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Blueberries and blackberries grow well together because they share nearly identical soil, water, and sunlight needs.
If you’ve been wondering whether blueberries and blackberries can grow well together, the short answer is yes, they can.
Both are perennial berry plants that thrive in full sun and acidic soil, so planting them side by side is a match that makes a lot of sense.
In this post, we’ll look at why blueberries and blackberries grow well together, how to plant them so they flourish, and a few things to watch out for.
Let’s dig in.
Why Blueberries and Blackberries Grow Well Together
Blueberries and blackberries grow well together for several solid reasons.
1. They Love the Same Soil
The biggest reason blueberries and blackberries grow well together is their shared love for acidic soil.
Blueberries are famously picky about pH, wanting a range between 4.5 and 5.5.
Blackberries are more flexible but still perform best in slightly acidic soil around 5.5 to 6.5.
That overlap means one soil preparation can keep both plants happy.
2. They Share the Same Sun and Water Needs
Both plants want at least six to eight hours of direct sunlight a day.
Neither one enjoys soggy roots, but both need consistent moisture, especially while fruiting.
So when you water one, you’re basically watering the other.
3. Their Root Systems Don’t Compete
Blueberries have shallow, fibrous roots that spread just below the surface.
Blackberries send out deeper, more aggressive roots and canes.
Because they feed at different depths, blueberries and blackberries grow well together without stealing each other’s nutrients.
4. They Ripen at Different Times
Blueberries usually ripen in early to midsummer.
Blackberries tend to follow in mid to late summer.
That staggered harvest means you get berries from the same patch for months instead of a few short weeks.
How to Plant Blueberries and Blackberries Together
Getting blueberries and blackberries to grow well together starts with good planning.
1. Test and Amend Your Soil First
Before planting anything, test your soil’s pH.
If it’s too alkaline, work in elemental sulfur or plenty of peat moss to bring it down.
Aim for a pH around 5.0 to 5.5 so both plants can thrive.
2. Give Them Enough Space
Blueberries and blackberries grow well together, but they still need room.
Space blueberry bushes about four to five feet apart.
Give blackberries six to eight feet, since their canes spread wide.
3. Mind the Blackberry Canes
Blackberries grow aggressively and can shade out smaller blueberry bushes.
Plant blackberries on the sunny side or use a trellis to keep canes contained.
That way, blueberries and blackberries grow well together without one crowding the other.
4. Mulch Both Plants Well
A layer of pine bark or pine needles helps hold moisture and keeps soil acidic.
Mulch also keeps blackberry roots cool and blueberry roots from drying out.
Just keep mulch a few inches away from the stems to prevent rot.
Potential Issues to Watch For
Even though blueberries and blackberries grow well together, a few problems can pop up.
1. Blackberries Can Take Over
Blackberry canes spread fast and can shade young blueberry bushes.
Prune canes regularly and train them to a trellis to keep things balanced.
2. Birds Love Both
Birds will happily raid blueberries and blackberries alike.
Netting your bushes during ripening season saves more fruit for you.
3. Different Fertilizer Needs
Blueberries need acidic fertilizers like ammonium sulfate.
Blackberries prefer a more balanced blend.
Feed them separately so blueberries and blackberries grow well together without one getting too much of a nutrient it doesn’t need.
4. Watch for Shared Pests
Aphids, spider mites, and spotted wing drosophila can attack both plants.
Keep an eye on leaves and fruit so you can catch problems early.
So, Do Blueberries and Blackberries Grow Well Together?
Blueberries and blackberries grow well together because they share the same soil, sun, and water preferences.
Their root systems don’t compete, and their harvest seasons overlap just enough to keep your kitchen stocked with fresh berries.
With a little planning around spacing, pruning, and feeding, blueberries and blackberries grow well together in the same garden bed.
So go ahead and plant them side by side this season.
You’ll be glad you did.