How to Grow ʻĀkala

Wikimedia Commons

ʻĀkala

Rubus hawaiensis

fruit

ʻĀkala is a native Hawaiian raspberry species endemic to the Hawaiian Islands, featuring delicate red to dark red berries similar to mainland raspberries. This woody shrub produces small, aggregate fruits and thrives in the cool, moist upland forests of Hawaii. It is culturally significant to Native Hawaiians and increasingly cultivated for both culinary and conservation purposes.

When should you plant ʻĀkala in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my ʻĀkala timeline →

Example ʻĀkala timeline · Pittsburgh, PA (Zone 6b)

  1. Plant ʻĀkala

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest ʻĀkala

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact ʻĀkala dates for your own zip code.

Growing Conditions

☀️
Sun: Partial shade, 4-6 hours of filtered sunlight daily; tolerates dappled light under tree canopies
💧
Water: Consistent moisture; prefers humid conditions with regular watering. Avoid waterlogging. High humidity (60-80%) is ideal. More water needed during fruiting season.
📏
Spacing: 36 inches
📅
Days to maturity: 18-24 months from establishment to first substantial fruiting
🌱
Planting depth: Same depth as root ball for transplants; seeds require scarification and stratification

Soil

Type: Well-draining, organic-rich volcanic or loamy soil
pH: 5.5-6.5
Amendments:
Peat moss or coconut coir for moisture retention Composted organic matter Perlite or pumice for drainage

Growing Zones

Find your zone →

Thrives in zones 10b-11b; requires cool, moist upland conditions typical of Hawaiian elevations (2,000-5,000 feet)

10b 11a 11b

Sign up free to see if ʻĀkala grows in your zone — and get a personalized planting timeline.

Get my ʻĀkala timeline →

Growth Stages

1

Establishment

3-6 months

Young plants develop root system and initial cane growth; leaves are compound and slightly hairy

Maintain consistent soil moisture; protect from direct sun; mulch heavily; avoid fertilizer stress

2

Vegetative Growth

6-12 months

Woody canes extend; compound leaves multiply; plant develops characteristic thorny or bristly stems

Monitor for pests; ensure adequate humidity; light pruning to encourage branching; provide support structure if needed

3

Flowering

4-8 weeks

Small white to pale pink flowers appear in clusters; bloom occurs in spring and early summer

Maintain consistent moisture; avoid pruning during flowering; ensure pollinator access; light fertilization with balanced fertilizer

4

Fruiting

8-12 weeks

Aggregate drupelets form and ripen from green to red to dark red; berries are small (0.5-0.75 inches)

Increase watering during fruit development; provide shade cloth in hotter regions; monitor for pest damage; hand-harvest ripe berries regularly

5

Dormancy/Renewal

2-4 months

Canes may slow growth in cooler months; older canes can be pruned to encourage new growth

Remove dead or diseased canes; thin crowded growth; apply winter mulch; reduce watering slightly but maintain some moisture

Companion Planting

Plan your garden →

Plant with:

ʻŌhiʻa lehua (Metrosideros polymorpha) Māmaki (Pipturus albidus) Native Hawaiian ferns ʻŌpuhe (Hawaiian native vine) Hapu'u (Cibotium glaucum)

Avoid planting near:

Aggressive spreading plants Black walnut (allelopathic) Plants requiring full sun that compete for light Frost-sensitive tropical species in exposed locations

Common Pests

  • Increase humidity; spray with water; neem oil in severe cases; ensure good air circulation

  • Remove and destroy affected canes; prune to maintain plant health; encourage natural predators

  • Hand-pick beetles; use pheromone traps; avoid pesticides that harm beneficial insects

  • Improve air circulation; reduce overhead watering; apply sulfur-based fungicide if needed; remove infected leaves

  • and

    Create barriers; hand-pick; encourage predatory beetles; provide copper tape around plant base

Uses

🍳

Fresh eating and preserves

Culinary

ʻĀkala berries can be eaten fresh, or made into jams, jellies, and syrups. The tart, bright flavor pairs well with other Hawaiian fruits and is used in traditional Hawaiian cuisine. [source]

💊

Traditional Hawaiian healing

Medicinal

ʻĀkala has been used in traditional Hawaiian medicine (lāʻau lapaʻau) for various remedies, including support for digestive health and nutritional fortification. The leaves and berries contain antioxidants and vitamin C. [source]

🏠

Dye production

Household

The berries produce rich red dyes traditionally used in Hawaiian textile dyeing and craft applications. The color is relatively stable and creates beautiful warm red hues. [source]

🦋

Native pollinator and bird habitat

Wildlife

ʻĀkala flowers provide nectar for native Hawaiian honeycreepers and other pollinators, while the berries feed native and migratory birds. Growing ʻĀkala supports Hawaiian forest ecosystems. [source]

🎨

Cultural and conservation significance

Craft

ʻĀkala is an endemic Hawaiian species with cultural importance to Native Hawaiians. Cultivating it contributes to biodiversity preservation and the continuation of Hawaiian agricultural traditions. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest berries when fully red to dark red, typically from late spring through summer. Berries are fragile and best picked by hand into a shallow container. Harvest every 1-2 days during peak ripeness for best flavor. Eat fresh or preserve within 1-2 days for optimal quality. Yield typically increases in the second and subsequent years.

Fun Facts

  • 🌱 ʻĀkala is endemic to Hawaii and found naturally only on the main Hawaiian islands, making it a unique and irreplaceable part of Hawaiian biodiversity.
  • 🌱 The species is naturally adapted to high-elevation cloud forests, where frequent mist and moisture create ideal growing conditions—replicating these conditions in cultivation is key to success.
  • 🌱 ʻĀkala berries were traditionally gathered by Native Hawaiians and featured in early Hawaiian diet, with references appearing in historical mele (songs) and traditional knowledge.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized ʻĀkala planting timeline

Tell us your zip code and we'll calculate exactly when to start ʻĀkala seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my ʻĀkala timeline →