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Yes, you can plant blueberries next to blackberries, and doing so can actually work out beautifully when you set things up the right way.
Both are perennial fruiting plants that come back year after year, so once they’re established, you get to enjoy harvests without replanting.
The catch is that blueberries and blackberries have very different needs when it comes to soil, water, and spacing.
If you can plant blueberries next to blackberries while respecting those differences, you’ll have two productive berry patches side by side.
In this post, we’ll walk through whether you can plant blueberries next to blackberries, what each plant needs, and how to keep both of them thriving.
Let’s dig in.
Can You Plant Blueberries Next to Blackberries?
You can plant blueberries next to blackberries, and many home gardeners do exactly that.
There’s no natural rivalry between the two plants that would stop them from growing near each other.
Blueberries are shallow-rooted shrubs that prefer acidic soil, while blackberries are vigorous cane berries that are far more adaptable.
The main reason people hesitate to plant blueberries next to blackberries is that their soil preferences pull in opposite directions.
Blueberries want soil with a pH between 4.5 and 5.5.
Blackberries do best in soil with a pH between 5.5 and 7.0.
That gap is real, but it’s manageable with a little planning.
So yes, you can plant blueberries next to blackberries as long as you treat each plant as its own little zone.
1. They Don’t Compete Aggressively
Blueberries and blackberries have different root systems, so they don’t fight each other for every drop of water and every nutrient.
Blueberry roots are fine, shallow, and fibrous, spreading just below the surface.
Blackberry roots are deeper and more aggressive, but they mostly spread through canes and suckers rather than choking out nearby shrubs.
That difference means you can plant blueberries next to blackberries without one plant starving the other.
2. They Share Similar Sun and Water Needs
Both plants love full sun, so if you have a spot that gets six to eight hours of direct light, you’re set.
They also both want consistent moisture, especially while fruit is developing.
That shared love of sun and steady watering makes it easier to plant blueberries next to blackberries in the same garden bed.
3. Pollinators and Pest Benefits
When you plant blueberries next to blackberries, you create a small ecosystem that attracts bees and other pollinators.
More pollinators buzzing around means better fruit set for both plants.
The dense blackberry canes can also act as a bit of a windbreak, sheltering the more delicate blueberry bushes.
Challenges of Planting Blueberries Next to Blackberries
Planting blueberries next to blackberries isn’t without a few hurdles, and knowing them ahead of time saves you headaches later.
1. Conflicting Soil pH
This is the big one.
If you plant blueberries next to blackberries in the same unamended soil, one of them will struggle.
Blueberries in neutral or alkaline soil turn yellow, grow slowly, and produce little fruit.
Blackberries in very acidic soil can also underperform over time.
The fix is to create separate planting zones with their own soil blends.
2. Spacing and Airflow
Blackberries grow long, thorny canes that can sprawl several feet in every direction.
If you plant blueberries next to blackberries too closely, the canes will shade and crowd your blueberry bushes.
Leave at least four to six feet between them so air moves freely and both plants get their share of sunlight.
3. Different Pruning Schedules
Blueberries need light annual pruning to remove old wood and keep the bush open.
Blackberries need more aggressive pruning because they fruit on canes that only live two years.
When you plant blueberries next to blackberries, keep track of which plant gets cut when so you don’t accidentally damage the wrong one.
How to Plant Blueberries Next to Blackberries the Right Way
The secret to a happy pairing is treating the two plants as neighbors with separate addresses.
1. Create Separate Soil Zones
Dig a wide hole for your blueberry bush and backfill it with a mix of peat moss and pine bark to lower the pH.
For blackberries, use native soil amended with compost, which keeps things closer to neutral.
A physical barrier like a buried board between the two zones helps keep the soils from blending too much.
2. Mulch Each Plant Differently
Blueberries love an acidic mulch like pine needles or pine bark.
Blackberries are happy with straw, wood chips, or compost.
Mulching each plant with the right material slowly feeds the soil the way each one likes it.
3. Water Deeply and Consistently
Both plants produce the juiciest fruit when they never dry out completely.
A drip line running past both plants keeps moisture even without soaking the leaves.
4. Watch for Shared Pests
Aphids, spider mites, and spotted wing drosophila can bother both plants.
When you plant blueberries next to blackberries, scout both regularly so a problem on one doesn’t spread silently to the other.
5. Give Them Room to Mature
Blueberry bushes eventually spread three to five feet wide.
Blackberry canes can reach six feet or more if left untamed.
Plan your spacing based on their mature size, not the tiny plants you bring home from the nursery.
So, Can You Plant Blueberries Next to Blackberries?
You can plant blueberries next to blackberries, and with the right soil prep and spacing, both will reward you with years of harvests.
The key is respecting their differences in soil pH while taking advantage of their shared love of sun and water.
Set up separate soil zones, mulch each plant correctly, and give them room to breathe.
Do that, and you’ll be glad you decided to plant blueberries next to blackberries in your garden.