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Growing triple crown blackberries is one of the most rewarding things you can do in your backyard garden.
These thornless beauties produce big, sweet berries, and once you know how to grow triple crown blackberries the right way, you’ll be harvesting bowl after bowl every summer.
If you’ve been wondering how to grow triple crown blackberries successfully, you’re in the right place.
In this post, we’ll walk through how to grow triple crown blackberries step by step, from planting to pruning to picking.
Let’s dig in.
How to Grow Triple Crown Blackberries: The Basics
Learning how to grow triple crown blackberries starts with understanding what this plant actually needs.
Triple Crown is a semi-erect blackberry variety, which means it grows long canes that benefit from a little support.
It’s also thornless, which makes growing triple crown blackberries way more enjoyable than wrestling with thorny varieties.
Here’s what you need to know when you grow triple crown blackberries at home:
1. Pick the Right Spot
Triple Crown blackberries grow best in full sun, so choose a spot that gets at least six to eight hours of direct light daily.
Good airflow matters too when you grow triple crown blackberries, since it helps prevent disease.
Avoid low spots where water pools, because blackberry roots hate sitting in soggy soil.
2. Get the Soil Right
When you grow triple crown blackberries, aim for well-draining soil rich in organic matter.
A pH between 5.5 and 6.5 is ideal for growing triple crown blackberries.
Mix in compost before planting, and if your soil is heavy clay, plant in a raised bed to help your triple crown blackberries thrive.
3. Plant at the Right Time
The best time to grow triple crown blackberries is in early spring or late fall, when the plant is dormant.
Space plants about 4 to 6 feet apart, since triple crown blackberries spread and need room to breathe.
Set the crown about an inch below the soil surface and water deeply after planting.
Caring for Triple Crown Blackberries as They Grow
Once your plants are in the ground, how you care for them determines how well triple crown blackberries produce.
Here’s how to keep them happy:
1. Water Consistently
Triple Crown blackberries need about an inch of water per week, especially during fruiting season.
Deep, consistent watering helps the berries plump up, so don’t let the soil dry out completely.
That said, good drainage still matters — soggy roots will kill your triple crown blackberries faster than drought.
2. Fertilize Smart
Feed your plants in early spring with a balanced fertilizer to support new growth.
If you want bigger harvests from your triple crown blackberries, add a nitrogen boost before the canes start flowering.
Just don’t overdo it, since too much nitrogen gives you leafy canes and very few berries.
3. Train the Canes
Since triple crown blackberries grow semi-erect canes, a simple trellis makes a huge difference.
A two-wire trellis about 4 to 5 feet tall works great.
Tie the canes loosely as they grow and your triple crown blackberries will be easier to prune, pick, and manage.
4. Mulch and Weed
Spread a layer of mulch around your plants to hold moisture and keep weeds down.
Weeds compete for nutrients, so staying on top of them helps your triple crown blackberries focus energy on fruit.
Pruning Triple Crown Blackberries
Pruning is honestly where most people mess up when they grow triple crown blackberries.
Here’s the simple version:
1. Know Your Canes
Triple Crown blackberries produce fruit on second-year canes, called floricanes.
First-year canes, called primocanes, just grow and store energy.
Understanding this cycle is key to keeping your triple crown blackberries productive year after year.
2. Cut Floricanes After Harvest
Once a cane finishes fruiting, cut it to the ground.
This makes room for new canes and keeps your triple crown blackberries from turning into a tangled mess.
3. Tip Primocanes in Summer
Pinching the tips of new canes encourages side branches, which means more berries next year.
Do this when canes reach about 4 feet tall and your triple crown blackberries will reward you with heavier yields.
4. Remove Weak Canes
Thin out spindly or damaged canes so the plant’s energy goes to the strongest ones.
Healthy canes mean healthier triple crown blackberries.
Harvesting and Enjoying Your Triple Crown Blackberries
Triple Crown blackberries usually ripen from mid-summer into late summer, depending on your climate.
Berries are ready when they’re deep black and pull off the cane with almost no effort.
If you have to tug, they’re not ready yet.
Pick every couple of days during peak season, and refrigerate what you don’t eat right away.
You can also freeze them, bake with them, or turn them into jam.
Honestly, the flavor of homegrown triple crown blackberries beats anything from the store.
So, How Do You Grow Triple Crown Blackberries?
You grow triple crown blackberries by giving them full sun, well-drained soil, consistent water, and a simple trellis for support.
Prune them properly each year, feed them lightly, and mulch to keep weeds away.
Learning how to grow triple crown blackberries isn’t complicated, and the payoff is huge — sweet, juicy berries every summer.
Follow these steps and your triple crown blackberries will keep producing for years to come.