berry cane
Ouachita thornless blackberry
A tidy blackberry for warm humid summers.
Growing Profile
- Hardiness
- Zones 5a-9a
- Sun
- Full
- Soil
- LoamClay
- Water
- Medium
- Deer pressure
- Occasionally damaged Use as a deer browsing cue, not a guarantee; heavy deer pressure can override resistance ratings.
- Black walnut
- Juglone-sensitive Use as a black walnut / juglone planning cue; tolerance varies by cultivar, soil, and distance from the tree.
- Planting depth
- Set the crown or top of root ball level with the surrounding soil.
- Container min
- 10+ gal (workable)
- Goals
- FruitPrivacy & screening
Harvest & Use
- Window
- ripens in early summer
- Yield return
- 5-15 lb/plant/year
- First output
- 1-2 yrs
- Best for
- FruitPrivacy & screening
Harvest window: ripens in early summer. Once established, the current pound-return model uses 5-15 lb/plant/year with a harvest window of 2-5 weeks.
Plant photos
What it looks like in the garden
Use these photos to compare the plant's leaves, stems, flowers, fruit, and overall habit before you buy or plant.
Photos show a representative plant in the garden. Fruit color, size, and growth habit can vary by cultivar, season, nursery stock, and site.
Photo sources: George Chernilevsky / Wikimedia Commons (Public domain) Dwight Sipler from Stow, MA, USA / Wikimedia Commons (CC BY 2.0)
Quantitative Profile
- Pound return
- 5-15 lb/plant/year
- 10-year return
- 45-135 lb/10 yrs
- Full output
- 2-3 yrs
- Mature size
- 4-8 ft H x 2-4 ft W
- Spacing
- 3-4 ft in-row x 8-10 ft rows
- Planting depth
- Set the crown or top of root ball level with the surrounding soil.
- Container min
- 10+ gal (workable)
- Productive life
- 8-15 yrs
- Difficulty
- 3/5
- Reliability
- 4/5
- Data quality
- Medium profile, Medium yield confidence
Pound return is the stock-style yield metric. These are planning ranges for comparing plants, not guarantees. Cultivar, rootstock, climate, soil, pruning, pest pressure, and wildlife can move actual results.
Planting Checklist
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Bird netting
Protection / Before ripeningProtect ripening berries, grapes, cherries, figs, and other bird-attractive fruit.
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Right-size container with drainage
Containers / Before plantingUse a container large enough for mature roots, with open drainage holes to prevent root rot.
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Expanding container potting mix
Containers / Before plantingUse a lighter container medium instead of dense garden soil in pots and grow bags.
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Garden gloves
Tools / Planting dayProtect hands while digging, mulching, pruning, and handling thorny or rough-stemmed plants.
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Fruit tree and berry fertilizer
Nutrition / After establishmentSupport fruiting wood, bloom, and recovery after establishment once soil needs are known.
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Soil test kit or lab mailer
Site prep / Before plantingCheck pH and baseline nutrients before adding amendments, especially for fruiting crops, native beds, and acid-loving plants.
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Digging spade or shovel
Tools / Planting dayOpen planting holes, loosen compacted soil, and shape beds for larger transplants.
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Plant labels
Planning / Planting dayTrack cultivar, planting date, and variety when comparing harvests or pollination partners.
Yield curve
Estimated Pound Return
Projected annual yield ramp from establishment to full production, using the current sourced range for Ouachita thornless blackberry.
- Year 1
- 1.7-5 lb First-year estimate from the sourced curve.
- Year 5
- 5-15 lb
- Year 10
- 5-15 lb
- 10-year total
- 45-135 lb/10 yrs
Shaded band shows the sourced low-to-high pound-yield range. The line tracks the midpoint for quick comparison.
Method: direct pound yield from crop metric source. Annual crops assume one comparable planting per year; perennial crops ramp from first bearing to full production.
Planting Strategy
- Planting depth: Set the crown or top of root ball level with the surrounding soil.
- Container minimum: 10+ gal (workable). Use 10+ gal; larger containers stabilize moisture and yield.
- Start with one plant when testing fit in a new bed or container.
- Plant more than one when harvest volume or pollination is the main goal.
- For screening, repeat compatible plants and confirm mature spacing before buying.
Risk Factors
- Match the site first: full light, loam, clay soil, and medium water.
- Use 3-4 ft in-row x 8-10 ft rows as the first spacing model; adjust for hedges, trellises, containers, or local guidance.
- Plan around mature size: 4-8 ft H x 2-4 ft W.
- For harvest planning, treat "ripens in early summer" and 5-15 lb/plant/year as planning ranges, not guarantees.
- For screens and hedges, confirm mature size and spacing with the nursery label or local extension guidance.
Related Planning Guides
Comparable Plants
Sources & Methodology
This guide combines hardiness range, light, soil, water, harvest timing, traits, supplier links, plant relationships, and quantitative planning metrics. Pairings are screened for practical garden fit.
Quantitative values use extension and botanical-reference ranges where available. For less-studied cultivars, similar crops fill gaps conservatively. Ranges are intentionally broad so the profile stays useful without pretending to be exact.
Planning sources: University of Maryland Extension - Growing Raspberries and Blackberries in a Home GardenUniversity of Maryland Extension - Planting a Tree or ShrubUniversity of Maryland Extension - Starting a Home Fruit GardenUniversity of Maryland Extension - Types of Containers for Growing VegetablesRutgers NJAES - Landscape Plants Rated by Deer Resistance
Supplier search: Stark Bro's. Search links are not paid placements unless explicitly marked; affiliate listings may earn a commission. Last reviewed: 2026-05-31.