edibleFamily: RosaceaeGenus: Rubus

Cultivar

Columbia Star Blackberry

Rubus

The Columbia Star blackberry is a highly regarded thornless variety valued for its large, uniform, and flavorful fruit that holds up well for fresh eating or preserving. Its semi-trailing canes are vigorous and productive, making it suitable for training onto trellises in home orchards or large garden spaces. This cultivar offers a balance of garden performance and culinary quality, producing sweet, medium-to-large berries consistently throughout the harvest season.

Columbia Star is a productive thornless blackberry known for its high-quality, flavorful fruit and semi-trailing growth habit. It is an excellent choice for home gardens looking for reliable harvests.

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18-plant pack · Ship

$89.74per pack

$89.74 total

576 plants available · max 32 packs

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Orders generally ship within 3–7 days after purchase. Agardeni gives priority to USPS Priority Mailfor standard live-plant shipments when practical.

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Agardeni ships from Florida and does not monitor destination temperatures nationwide. Customers are responsible for considering local weather conditions and retrieving packages promptly after delivery.

Agardeni is not responsible for plant damage caused by freezing temperatures, frost, excessive heat, or prolonged exposure to extreme temperatures at the destination.

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Cultivar Story

Start with Inspiration. Grow Your Aspiration.

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Growing Inspiration

Inspiration for future Agardeni growing environments.

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Marketplace Plant

A realistic representation of the starter plants offered in 18, 36, and 72 plant quantities.

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Aspirational Garden

Grow your aspirational plan into an inspirational garden.

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Plant Detail

A closer look at the fruit, flower, foliage, or mature defining characteristics of this cultivar.

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Repotting / Start Growing

Begin with a starter plant and establish it in a larger pot using quality potting soil with beneficials and fertilizer.

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Start · Plan · Grow

Start with real plants. Plan with current marketplace availability. Grow your aspirational garden.

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Plant Profile

Grow Columbia Star Blackberry with confidence

Key growing information first, with the complete reviewed cultivar profile available when you want it.

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Sun

Full sun for optimal fruit production and plant health.

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Water

Consistent moisture is required, especially during the fruit-ripening phase; avoid waterlogged soil.

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Mature size

Canes typically reach 5-7 feet in length.

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Hardiness

USDA zones 6-9

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Growth habit

Semi-trailing, vigorous, thornless canes.

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Plant type

fruiting shrub

View Plant Data

Care, size, flowering, climate, soil, health, and additional reviewed data.

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Good to know

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Growing note

Provide a sturdy trellis or support system for the canes to keep fruit off the ground and facilitate easier harvesting.

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Climate note

Requires a certain number of chill hours to break dormancy; adaptable to moderate heat but requires consistent water in high heat regions.

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Flower / fruit

Produces sweet, glossy black fruit in mid-summer; thorns are absent on mature canes.

Growing & Care

Everyday care, growth, feeding, and pruning guidance.

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Sun / light

Full sun for optimal fruit production and plant health.

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Growth rate

Moderate to fast during the active growing season.

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Fertilizer

Apply a balanced, slow-release fertilizer in early spring as new growth emerges.

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Pruning

Prune back fruited canes after harvest; remove weak or damaged canes in late winter to encourage new, productive growth.

Care notes

Provide a sturdy trellis or support system for the canes to keep fruit off the ground and facilitate easier harvesting.

Size & Habit

How the plant grows and the space it needs at maturity.

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Mature size

Canes typically reach 5-7 feet in length.

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Growth habit

Semi-trailing, vigorous, thornless canes.

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Spacing

Space plants 4-6 feet apart in rows to allow for adequate air circulation.

Flower / Fruit

Flowering, fruiting, pollination, bloom, and harvest behavior.

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Flowering / fruiting

Produces sweet, glossy black fruit in mid-summer; thorns are absent on mature canes.

Climate & Hardiness

Cold, heat, chill, and regional growing considerations.

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Hardiness zones

USDA zones 6-9

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Temperature

Requires a certain number of chill hours to break dormancy; adaptable to moderate heat but requires consistent water in high heat regions.

Soil & Water

Moisture, drainage, soil, and pH preferences.

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Watering

Consistent moisture is required, especially during the fruit-ripening phase; avoid waterlogged soil.

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Soil

Rich, well-draining soil with organic matter is preferred to support vigorous growth.

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Soil pH

5.5-6.5

More Plant Data

19 additional reviewed fields from this Plant.id.

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Container Growing

Can be grown in large containers with appropriate support, though in-ground planting is generally more productive for mature blackberry bushes.

Family

Rosaceae

Foliage Look

Lush, dark green, serrated, compound leaves on flexible, green-to-reddish canes.

Foliage Rules

Leaves are compound, usually with five leaflets, displaying deep green color and characteristic serrated edges.

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Fruit Flower Look

Clusters of medium-to-large, sweet, glossy black berries with a firm, uniform, conical-to-cylindrical shape.

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Fruit Flower Rules

Fruit is typically absent on juvenile starter plants; only depict mature, glossy black berries on mature, established canes.

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Growth Habit Rules

Do not depict this as an upright tree or a compact shrub; it is a semi-trailing cane fruit that requires a support structure.

Mature Plant Look

A vigorous, leafy, semi-trailing bush supported on a sturdy trellis, laden with large, glossy, black, cylindrical berries.

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Mature Stage Morphology

Mature plants display a dense mass of long, vigorous, thornless canes with compound, serrated foliage and abundant clusters of berries.

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Morphology Rules

Ensure the absence of thorns is highlighted in botanical descriptions for this specific thornless cultivar.

Plant Faqs

Does Columbia Star need a trellis? Yes, this variety has a semi-trailing growth habit and benefits significantly from a support system. Are these blackberries thornless? Yes, Columbia Star is a commercially popular thornless cultivar, making it much easier to harvest. When do these berries ripen? The fruit typically matures during mid-summer, depending on your local climate zone. Can I grow this in a pot? It can be grown in a large container with a trellis, but it will require consistent watering and feeding.

Root Look

Healthy, white-to-tan fibrous root system filling the plug cell.

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Soil Look

Dark, nutrient-rich, porous, well-draining garden soil or professional potting media.

Starter Stage

Small, young blackberry plants with active, green stem growth and multiple healthy leaves.

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Starter Stage Morphology

Young plants feature serrated, bright green leaves and supple stems with developing roots suited for transplanting.

Video Voiceover Script

Welcome to Agardeni, where inspiration for gardening helps us imagine how and where we will grow Columbia Star Blackberry. This is Columbia Star Blackberry, available as 18, 36, and 72 plant starter trays through the Agardeni Marketplace. Let Columbia Star Blackberry become part of your aspirational plan, helping you imagine the future fruit-bearing trellis you want to create. These berries are prized for their exceptional flavor and glossy, black appearance that makes them perfect for fresh picking and enjoying directly from the vine. Establish your starter plug in a four-inch pot with quality potting mix, then move it to a permanent trellis or in-ground location once it is strong enough to thrive. Find your inspiration with Agardeni. Explore real plants and real availability. Start. Plan. Grow.

Youtube Tags

Blackberry Rubus Columbia Star Thornless Blackberry Edible Garden Fruit Garden Agardeni Home Orchard Berry Gardening Starter Plants Fruit Production

Youtube Video Summary

The Columbia Star blackberry is a premier thornless choice for home gardeners, offering large, flavorful fruit on vigorous, manageable canes. Learn how to establish this reliable producer in your own edible landscape for years of harvests.

Youtube Video Title

Growing Columbia Star Thornless Blackberries at Home

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