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Potted Plants

Columbia Giant Thornless Blackberry

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Original price $15.99 - Original price $15.99
Original price
$15.99 - $15.99
Current price $15.99
SKU E528

Rubus subg. Rubus Watson 'Columbia Giant'

When we say Columbia Giant, we're not kidding! Enjoy bountiful crops of the largest-ever, thornless blackberries. The mild-flavored fruit is firm and easy to pick, conical in shape, and sweet - with a pleasing touch of tartness and just a hint of raspberry flavor. The plants are trailing and vigorous, and would benefit from trellis support.

It is a new introduction from Oregon State University and the USDA, proven to thrive and be hardy in the Pacific Northwest and many other areas of the nation. Ripens early summer - early July here in the PNW. Plant patent 28,369. USDA Zones 6-9.

Size: 4" Pot


Ask a Question
  • Is it full sun or can take part shade or full shade

    For best berries it needs full sun. It is not shade tolerant and cannot live in full shade.

  • How early should I plant these in zone 6?

    As soon as the ground is no longer frozen.

  • Do I need a pollinator with the Columbia Giant blackberry?

    Not at all. As with most blackberries, these are self fertile.

  • best time to plant zone 9


Customer Reviews

Based on 7 reviews

Buy with confidence! I'm looking forward to these healthy and thriving little 4"*4" potted starts. They arrived well packaged and as expected. They immediately started to develop leaves and now branches in just a couple short weeks.


Showed up as just a stick, which I expected. With in a week it started coming to life and has been growing a little bit everyday. Couldn't ask for more. Also no bugs which is great!

Velva A.

I love everything I’ve ordered from Raintree. My blackberries arrived healthy and ready to plant. Thank you

Gina C.
Beautiful healthy plants

Thankyou so much !! The plants arrived quickly and they’re very fresh and healthy looking. I really appreciated it! Can’t wait to plant them in my garden.

Greg K.
an excellent start

The raspberry arrived in excellent condition. I am planting it inside a 27 gallon storage container(with lots of holes for drainage). It is inside a fence, to keep the deer away from it. It is doing well, going to sleep for the winter.