How big are the roots on the plants?
Kennneth on Aug 25, 2016
BEST ANSWER: Roots are well developed and the plants were high quality.

Customer Reviews

3.9 / 5.0
16 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Loved by the deer
The deer simply loved them. They ate the ones without thorns, so if you have rats with antlers, get the thorny ones. The two berries I got to eat were great.
September 5, 2017
over 3 years ago
Prime Ark
They seem to be doing Ok. Just disappointed that after I bought and planted that they are no longer compatible for my hardness range.
May 24, 2016
over 4 years ago
Prime Ark Blackberry Collectiion
The blackberries are very large and delicious. The plants were beautiful when they arrived. However, only 3 of the 6 seem to have survived the winter. I'm not sure if this is normal.
May 15, 2016
over 4 years ago
Nice to try both
Im in WI Zone 4. Prime ark 45 did much better than freedom. I had 6 of each but the ark 45 are over my 6'fence. Definately going to order more since the others didnt make it. Not all Starks fault. Think my puppy got to a couple.
November 12, 2016
over 4 years ago
Best Blackberry
I have tried to raise several types of blackberrys in south alabama. I can say with with much praise that the Prime Ark BlackBerry is the best I have ever tried. It is a very productive plant and makes a large bush. I cannot praise this BlackBerry enough.
August 13, 2016
over 5 years ago
Good plants, bad weather.
One of the plants died within the first month of planting, however, the remaining two have done wonderfully. They're now struggling with the long-term wet weather we're having even though I ensured good drainage. Monsoon rains in Oklahoma! Who'd have guessed?!
May 20, 2016
over 4 years ago
The plants we received were amazing. Unfortunately, only 3 of the 6 survived our winter in the Northwoods of Wisconsin. Too bad - we took all the necessary precautions and still no luck.
August 6, 2016
over 4 years ago
I planted them a year ago. They all survived the first winter. I planted 24 plants. So far this spring the majority of them are growing very well. A few are small but alive. I hope to have lots of berries next year because the berries come on one year old stems. E- mail me next year to see how many berries I get!
June 25, 2017
over 3 years ago
Prime Ark Blackberry Collection
Great collection, looks like they will do really good this year if I can keep the deer off of the prime ark freedom. Looking forward to a lot of cobblers. Plan to order more.
May 21, 2017
over 3 years ago
All plants were healthy on arrival and were productive the first year.
May 4, 2019
1 year ago