Keitt Mango Tree — Grafted, Late-Season Fiber-Free Fruit

$115.00

Keitt saves the best for last — ripening in late summer, when every other mango is finished. Nearly fiber-free fruit that scoops like custard, on a semi-dwarf tree that’s happy in a pot.

6+ hrs direct, full sun Light Deep, infrequent waterings; well-drained soil, never soggy Water 10–11 USDA Zones 30–60 ft in ground; prune to 10–15 ft in a pot Mature Height
Alive Arrival Healthy on arrival, or we replace it
Free Shipping On orders $99+

Keitt Mango Tree — the One That Saves the Best for Last

We have a soft spot for Keitt. Most mango varieties ripen in a rush through May and June — and then the season quietly ends. Keitt doesn’t do that. It holds its fruit back until late summer, so when every other mango is finished, yours is just getting sweet. There’s something satisfying about walking outside in August and picking a ripe mango while the neighbors’ trees stand bare.

And the fruit is worth the wait. Keitt mangoes run one to four pounds, with skin that stays mostly green even when ripe — so you judge readiness by a gentle squeeze at the stem, not by color. Inside, the flesh is nearly fiber-free. You can scoop it straight out with a spoon, like custard. No stringy bits.

This one has a good story, too. Keitt was found as a seedling on a Homestead, Florida property in 1939 and went on to become the workhorse mango of South Florida’s orchards. It’s also a semi-dwarf with an open, easy canopy — one of the few full-size mangoes that settles honestly into a large pot.

How to Help It Thrive

Keitt is happiest with six or more hours of direct sun and soil that drains freely. Like all mangoes, it dislikes wet feet — water deeply, then let the top few inches of soil dry out before you water again. In Zones 10–11 it’s right at home in the ground, and mature trees can briefly take near 25°F while young trees want to stay above 30°F. North of Zone 10, a 20–25 gallon pot and a sunny indoor spot for winter will keep it happy for years.

Quick Facts

  • Botanical name: Mangifera indica ‘Keitt’
  • Common name: Keitt mango (凯特芒)
  • Origin: Homestead, Florida — selected in 1939
  • USDA hardiness: Zones 10–11; potted indoors elsewhere
  • Size at delivery: Grafted tree about 2–3 ft tall, in a pot
  • Mature size: 30–60 ft in ground; 10–15 ft pruned in a pot
  • Fruit: Large, 1–4 lb, mostly green skin, nearly fiber-free
  • Season: Late — August through October
  • Years to fruit: 3–5 years (grafted)
  • Light: Full sun, 6+ hours a day
  • Water: Deep but infrequent; let soil dry between waterings
  • Pet safety: Ripe flesh is safe; pit is a choking hazard, skin/sap can irritate

What to Expect as It Grows

Your Keitt arrives as a grafted tree about 2–3 ft tall, already past the fragile seedling stage. Grafted trees usually begin bearing in 3–5 years — far sooner than a seedling, which can take a decade or never fruit at all. Once it settles in, Keitt is a heavy bearer.

Want to see how Keitt compares to our other mangoes? We wrote a friendly guide to all five varieties, or you can browse the full Fruit Trees collection.

📖 Free Care Guide Included

Every tree ships with our complete care guide — watering calendar, winter protection, and troubleshooting. Read the mango care guide before your tree arrives →

🛡️ And if anything goes wrong, we’ve got you: every plant is backed by our 60-Day Guarantee.

Every Keitt Mango Tree — Grafted, Late-Season Fiber-Free Fruit we ship comes from our nursery with years of growing experience behind it. Here's what to expect — written by the people who grow them.

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Settling In (First 1–4 Weeks)

  • Keep the pot in bright, indirect light for the first 3–5 days, then gradually move it into full sun.
  • Water to keep the soil evenly moist — never soggy — while it adjusts; mango roots hate standing water.
  • Hold off fertilizing for the first month so the roots can settle in without burn.
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Growth & Progress

  • The first new flush of growth usually appears within 3–6 weeks as the tree settles in.
  • Year one is about root establishment — expect modest top growth while the tree builds its foundation.
  • Grafted Keitt trees typically begin fruiting in their third to fifth year.
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Care Tips From Experienced Growers

  • Give it 6+ hours of direct sun — mangoes are sun lovers and fruit best in full sun.
  • Water deeply but infrequently, letting the top few inches of soil dry out between waterings.
  • Feed with a balanced fruit fertilizer every 6–8 weeks during spring and summer.
  • In Zones 10–11, plant in well-draining soil; elsewhere, grow in a large pot and bring indoors before frost.
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Things to Watch For

  • Yellowing older leaves usually mean overwatering or poor drainage — let the soil dry more between waterings.
  • Dropping small fruit early in the season is normal (June drop) — the tree is thinning itself.
  • Black, water-soaked leaf spots in humid weather are often anthracnose — improve airflow and treat with copper fungicide.
  • Browning leaf edges and tips often mean salt burn from fertilizer — flush the soil with water.

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Frequently Asked Questions

How soon will my Keitt mango tree bear fruit?

Because your tree is grafted, not grown from seed, it should begin fruiting in about 3 to 5 years. A seedling mango can take a decade or more u2014 or never fruit at all u2014 so grafting is what makes a homegrown harvest realistic. Give it full sun, good drainage, and steady feeding, and the first fruit usually appears once the tree has built a strong root system and canopy.

Can I grow a Keitt mango in a container?

Yes u2014 Keitt is one of the better full-size mangoes for containers because it is semi-dwarf with an open canopy. Use a large pot (eventually 20u201325 gallons) with fast-draining soil, and expect it to stay around 10u201315 ft with pruning. It will grow and fruit more slowly in a pot than in the ground, but container growing is the only way to keep a mango alive through winter outside Zones 10u201311.

Why is my mango tree dropping small green fruit?

Almost always, this is normal physiological fruit drop u2014 mangoes set far more fruit than they can ripen and shed the excess in the first few weeks. In a healthy tree it can drop up to 90% of its early fruit and still produce a full crop. Heavy drop can also be triggered by drought stress or extreme heat, so keep the soil evenly moist during fruit set.

Is a mango tree toxic to cats and dogs?

The ripe fruit flesh is safe for cats and dogs, and mango is not listed as toxic by the ASPCA. The two real cautions are mechanical, not poison: the large pit is a choking and intestinal-blockage hazard, so never let a pet chew it, and the skin and sap contain urushiol-like oils that can irritate mouths and skin. Keep pets away from the tree, the sap, and especially the pit.

What makes Keitt different from other mangoes?

Three things. Late season u2014 Keitt ripens August through October, long after most mangoes are finished. Size u2014 the fruit runs 1 to 4 pounds, some of the largest commonly grown. And texture u2014 the flesh is nearly fiber-free, so it scoops like custard. Its skin also stays mostly green even when ripe, so ripeness is judged by a slight give at the stem, not by color.

How do I protect my mango tree in winter?

Keitt is a tropical tree hardy to roughly Zone 10u201311. Mature trees can briefly survive near 25u00b0F, but young trees are tender below 30u00b0F. If you are north of Zone 10, grow it in a pot and bring it indoors before the first frost, keeping it in a bright, cool spot and watering sparingly through winter. In marginal areas, plant on a south-facing wall and cover young trees on frost nights.

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