Planting Blackberries & Black Raspberries: The Ultimate Growing & Care Guide
•Posted on October 28 2024
Blackberries and black raspberries are perennial bramble plants that can provide delicious homegrown berries for years when planted in the right location and maintained properly.
Although blackberries and black raspberries are closely related, they are not exactly the same. Their spacing, growth habits, pruning, and training can differ. This guide covers the fundamentals they share while pointing out the important differences you'll need to know as your plants mature.
Whether you're planting a young plug in the garden, establishing a berry row, growing in a raised bed, or keeping a compact variety in a container, this guide will help you get started.
Quick Blackberry & Black Raspberry Growing Guide
| Botanical Genus | Rubus |
| Plant Type | Perennial bramble |
| Sunlight | Full sun, ideally 6–8+ hours |
| Soil | Fertile and well-draining |
| Soil pH | Approximately 6.0–6.5 |
| Black Raspberry Spacing | About 2½ feet apart |
| Blackberry Spacing | About 3–5 feet apart, depending on variety |
| Water | Consistent moisture without waterlogged soil |
| Support | Depends on variety and growth habit |
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What to Do When Your Blackberry or Black Raspberry Plugs Arrive
Unlike dormant bare root plants, blackberry and black raspberry plugs generally arrive as actively growing young plants with roots established inside a small plug of growing medium.
Unpack your plugs promptly. Check that the root ball is moist but not saturated, and give actively growing plants access to bright light.
If the plants have been protected during shipping or growing, gradually acclimate them to stronger outdoor sunlight and wind before leaving them permanently exposed.
How to Plant Blackberry & Black Raspberry Plugs
Step 1: Prepare the Planting Hole
Dig a hole slightly wider than the existing root ball and approximately as deep as the plug.
Step 2: Remove the Plug Carefully
Handle the plant by the root ball rather than pulling on the young stem. Keep the established root system as intact as possible.
Step 3: Plant at the Existing Depth
Position the plug so the top of its existing growing medium is approximately level with the surrounding soil. Keep the stem above the soil rather than burying it deeper than it was growing in the plug.
Step 4: Backfill & Water
Backfill around the root ball, gently firm the soil, and water thoroughly to settle the plant into its new location.
Step 5: Mulch if Desired
A layer of organic mulch can help conserve soil moisture and suppress weeds. Keep mulch from being piled directly against the young stem.
Plug Planting Recap
Full sun • Good drainage • Plant at existing plug depth • Keep stem above soil • Water thoroughly • Maintain consistent moisture while establishing
Choosing the Right Location & Soil
Because blackberry and black raspberry plants can remain productive for years, preparing the right location before planting is much easier than correcting a poor site after the plants mature.
Full Sun
Choose a location receiving at least 6–8 hours of direct sunlight per day. Full sun supports strong cane growth, flowering, and fruit production.
Well-Draining Soil
Brambles need reliable moisture but don't perform well where roots remain waterlogged. Avoid low areas where water regularly collects.
If your native soil drains poorly, improving the planting area with organic matter or using a raised bed may provide better growing conditions.
Soil pH
Aim for slightly acidic soil around pH 6.0–6.5. Test the soil before making major pH adjustments so amendments can be selected based on what the soil actually needs.
Blackberry & Black Raspberry Spacing
Give brambles enough room for mature cane growth, airflow, harvesting, and pruning. Exact spacing can vary by variety and training system.
Black Raspberries
Space plants approximately 2½ feet apart. Black raspberries primarily produce new canes from the crown, so each plant develops as a more distinct clump than a spreading red raspberry hedgerow.
Blackberries
Space blackberry plants approximately 3–5 feet apart. Vigorous trailing or semi-erect varieties may require additional room, depending on the training system.
For traditional rows, generous aisle space makes pruning, harvesting, mowing, and maintaining the planting much easier as the canes mature.
Growing Blackberries & Black Raspberries in Containers
Compact bramble varieties can be grown successfully in containers when they have enough root space, excellent drainage, adequate sunlight, and appropriate support.
Choose a large container with drainage holes and fill it with a quality, well-draining potting mix. Plant at the same depth the plant was previously growing.
Container-grown brambles generally require more frequent moisture checks than plants growing in the ground because the root zone can dry more quickly.
Caring for Blackberry & Black Raspberry Plants
Watering
Keep the root zone consistently moist while young plants establish, but avoid keeping the soil continuously saturated.
Instead of watering on a fixed calendar, check the soil and adjust for rainfall, temperature, soil type, plant size, and whether the plant is growing in the ground or a container. Adequate moisture becomes especially important during flowering and fruit development.
Mulching
Organic mulch can help conserve moisture, suppress weeds, and moderate soil temperatures. Keep thick mulch from being piled directly against the crown or stems.
Fertilizing
Fertility needs vary by soil and plant age. A soil test is the best starting point before making major fertilizer applications. Avoid excessive nitrogen, which can encourage overly vigorous cane and leaf growth.
Trellising & Support
Support needs depend on the variety. Strong erect blackberries may remain largely self-supporting, while semi-erect and trailing blackberries generally benefit from a trellis. Black raspberries can also be supported to make pruning and harvesting easier.
Understanding Primocanes & Floricanes
Understanding blackberry and raspberry canes makes pruning much easier. The root system and crown are perennial, but individual canes don't live forever.
Primocanes
Primocanes are new canes produced during the current growing season. In traditional floricane-fruiting varieties, these canes primarily grow during their first year and become next year's fruiting canes.
Floricanes
Floricanes are second-year canes that produce fruit on traditional summer-bearing brambles. After a floricane finishes fruiting, it naturally dies and should be removed.
How to Prune Blackberries & Black Raspberries
Pruning keeps bramble plantings manageable, improves airflow and light penetration, and removes canes that have finished producing.
Black Raspberry Pruning
Black raspberries benefit from summer tipping. When new primocanes reach roughly 3 feet tall, removing a few inches from the growing tip encourages lateral branches to develop.
Those lateral branches can produce fruit the following season. During dormant pruning, remove weak, damaged, or excess canes and shorten laterals as appropriate for the plant's vigor and training system.
After fruiting, remove spent floricanes that have completed their crop.
Blackberry Pruning
Blackberry pruning depends on whether the variety is erect, semi-erect, trailing, floricane-fruiting, or primocane-fruiting.
Traditional floricane-fruiting blackberries produce fruit on second-year canes. Remove those spent floricanes after harvest while preserving healthy new primocanes for the following season.
Erect blackberry primocanes may also be tipped during summer to encourage lateral branching. Trailing varieties are generally trained along a trellis and managed according to their longer cane growth.
The Most Important Pruning Rule
Don't automatically cut every blackberry or black raspberry cane to the ground. First determine whether your variety fruits on floricanes, primocanes, or both.
Blackberry & Black Raspberry Growth Cycle
Dormancy
Perennial crowns and roots remain alive while aboveground growth rests during winter.
Spring Growth
New primocanes emerge and established fruiting canes develop leaves, laterals, and flower buds.
Flowering & Fruit Development
Flowers open and, after successful pollination, developing berries progress through their characteristic ripening stages.
Harvest
Harvest timing varies by variety and climate. Pick berries when they have developed the mature color and flavor characteristic of the variety.
Post-Harvest
On floricane-fruiting varieties, spent second-year canes die after fruiting while healthy primocanes continue developing for the next season.
Blackberry & Black Raspberry Pollination
Many commonly grown blackberry and black raspberry varieties are self-fruitful, meaning a single compatible plant can produce fruit without requiring a different variety as a pollinator.
Pollinating insects are still extremely important. Bees visiting the flowers help achieve complete pollination, which supports good berry development, size, and shape.
Blackberry & Black Raspberry Troubleshooting
My Plug Is Wilting After Planting
Check: Soil moisture, drainage, planting depth, exposed roots, intense sunlight, and transplant stress. Newly planted plugs need consistent moisture while their roots expand into the surrounding soil.
The Stem Is Rotting Near the Soil
Check planting depth and moisture. The young stem should not be buried deeper than it was growing in the original plug. Continuously saturated soil can also contribute to root and crown problems.
My Plant Is Growing but Not Fruiting
Check: Plant age, sunlight, pruning, cane type, and your variety's fruiting habit. Many brambles produce their primary crop on second-year floricanes.
Canes Are Extremely Long or Falling Over
Check your variety's pruning and support needs. Black raspberries and erect blackberries may need summer tipping, while trailing and semi-erect blackberries commonly benefit from trellising.
Leaves Are Yellowing or the Plant Is Declining
Check: Drainage, soil moisture, nutrition, root health, and signs of pests or disease. Persistent wet soil is particularly concerning for bramble root systems.
Frequently Asked Questions
How deep should I plant blackberry or black raspberry plugs?
Plant plugs at approximately the same depth they were growing in their original plug. Cover the root ball while keeping the young stem above the surrounding soil.
How much sunlight do blackberry and black raspberry plants need?
Plant them in full sun whenever possible, ideally with at least 6–8 hours of direct sunlight per day.
How far apart should black raspberries be planted?
Approximately 2½ feet apart is a useful general spacing for black raspberry plants.
How far apart should blackberry plants be?
Approximately 3–5 feet apart is common, although vigorous trailing or semi-erect varieties may need additional room depending on the training system.
Do blackberry plants need a trellis?
It depends on the variety. Strong erect blackberries may require little support, while trailing and semi-erect varieties generally benefit from a trellis.
Do black raspberries need a trellis?
A trellis isn't always required, but support can help keep canes organized, improve access for harvesting, and make pruning easier.
Can I grow blackberries in containers?
Yes, especially compact varieties. Choose a large container with excellent drainage and provide support when required by the variety.
Should I cut blackberry canes to the ground every year?
Not automatically. Pruning depends on whether your variety fruits on second-year floricanes, first-year primocanes, or both. Cutting all canes to the ground on the wrong variety can remove the next crop.
Grow Your Own Blackberries & Black Raspberries
Healthy brambles start with full sun, well-draining soil, proper planting depth, consistent moisture, and pruning suited to the variety.
Explore berry plants from Hand Picked Nursery and start building a productive berry garden for seasons of homegrown fruit.
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1 Comments
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Posted by Anonymous | March 04, 2026
Leave a CommentThe blackberry plants arrived in perfect condition. I can’t wait until they start producing. Thank you