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How to Grow Breadfruit

Artocarpus altilis

Perennial

Breadfruit is a large tropical evergreen that needs consistently warm, humid conditions and cannot tolerate any frost. In the UK it can only be grown in a large heated greenhouse or tropical conservatory. Provide rich, well-drained soil, regular watering, and monthly feeding during the growing season. The starchy fruit is cooked like a vegetable and can be roasted, fried, or boiled.

Yearly Lifecycle

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JanFebMarAprMayJunJulAugSepOctNovDec
Flowering Fruit Set Harvest

Care Essentials

Feed monthly with a balanced fertiliser throughout the growing season. Breadfruit is a vigorous grower and benefits from regular feeding to support its large leaves and fruit production.

Watch For

  • Mealybugs in leaf axils and on stems
  • Scale insects on stems and leaf undersides
  • Red spider mite in heated glasshouses
  • Root rot from overwatering
  • Leaf spot in humid conditions

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Care Requirements

☀️ Light

Full light under glass; needs headroom

Full bright light under glass. Needs a large heated greenhouse in the UK with maximum light. This is a big tree — allow plenty of headroom.

💧 Watering

Consistent moisture and high humidity

Water regularly and keep soil consistently moist during the growing season. High humidity is essential. Reduce slightly in winter but never let soil dry out.

🌱 Fertilizing

Monthly balanced feed in growing season

Feed monthly with a balanced fertiliser during the growing season. Breadfruit is a vigorous grower and benefits from regular feeding.

✂️ Pruning

Prune to control size under glass

Prune to control size when growing under glass. Breadfruit responds well to pruning and can be kept smaller than its natural size.

❄️ Overwintering

Minimum 15°C; heated greenhouse essential

Maintain minimum 15°C year-round with high humidity. A large heated greenhouse is essential in the UK. Reduce watering slightly in winter.

🍎 Harvesting

Pick when yellowish-green; cook before eating

Harvest when fruit is full-sized and the skin turns from green to yellowish-green. The starchy fruit must be cooked before eating — roast, fry, or boil.

Growing Tips

Tropical warmth required

Needs minimum 15 °C year-round and high humidity. A large heated greenhouse is essential in the UK.

Feed and water well

Water regularly and feed monthly with a balanced fertiliser during the growing season.

Cook before eating

Harvest when fruit is full-sized and the skin turns from green to yellowish-green. Cook before eating.

Allow space overhead

This is a large tree — allow plenty of headroom. Prune to control size if growing under glass.

Pests & Diseases

Pest Mealybug

Identification: White cottony masses in leaf axils and on stems, sticky honeydew

Organic treatment:
  • Dab with a cotton bud soaked in methylated spirit
  • Introduce Cryptolaemus ladybird as biological control under glass
Chemical treatment:
  • Spray with fatty acid or plant oil-based insecticide
Pest Scale Insects

Identification: Small brown bumps on stems and leaf undersides, sticky honeydew and sooty mould

Organic treatment:
  • Wipe off with a cloth dipped in soapy water
  • Introduce parasitic wasps as biological control
Chemical treatment:
  • Spray with plant oil-based insecticide
Pest Red Spider Mite

Identification: Fine webbing on leaf undersides, stippled yellowing leaves, tiny mites visible with a hand lens

Organic treatment:
  • Increase humidity by misting regularly
  • Introduce predatory mite Phytoseiulus persimilis
Chemical treatment:
  • Spray with fatty acid-based miticide
Disease Root Rot Phytophthora spp.

Symptoms: Yellowing leaves, wilting despite moist soil, dark mushy roots, plant collapse

Treatment: Remove from pot, trim rotten roots, repot in fresh free-draining compost. Reduce watering

Prevention: Use well-drained compost. Ensure pots have adequate drainage holes

Disease Leaf Spot

Symptoms: Brown or black spots on the large leaves, sometimes with yellow halos

Treatment: Remove and destroy affected leaves. Improve air circulation

Prevention: Avoid overhead watering. Ensure good ventilation in the greenhouse

Popular Varieties

Ma'afala

A popular Samoan variety with compact growth habit and shorter fruiting time. Small to medium fruit with pale, dense, starchy flesh when cooked.

Ulu Fiti

A Fijian variety known for tolerance to salt spray and difficult soil conditions. Round fruit with rough skin that cooks down to smooth texture.

Spacing & Planting

Plant spacing 1350 cm
Row spacing 1500 cm
Mature height 1000 cm
Mature spread 600 cm

Called ulu in Hawaiian. Large evergreen tree. Many varieties exist. Can produce year-round with main crop July-November.

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