How to Grow Navel Orange Tree

Navel Orange Tree

Citrus × sinensis 'Navel'

tree

The Navel orange is a seedless citrus tree prized for its large, sweet fruit with a distinctive knob-like formation at the apex. It grows as a medium to large evergreen tree, typically 20-30 feet tall, with glossy dark green foliage and fragrant white flowers. Navel oranges are among the most commercially grown orange varieties and are excellent fresh-eating fruits with minimal seeds.

Growing Conditions

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

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Water: Regular watering, approximately 1-1.5 inches per week; established trees are moderately drought-tolerant but fruit production improves with consistent moisture. Water deeply but ensure soil drains well to prevent root rot.

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Spacing: 240 inches

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Days to maturity: 1095-1460 days (3-4 years from grafted nursery tree to first substantial harvest)

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Planting depth: Plant at same depth as nursery pot; graft union should be 4-6 inches above soil level

Soil

Type: Well-draining loamy to sandy loam soil

pH: 6.0-7.5

Amendments:

Citrus-specific fertilizer (higher in micronutrients) Compost or aged bark mulch Sulfur if pH is too high Zinc and iron chelates for deficiencies

Growing Zones

Find your zone →

Thrives in USDA zones 9-11; can survive in zone 8b with protection

8b 9a 9b 10a 10b 11a 11b

Growth Stages

Establishment (Year 1)

12 months

Young tree focuses on root and branch development; minimal fruiting expected

Water regularly (1-2 times weekly), stake for support, prune to establish framework structure, apply slow-release citrus fertilizer monthly during growing season

Vegetative Growth (Years 1-2)

12-24 months

Rapid shoot growth with increasing canopy density; small flowers may appear but should be removed

Continue structural pruning, thin competing branches, maintain consistent watering, apply balanced fertilizer, remove early blooms to focus energy on tree development

Flowering & Fruit Set (Year 3+)

2-3 months

Abundant fragrant white flowers bloom in spring; many flowers develop into marble-sized fruit

Reduce nitrogen to encourage fruiting, maintain soil moisture during fruit set, thin developing fruit to 6-8 inches apart for larger oranges, spray for pests if needed

Fruit Development & Growth (Summer-Fall)

3-4 months

Fruit grows from golf ball to full orange size (3-4 inches diameter); skin color gradually changes from green to orange

Water consistently, apply potassium-rich fertilizer, monitor for pest damage, provide shade cloth if temperatures exceed 95°F consistently

Maturation & Harvest (Late Fall-Winter)

1-2 months

Fruit reaches full size and color intensity; sugar content peaks with cold exposure

Stop nitrogen fertilization, reduce watering slightly to concentrate sugars, harvest when fully colored and slightly soft to touch, handle carefully to prevent bruising

Companion Planting

Plan your garden →

Plant with:

Lime trees Lemon trees Grapefruit trees Basil Marigold Nasturtium Borage

Avoid planting near:

Black walnut (allelopathic toxins) Fennel (inhibits citrus growth) Highly competitive shallow-rooted trees Grass and weeds in the root zone

Common Pests

Monitor new leaves for serpentine tunnels; apply horticultural oil or insecticidal soap on young growth; encourage natural parasitoid wasps
Inspect undersides of leaves for small insects; use yellow sticky traps; apply neem oil or insecticidal soap; manage ants which protect psyllids
Prune heavily infested branches; apply horticultural oil during dormant season; introduce natural predators like ladybugs and parasitic wasps
Spray affected areas with insecticidal soap or neem oil; wipe infested stems with alcohol-soaked cloth; improve air circulation
Ensure excellent drainage and avoid overwatering; prune branches touching soil; apply copper fungicide to canker lesions; mulch to prevent soil splash
Prune and burn infected branches during dry season; avoid overhead watering; disinfect tools between cuts; may require fungicidal copper sprays

Uses

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Fresh Fruit & Juice

Culinary

Navel oranges are premium fresh-eating oranges valued for their seedless fruit, high juice content, and sweet, complex flavor. They are excellent for eating fresh, juicing, and use in salads and desserts. [source]

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Zest & Flavoring

Culinary

The fragrant oil-rich peel provides aromatic zest for baking, cooking, and beverages. Fresh zest adds bright citrus notes to cakes, marinades, glazes, and cocktails. [source]

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Vitamin C & Immune Support

Medicinal

Navel oranges are an excellent source of vitamin C (ascorbic acid), an essential nutrient for immune function, collagen synthesis, and antioxidant protection. [source]

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Natural Cleaning & Fragrance

Household

Orange peel can be used to create natural, non-toxic cleaning solutions with d-limonene (a natural solvent), or dried for decorative fragrant potpourri and room fresheners. [source]

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Pollinator & Wildlife Support

Wildlife

The fragrant white spring flowers attract bees, butterflies, and other pollinators. The tree provides shelter and food sources for various bird and insect species. [source]

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

Harvest Tips

Navel oranges mature primarily in winter (November-March in Northern Hemisphere). Pick fruit when fully orange in color and slightly soft to gentle pressure. Twist gently or use pruning shears to avoid tearing branches. Fruit can remain on tree for several weeks once ripe without significant quality loss. A mature tree yields 150-300 pounds of fruit annually.

Fun Facts

🌱 Navel oranges are seedless due to a natural genetic mutation that prevents normal fruit development, making them propagated exclusively through grafting rather than seeds
🌱 The distinctive 'navel' (small opening at the fruit's base) is actually a partially developed second fruit embedded in the primary fruit—a botanical curiosity that makes them instantly recognizable
🌱 A single Navel orange tree can live 50-100+ years when properly cared for, with some heritage trees in California still producing fruit after 80+ years

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