How To Grow Trailing Blackberries

Growing trailing blackberries starts with understanding that these are vining plants that need a sturdy trellis and a sunny spot to thrive.
 
If you’ve been wondering how to grow trailing blackberries, the good news is that they’re actually pretty forgiving once they get established.
 
Trailing blackberries, also called dewberries, are different from the upright varieties because their canes sprawl along the ground instead of standing up on their own.
 
That means you’ll need to provide some kind of support system to keep them off the ground and make harvesting easier.
 
In this post, we’ll walk through how to grow trailing blackberries step by step, from choosing the right spot to pruning and harvesting.
 
Let’s dig in and get your trailing blackberries growing strong.
 

How to Grow Trailing Blackberries: The Basics

Learning how to grow trailing blackberries comes down to three main things: sun, soil, and support.
 
Get those right and the rest is just maintenance.
 

1. Pick a Sunny Spot

Trailing blackberries need at least six to eight hours of direct sunlight each day.
 
The more sun they get, the sweeter your berries will be.
 
Avoid planting them in low spots where frost can settle or where water tends to pool after rain.
 

2. Get the Soil Right

These berries like well-drained soil with a pH between 5.5 and 6.5.
 
If your soil is heavy clay, mix in some compost or aged manure to improve drainage.
 
Good drainage matters because trailing blackberries hate sitting in soggy ground.
 

3. Set Up a Trellis System

Since trailing blackberries don’t stand up on their own, you’ll need a trellis.
 
A simple T-trellis with wires strung between posts works great.
 
Space your posts about 15 to 20 feet apart and run three or four wires at different heights.
 
As the canes grow, you’ll train them along the wires to keep them tidy and manageable.
 

Planting Trailing Blackberries the Right Way

Now that you know the setup, here’s how to actually get trailing blackberries in the ground.
 

1. When to Plant

The best time to plant trailing blackberries is in early spring or late fall.
 
Spring planting gives them a full season to establish roots before winter.
 
Fall planting works well in milder climates where the ground doesn’t freeze solid.
 

2. Spacing Matters

Plant your trailing blackberries about 4 to 6 feet apart in rows.
 
Leave 8 to 10 feet between rows so you have room to walk and harvest.
 
Crowding them too close invites disease and makes picking a pain.
 

3. Dig and Plant

Dig a hole twice as wide as the root ball and just as deep.
 
Set the plant in so the crown sits right at soil level.
 
Backfill with soil, press down gently, and water thoroughly.
 
Add a layer of mulch to retain moisture and keep weeds down.
 

Caring for Trailing Blackberries

Once your trailing blackberries are in the ground, the real work begins.
 
Here’s what keeps them healthy and productive.
 

1. Watering Wisely

Trailing blackberries need about an inch of water per week.
 
During hot, dry spells, you might need to water twice a week.
 
Drip irrigation is ideal because it keeps the foliage dry and reduces disease.
 

2. Fertilizing

Feed your trailing blackberries in early spring with a balanced fertilizer.
 
Avoid too much nitrogen, which encourages leafy growth at the expense of fruit.
 
A soil test can tell you exactly what your plants need.
 

3. Pruning Trailing Blackberries

Pruning is probably the most important part of how to grow trailing blackberries successfully.
 
These plants produce fruit on second-year canes, called floricanes.
 
After harvest, cut those floricanes to the ground.
 
In late winter, trim the new canes back to about 5 or 6 feet and tie them to your trellis.
 
This keeps the plant productive and prevents it from becoming a tangled mess.
 

4. Managing Pests and Diseases

Trailing blackberries can attract aphids, spider mites, and birds.
 
Row covers or netting help with birds, and insecticidal soap handles most small pests.
 
Watch for signs of fungal diseases like rust or botrytis, especially in humid weather.
 
Good air circulation and proper spacing are your best defenses.
 

Harvesting Your Trailing Blackberries

Most trailing blackberry varieties ripen from midsummer into early fall, depending on where you live.
 
Berries are ready when they pull off the vine easily and taste sweet.
 
Pick them every few days during peak season to keep the plant producing.
 
Handle them gently because ripe trailing blackberries are soft and perish quickly.
 
Eat them fresh, freeze them, or turn them into jam, pie, or cobbler.
 

So, How to Grow Trailing Blackberries?

Growing trailing blackberries is really about giving them sun, good soil, and solid support.
 
Plant them in spring or fall, water and feed them consistently, and stay on top of pruning.
 
Once you get the rhythm down, trailing blackberries reward you with baskets of sweet fruit year after year.
 
Whether you’re growing trailing blackberries for fresh snacking or freezing for winter, the effort pays off big time.
 
Now you know exactly how to grow trailing blackberries, so grab a shovel and get started.