Arapaho Thornless Blackberry Growing Guide: Care, Pests and Harvest in South Florida

Arapaho Thornless Blackberry

Arapaho is a thornless, upright blackberry with sweet, firm berries, one of the easier blackberries to grow in Florida. (Rubus 'Arapaho')

Shop this plant: Arapaho Thornless Blackberry – 3 Gal

Quick Care Summary

  • Sun: Full sun, at least 6-8 hours.
  • Soil: Well-drained, slightly acidic soil rich in organic matter; raised beds help in South Florida.
  • Watering: Keep soil evenly moist, especially during flowering and fruiting.

Sun

Full sun, at least 6-8 hours.

Soil

Well-drained, slightly acidic soil rich in organic matter; raised beds help in South Florida.

Watering

Keep soil evenly moist, especially during flowering and fruiting. Drip irrigation and mulch are ideal.

Fertilizer Schedule for South Florida

Feed a balanced fertilizer in early spring when growth starts and again after harvest. Avoid feeding in late fall.

Pruning

After harvest, cut the canes that just fruited to the ground. Tip new canes at about 4 ft to encourage side branches that will fruit next year.

Cold Protection

Very cold hardy; dormant canes handle freezes well.

Container vs. In-Ground

Grows well in a 10-15 gallon container with good drainage.

Spacing

Plant 3-4 ft apart in rows 8-10 ft apart.

Flowering and Fruiting Timeline

Fruits on second-year canes. Harvest in late spring (roughly April-June).

Harvest

Pick when berries are fully black and dull rather than shiny, and come off easily. Harvest every few days.

Common Pests and Diseases

Start with organic, low-impact fixes: good airflow, clean-up of fallen fruit and leaves, and soaps or oils before anything stronger. Always follow label directions.

Cane and leaf rust

How to identify: Orange or yellow spots on leaves.

Organic-first treatment: Remove affected canes, prune for airflow, and avoid overhead watering.

Spider mites

How to identify: Fine stippling and bronzing on leaves, tiny webbing in dry weather.

Organic-first treatment: Hose leaf undersides regularly; spray insecticidal soap or horticultural oil.

Aphids and whiteflies

How to identify: Clusters of small soft insects on new growth; curled, sticky leaves.

Organic-first treatment: Blast off with a strong water spray, then use insecticidal soap or neem oil; encourage ladybugs and lacewings.

Birds

How to identify: Missing fruit.

Organic-first treatment: Net plants during ripening.

FAQ

Is Arapaho really thornless? Yes, the canes are thornless.

Does it grow in South Florida? It is low chill and does best in Central and North Florida, but can produce in South Florida with good care.

Related Reading

Ready to grow your own? Get the Arapaho Thornless Blackberry here.

by Plant Doctor – October 30, 2026