How to Prune Thimbleberries in a Few Simple Steps

Do you know how to prune thimbleberries? If you live in the northern part of the US or in Canada, you may have these growing in your backyard. While they aren’t as prolific as raspberries, if taken care of properly, you can get a fair amount of berries. This post contains affiliate links, and I will receive compensation if you make a purchase after clicking on my links.

How to Prune Thimbleberries in a Few Simple Steps

How to Prune Thimbleberries

Thimbleberries are also known as Rubus parviflorus if the flowers are white or Rubus odoratus if the flowers are pink. They are a type of old fashioned, wild raspberry and are a member of the rosacea (rose) family. Bushes grow between six to ten feet high and can grow six to twelve feet wide.

Even with aggressive pruning, ours flourishes every year with very little attention. Because these are a wild variety of berry, you won’t get as many berries from them as a cultivated variety. However, I think they are much more attractive and they are hardier in our zone 4 area. They enjoy moist shady places and often grow along the tree line.

Give them support

Because thimbleberries can grow to about six feet high, it is easiest to keep them trellised or in a contained area to control them. We have them growing in between our wood shed and our garden shed.

Wild foraging flowering raspberry

Regular pruning

Like any bramble type plant, thimbleberries will need regular pruning. I use long handled loppers to reach into the bush when pruning. No worries, thimbleberries do not have thorns. After the end of your second year, you will want to cut down all of the last years canes to about six inches from the base of the plant. You’ll have to repeat this every year.

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Wasp galls

After the leaves fall from the plant in the fall, you will want to examine it for wasp galls (lumps that form on the stem of the thimbleberry). These are egg filled sacs of a parasitic wasp and should be removed and burned to prevent damage to the plant.

Thimbleberry (Rubus odoratus)

Rubus is the name given to bramble plants like raspberries and blackberries. The odoratus part of the name is because the beautiful pink flowers are very fragrant.

Thimbleberry Rubus odoratus

If you were wondering how to prune thimbleberries, that’s really all that there is. The plant will attract hummingbirds to your yard and provide small, delicious berries during the summer.  You should see them flower between June and August depending on how far north you live. If you don’t have room for your own plants, you can try foraging wild ones in the woods.

I have never seen thimbleberry seeds for sale but I have seen thimbleberry plants for sale which you may be able to find locally or on Amazon.

If you’ve enjoyed these tips, you may want to read more of my gardening articles or try adding thimbleberries to your favorite jam recipe.

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Comments

  1. I dont think we have these in the south but I do have blackberries that have to get pruned regularly and the long handled loppers are a must!

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