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Trailing blackberries can be grown successfully if you understand their unique vining habit and give them proper support.
Unlike upright blackberry varieties that stand on their own, trailing blackberries produce long, flexible canes that need a trellis or wire system to climb on.
If you’ve been wondering how to grow trailing blackberries in your backyard, the good news is that they’re quite rewarding once established.
In this post, we’ll walk through how to grow trailing blackberries step by step so you can enjoy a bountiful harvest.
Let’s dig in.
How to Grow Trailing Blackberries: The Basics
Growing trailing blackberries starts with understanding what makes them different from other brambles.
Here’s what you need to know before you plant.
1. Choose the Right Variety
When learning how to grow trailing blackberries, variety selection matters a lot.
Popular trailing types include Marionberry, Boysenberry, Loganberry, and Thornless Evergreen.
Each has its own flavor profile, ripening time, and cane behavior.
If you’re a beginner grower, thornless varieties make trailing blackberries easier to handle during pruning and harvest.
2. Pick the Right Spot
Trailing blackberries need full sun for the best fruit production.
A location with at least six to eight hours of direct sunlight daily is ideal for growing trailing blackberries.
They also need well-drained soil that’s rich in organic matter.
Avoid spots where water pools after rain because trailing blackberries hate soggy roots.
3. Prepare the Soil
Before planting trailing blackberries, amend the soil with compost or aged manure.
The goal is loose, fertile ground with a pH between 5.5 and 6.5.
Good soil preparation gives trailing blackberries a strong start and healthier canes.
Planting Trailing Blackberries the Right Way
Once your site is ready, planting trailing blackberries is straightforward.
Timing and spacing are the two biggest factors here.
1. When to Plant
The best time to plant trailing blackberries is in early spring or late fall.
Spring planting lets trailing blackberries settle in before summer heat arrives.
Fall planting works well in mild climates where the ground doesn’t freeze hard.
2. How Far Apart to Space Them
Space trailing blackberries about four to six feet apart in rows.
Leave eight to ten feet between rows so you have room to walk and harvest.
Crowded trailing blackberries are harder to prune and more prone to disease.
3. Set Up Your Trellis First
Because trailing blackberries sprawl, install a trellis before or right after planting.
A simple two-wire trellis with posts every fifteen to twenty feet works great.
This support system keeps trailing blackberries off the ground and makes picking much easier.
Caring for Trailing Blackberries
Learning how to grow trailing blackberries isn’t just about planting.
Ongoing care is what keeps your plants productive year after year.
1. Watering
Trailing blackberries need about one to two inches of water per week.
Deep watering encourages strong roots, especially during fruit development.
Drip irrigation is a great option because it keeps the foliage dry and reduces disease.
2. Fertilizing
Feed trailing blackberries in early spring before new growth kicks in.
A balanced fertilizer or compost top-dressing keeps trailing blackberries vigorous.
Don’t overdo nitrogen, though, or you’ll get lots of leaves and few berries.
3. Pruning Trailing Blackberries
Pruning is the most important skill for growing trailing blackberries well.
Trailing blackberries produce fruit on second-year canes called floricanes.
After harvest, cut those spent floricanes to the ground.
Then train the new first-year canes, called primocanes, onto the trellis for next season.
This cycle keeps trailing blackberries productive and manageable.
4. Mulching and Weed Control
Spread a layer of mulch around your trailing blackberries to retain moisture.
Mulch also suppresses weeds that compete for nutrients.
Keep the mulch a few inches away from the crowns to prevent rot.
5. Pest and Disease Watch
Trailing blackberries can face issues like spider mites, aphids, and cane borers.
Good airflow and proper spacing help prevent fungal problems like rust and anthracnose.
Inspect trailing blackberries regularly so you catch problems early.
Harvesting Trailing Blackberries
Knowing when to pick is a big part of how to grow trailing blackberries successfully.
Trailing blackberries are ready when they’re deep in color and pull easily from the cane.
Ripe berries are sweet and firm, not tart or mushy.
Harvest every few days during peak season for the best flavor.
Handle trailing blackberries gently because they bruise easily once picked.
So, How Do You Grow Trailing Blackberries?
Growing trailing blackberries comes down to giving them full sun, well-drained soil, and a sturdy trellis.
Plant them at the right time, space them properly, and stay on top of watering and pruning.
With a little patience, trailing blackberries will reward you with sweet, juicy fruit season after season.
Hope this guide on how to grow trailing blackberries helps you get your berry patch thriving.