How to Grow Mango (Keitt)

Mango (Keitt)

Mangifera indica 'Keitt'

tree

Keitt is a late-season mango cultivar prized for its large, kidney-shaped fruits with excellent flavor and minimal fiber content. This tropical tree produces heavily and is one of the most popular commercial mango varieties worldwide. It requires warm climates and is highly valued for both fresh market and processing.

Growing Conditions

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Sun: Full sun, 8+ hours daily for optimal fruit production

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Water: Deep watering 1-2 times weekly during growing season; reduce frequency when established. Drought-tolerant once mature but yields best with consistent moisture. Allow soil to dry slightly between waterings.

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Spacing: 300 inches

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Days to maturity: 2160-2520 days (6-7 years from young tree to first fruit)

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Planting depth: Transplant at same depth as root ball; do not bury graft union

Soil

Type: Well-draining sandy loam or loamy soil

pH: 5.5-7.5

Amendments:

Compost or aged manure Mulch layer (3-4 inches) Perlite or sand if soil is clay-heavy

Growing Zones

Find your zone →

Thrives in zones 10b-11; can survive zone 10a with winter protection but frost-sensitive below 40°F

10a 10b 11a 11b

Growth Stages

Establishment

1-2 years

Young sapling with developing root system and primary branching structure

Water regularly, stake for support if needed, remove competing branches, protect from frost and strong winds

Vegetative Growth

2-4 years

Tree develops main scaffold branches and dense canopy; no fruiting yet

Prune to establish open center form, fertilize monthly during growing season, monitor for pests

Flowering

4-8 weeks

Terminal panicles of small yellowish or reddish flowers appear in late winter to early spring (timing varies by location)

Reduce nitrogen to encourage flowering, provide cool dry period if possible, protect flowers from frost and strong wind

Fruit Development

8-12 weeks

Small green fruits form from pollinated flowers, grow rapidly, and change color as they mature (yellow-red blush)

Thin fruit to 1 per panicle for larger size, mulch heavily to retain moisture, fertilize with potassium and magnesium

Harvest Readiness

Variable based on climate

Mature fruits are large (12-16 oz), kidney-shaped, with golden-yellow skin and slight red blush; extremely aromatic

Allow tree to set its natural fruit load, harvest only when fully mature (late June to September), support heavy branches

Companion Planting

Plan your garden →

Plant with:

Coconut palm Avocado Papaya Pineapple Banana Legume cover crops

Avoid planting near:

Black walnut (juglone toxicity) Eucalyptus (allelopathic competition) Citrus trees (competing nutrient demands in same microclimate)

Common Pests

Spray with neem oil or insecticidal soap; encourage natural predators; remove affected leaves
Spray with horticultural oil in dormant season; prune heavily infested branches; apply systemic insecticide if severe
Sanitate fallen fruit, wrap developing fruits in paper bags, apply pyrethrin-based sprays during fruit development
Improve air circulation, avoid overhead watering, apply sulfur spray or potassium bicarbonate if needed
Remove infected plant material, improve drainage and air flow, apply copper fungicide during wet season, prune tree canopy

Uses

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Fresh eating and premium market fruit

Culinary

Keitt mangoes are prized for their large size, minimal fiber, rich flavor, and excellent eating quality. The flesh is smooth and creamy, ideal for fresh consumption, smoothies, and desserts. [source]

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Processing and commercial use

Culinary

The cultivar's firm flesh and low stringiness make it ideal for frozen pulp, juice concentrate, and dried mango products in the commercial food industry. [source]

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Nutritional health benefits

Medicinal

Mangoes are rich in vitamin C, vitamin A, dietary fiber, and antioxidants including mangiferin and quercetin, supporting immune function and digestive health. [source]

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Shade and ornamental tree

Household

Keitt mango trees grow 30-45 feet tall with dense, attractive foliage, providing excellent shade and landscape value in tropical climates. [source]

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Wildlife and pollinator support

Wildlife

The flowers attract bees, flies, and other pollinators; mature trees provide food and shelter for tropical birds and wildlife. [source]

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

Harvest Tips

Keitt mango typically ripens late June through September depending on location. Harvest when fruits reach full mature size and yield slightly to gentle pressure; do not squeeze hard. Color is golden-yellow with minimal red blush at peak ripeness. Use sharp pruning shears to cut fruit with 1-2 inch stem attached. Do not twist or pull fruit as this damages branches. Ripen at room temperature (68-75°F) for 1-2 weeks after harvest; flavor improves post-harvest. Peak ripeness produces strong, sweet mango aroma.

Fun Facts

🌱 Keitt mango is named after the Keitt family, Florida citrus growers who discovered and propagated this seedling in the 1930s; it has become one of the world's top commercial varieties.
🌱 The tree can live 50+ years and produce up to 400 pounds of fruit annually when mature and well-maintained, with some specimens exceeding these yields.
🌱 Mango trees require a cool, dry period (ideally 40-60°F temperatures) to trigger flowering, which is why cultivation in truly tropical areas without a dry season requires special management techniques.

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