Skip to main content

How to propagate blackberries: Easy ways to increase your berry harvest

From root and stem cuttings to suckers and tip layering, here are the best ways to propagate your blackberries

Like many plants, blackberries can be propagated and used to grow new sprouts. These sprouts can be used to increase your collection or given to blackberry-loving friends and family who want to grow their own too! When to propagate will depend on the technique you choose to use, so make sure you follow these methods of propagation as closely as possible for the best chance at success. Without further ado, here's how to propagate blackberries.

Difficulty

Moderate

What You Need

  • Sterilized scissors or a sharp, sterilized knife

  • Peat and sand mix

  • Well-draining soil

  • Refrigerator or other cold storage

  • Clear plastic wrap

  • Small hand shovel

  • Bobby pins

Blackberries ripening on the bush
adonyig/Pixabay

How to propagate from root cuttings

One of the most common plant propagation methods works for blackberries, too. Propagating blackberries from cuttings is fairly straightforward and can be done with either stem or root cuttings, depending on your long-term goal.

Step 1: To take a root cutting, use a pair of sterilized scissors or a sharp, sterilized knife to take a cutting between 3 and 6 inches. Use straight cuts close to the crown of the plant and angled cuts farther away. Only take cuttings during the plant's dormant period in the fall.

Step 2: Bundle the root cuttings together, with the straight cuts on the same side.

Step 3: Place the root cutting bundle or bundles into cold storage (such as a refrigerator) for approximately three weeks.

Step 4: After the storage period, lay the cuttings out, 2 to 3 inches apart, on a peat and sand mixture and cover them lightly with soil.

Step 5: Cover the cuttings with clear plastic wrap to protect them, but be sure to leave enough room so that they aren't smothered.

Step 6: When your new sprouts appear and take root, plant the new blackberry plants in your garden.

Red blackberries ripening on vine
Loris Tissino/Unsplash

How to propagate from stem cuttings

If you’re looking to propagate many blackberries at once, stem cuttings are the best option for you.

Step 1: While the plant is still firm, use a sterilized pair of scissors or a sharp, sterilized knife to take leafy stem cuttings of about 4 to 6 inches long.

Step 2: Place the stem cuttings on a peat and sand mix with the bottom ends of the cuttings pressed a couple inches into the soil.

Step 3: Place the stem cuttings in a shady location and be sure to mist them regularly.

Step 4: When roots develop, the young blackberry plants are ready to plant.

planting blackberries blackberry in hand
ChadoNihi/Pixabay

How to propagate through suckers

Propagating blackberries from suckers is one of the best ways to root the plant. Suckers are baby plants (in this case, baby blackberry plants) that grow horizontally from the roots of the parent. These are often the best way to propagate a new plant because they’re already on their way to being one!

When removing suckers, be sure to do so as close to the ground as possible, and be careful. It’s still a baby plant, and you don't want to damage it or do anything to cause it to not be viable. If the sucker plant doesn’t have its own root system yet, it isn’t grown enough to be removed. If it does have its own root system, you should be able to safely separate it from the parent plant and replant it elsewhere in your garden. Use a small hand shovel to dig around the base of the plant to remove the sucker without causing damage.

Person picking blackberries
ch_ch/Shutterstock

How to propagate by tip layering

Another successful method for propagating blackberries is called tip layering. This works by pinning the tip of a stem into the ground, covering it with some soil, and caring for it until there’s enough of a new root system to cut the new plant away from the parent.

Step 1: In late summer to early fall, pin the tip of a blackberry stem into the ground with bobby pins to keep it flat. Leave the tips pinned and covered throughout winter.

Step 2: When the weather warms in the spring, assess the pinned plant for new offshoots with root systems. Gentle separate the new plants from the parent plant and replant.

Blackberry bush
Elizabeth George/Unsplash / Unsplash

How to propagate from seeds

You can definitely grow blackberries from seeds, but don't expect a harvest your first year. In fact, healthy seedlings need about a year to grow before you can bring them outside — even after that, your early harvests may be a bit sparse. Let's walk through the blackberry seed planting process step by step.

Step 1: Leave your blackberry seeds in the fridge for 3 to 6 months.

Blackberries need a cooling period to germinate successfully. During this time, you can keep them in a plastic baggie with a moist paper towel or damp peat moss. A fridge isn't the only place where you can do this step, but it's the most convenient. The temperature should be around 30 degrees Fahrenheit.

Step 2: When you notice some sprouting, place the sprouts in a compost-fortified potting mix and water thoroughly whenever your soil dries out.

Step 3: At the start of the next growing season, transplant your blackberry plants outside, leaving 2 to 8 feet of space between each one.

Blackberry sprout planted in the ground
Thaweewong/Shutterstock

How to care for blackberry plants as they grow

Now that you've gone to the trouble of getting all these adorable baby plants, you'll need to know how to help them grow into mature, healthy plants, right?

Step 1: Plant young blackberry plants in an area with full sunlight and space to expand. Blackberry plants can handle some shade, but too much will negatively affect the amount of fruit produced.

Step 2: Plant the blackberry plants in well-draining soil that has not been used to grow other crops like strawberries, tomatoes, or peppers in the past three years. All of these plants are prone to similar diseases, so planting your blackberries in a new location will limit any negative impacts to your plant.

Step 3: During the first three weeks after planting, water your blackberry plants frequently. Watering should be done during the day, and you’ll want to make sure the top inch of the soil is moist.

Step 4: After the initial three-week watering period, your blackberries should receive 1 to 2 inches of water once a week during the daytime (and 4 inches of water during harvest season). Remember that blackberries have a fairly shallow root system, so it’s best not to let more than the top 6 inches of soil dry out.

With just a little bit of luck and some proper care, you’ll have no trouble propagating and growing new blackberry plants so that you'll have fresh berries all growing season long next year!

Editors' Recommendations

Kiera Baron
Former Digital Trends Contributor
Kiera Baron is a freelance writer and editor, as well as a budding digital artist, based in Upstate NY. She is currently one…
How to store grapes in the fridge and keep them fresh for as long as possible
Keep your grapes fresh and sweet with these tips
Purple grapes on a vine

Grapes are a versatile and readily available fruit that pairs well with other fruits, nuts, and cheeses. They’re delicious and juicy, but only when they’re fresh. Unfortunately, grapes are typically sold in large bunches, and they often start to go bad before you can eat them all! You may already know how to keep produce fresh for weeks in your refrigerator, but you might not know how to store grapes in the fridge properly. Follow these tips to keep your grapes crisp and tasty for as long as possible.

Read more
Where to buy seed potatoes for your garden
Your guide to seed potatoes
Stack of seed potatoes on a pile of soil

Growing potatoes by yourself is easy and effective. The only things you really need are seed potatoes and dirt. This makes potatoes a popular garden staple, especially for beginner gardeners who may not feel confident enough to grow more finicky plants. The fact that potatoes are incredibly versatile and delicious makes them appealing as well.

If you're looking to start your own potato garden, you'll need to know where to find seed potatoes. This guide will answer all your questions about finding seed potatoes and how to make sure your seed potatoes are top-notch choices. Let’s dig in and find some potatoes for you.

Read more
Here’s what you need to know about spinach germination time and how to grow this salad staple
This cool-weather vegetable doesn't take long to grow
Freshly harvested spinach leaves in a bowl

Spinach is a popular cool-weather crop that’s grown in many garden beds and homes. Plus, spinach can be grown hydroponically and in soil, making it a versatile crop. However, spinach seeds can be a bit finnicky when it comes to germinating. The weather and how they're prepared can make a huge difference in how long they take to germinate, which can make them a frustrating crop for beginners. If you know the proper steps, germinating your own spinach seeds is quite rewarding, though. Luckily, this guide will walk you through everything you need to know about spinach germination time.

Read more