How to Grow Ugli Fruit
Wikimedia Commons
Ugli Fruit
Citrus reticulata × Citrus sinensis
fruitThe Ugli fruit is a hybrid citrus fruit that is a cross between a grapefruit and a tangarine, originating from Jamaica. It has a distinctive bumpy, warty skin and sweet, juicy flesh with a mild flavor. The fruit is seedless or nearly seedless, making it convenient for eating fresh.
When should you plant Ugli Fruit in your zone?
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Example Ugli Fruit timeline · Pittsburgh, PA (Zone 6b)
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Plant Ugli Fruit
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Ugli Fruit
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Ugli Fruit dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 9-11, preferring warm subtropical to tropical climates
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Get my Ugli Fruit timeline →Growth Stages
Young Tree Establishment
1-2 yearsRecently grafted or young tree with sparse branching and small canopy; focused on root development and basic structure
Water regularly to establish deep roots. Stake for support in windy areas. Remove competing stems. Apply mulch 4-6 inches around base. Fertilize monthly with balanced citrus fertilizer.
Vegetative Growth
1-2 yearsTree develops fuller canopy with vigorous branch growth; no flowers or fruit present yet
Continue consistent watering and fertilizing. Prune to establish strong framework with 3-4 main branches. Remove water sprouts. Maintain weed-free zone. Monitor for pests.
Flowering
3-4 weeksSmall white fragrant flowers appear in spring clusters; tree may look sparse of foliage at this stage
Reduce nitrogen fertilizer to encourage flowering. Maintain consistent moisture. Do not prune heavily during flowering. Ensure adequate potassium and phosphorus. Allow flowers to develop naturally.
Fruit Development
4-6 monthsTiny green fruits develop from pollinated flowers; gradually increase in size through summer and early fall
Thin fruit if overcrowded (one fruit every 4-6 inches on branches) for larger, better quality fruit. Maintain deep, consistent watering. Apply balanced fertilizer every 4-6 weeks. Protect from wind damage.
Fruit Maturation & Harvest
2-3 monthsFruit reaches full size with characteristic bumpy skin; color changes from green to orange-yellow as it ripens
Continue watering and fertilizing through maturation. Fruit typically matures November-March in Northern Hemisphere. Harvest when fruit yields slightly to pressure and feels heavy. Can leave on tree for 4-6 weeks after full color.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove affected leaves; use reflective mulches; apply spinosad or neem oil spray on young foliage; avoid excessive nitrogen
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Monitor with yellow sticky traps; remove infested terminals; apply horticultural oil or neem oil; encourage natural predators
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Increase humidity with regular misting; spray with water to dislodge; apply neem oil or sulfur if severe
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Prune affected areas; apply horticultural oil or insecticidal soap; use 70% isopropyl alcohol on cotton swabs for small infestations
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Prune heavily infested branches; apply dormant oil spray in winter; use horticultural oil or neem oil during growing season
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Use yellow sticky traps; apply neem oil or horticultural soap; encourage natural predators like lacewings
Uses
Fresh Eating & Juice
CulinaryUgli fruit is primarily enjoyed fresh, either eaten by sections or squeezed for juice. The relatively seedless nature and sweet-tart flavor make it ideal for breakfasts, smoothies, and fresh consumption without the mess of many other citrus varieties. [source]
Marmalade & Preserves
CulinaryThe fruit's unique flavor and pectin content make it suitable for jams, marmalades, and preserves. The unusual skin texture provides distinctive visual appeal in homemade preserves. [source]
Vitamin C & Immune Support
MedicinalAs a citrus fruit, Ugli fruit is rich in vitamin C, supporting immune function, collagen production, and antioxidant protection. One medium Ugli fruit provides approximately 60-70% of daily vitamin C requirements. [source]
Natural Cleaning Agent
HouseholdLike other citrus peels, Ugli fruit peel contains limonene, a natural degreaser and cleaner useful for household cleaning tasks, furniture polish, and as a natural air freshener when dried. [source]
Wildlife Habitat & Pollinator Support
WildlifeThe fragrant spring flowers attract bees, butterflies, and other pollinators essential for fruit set. The tree provides shelter and food for various bird species that feed on insects and occasionally the fruit. [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 when fruit is fully colored (orange-yellow) and feels heavy for its size, typically November through March. Fruit can remain on tree for several weeks after reaching peak ripeness without quality loss. Cut fruit with pruning shears leaving short stem; do not pull. Store at 50-55°F for extended shelf life. Fruit will continue to ripen slightly after harvest if picked while still somewhat firm.
Fun Facts
- 🌱 The name 'Ugli' is actually a trademark name (spelled 'Ugli' with a capital U) for this specific hybrid citrus, though the name comes from the Jamaican patois word for 'ugly' referring to its bumpy, unattractive exterior that contrasts with its delicious interior.
- 🌱 Ugli fruit is believed to be a natural hybrid that spontaneously occurred in Jamaica in the 1920s, making it one of the few major commercial citrus fruits to have such recent origins.
- 🌱 Despite its warty appearance, the Ugli fruit's skin is actually thinner and easier to peel than most grapefruits and tangerines, and the fruit is almost completely seedless, making it more convenient than its parent fruits.
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