How to Grow Tangor Daidai

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Tangor Daidai

Citrus reticulata × Citrus sinensis

tree

Tangor Daidai is a hybrid citrus tree resulting from a cross between mandarin (Citrus reticulata) and sweet orange (Citrus sinensis), combining characteristics of both parents. It produces medium-sized, sweet-tart fruits with a distinctive flavor profile and relatively easy peeling. This semi-dwarf to dwarf cultivar is particularly popular in Japanese and East Asian horticulture.

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Example Tangor Daidai timeline · Pittsburgh, PA (Zone 6b)

Plant Tangor Daidai
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Tangor Daidai
Late summer into fall

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Tangor Daidai dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; 8+ hours ideal for fruit production and quality

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Water: Regular watering during growing season (spring-summer); keep soil consistently moist but not waterlogged. Deep watering 1-2 times weekly; reduce frequency in winter. Drought-tolerant once established but performs better with consistent moisture.

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Spacing: 120 inches

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Days to maturity: 2-3 years to first fruiting; full production by 4-5 years

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Planting depth: Plant at same depth as root ball; graft union should be 4-6 inches above soil line

Soil

Type: Well-draining sandy loam to loamy soil; avoid heavy clay

pH: 6.0-7.5

Amendments:

Compost or aged manure for organic matter Citrus-specific fertilizer with micronutrients (zinc, boron, magnesium) Peat moss or sulfur to lower pH if needed Perlite or coarse sand for drainage improvement

Growing Zones

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Thrives in USDA zones 9-11, with best performance in zones 10-11; can tolerate brief frost to 20-25°F (-7 to -4°C)

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

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Growth Stages

Establishment

6-12 months

Young tree develops root system and canopy framework; slow early growth with 6-12 inches of annual growth.

Water deeply 2-3 times weekly; stake tree for support; avoid heavy pruning; apply mulch 2-3 inches from trunk.

Vegetative Growth

1-2 years

Tree develops dense foliage and branch structure; rapid seasonal growth during spring and early summer with new shoot emergence.

Apply balanced citrus fertilizer every 6-8 weeks during growing season; prune selectively to shape; maintain consistent moisture.

Flowering

3-4 weeks (spring, typically March-April in Northern Hemisphere)

Fragrant white to pink flowers appear in clusters (axillary panicles) during spring; prolific blooming on mature branches.

Avoid heavy nitrogen fertilization to prevent excessive vegetative growth at flowering expense; maintain adequate irrigation; monitor for pests attracted to flowers.

Fruit Development

4-5 months (May-August/September)

Young green fruitlets emerge and grow; fruit transitions from green to orange over 3-4 months; peel color indicates maturity.

Thin excessive fruitlets to promote larger, quality fruit (1 fruit per 4-6 inches of branch); apply potassium-rich fertilizer; maintain consistent watering.

Harvest & Dormancy

2-3 months (October-December harvest; January-February dormancy)

Mature fruits develop full color and reach optimal sweetness; tree enters reduced growth phase in winter; minimal new growth.

Harvest when fully colored; reduce watering frequency; minimal fertilization in winter; prune lightly after harvest if needed.

Companion Planting

Plan your garden →

Plant with:

Legumes (nitrogen-fixing groundcovers) Citrus trees (other compatible varieties) Marigolds Nasturtiums Borage Comfrey

Avoid planting near:

Walnut trees (juglone toxicity) Fennel Cabbage family plants (excessive allelopathy competition) Sweetpotato Laurel

Common Pests

Spray neem oil or horticultural oil on new growth; maintain tree vigor; remove heavily infested leaves; apply insecticidal soap if severe
Horticultural oil spray in dormant season; insecticidal soap; prune infested branches; encourage natural predators like ladybugs
Monitor for yellowing new growth; spray neem oil; remove infested foliage; control with systemic insecticides if Asian citrus greening present
Increase humidity with overhead watering; spray insecticidal soap or neem oil; remove severely affected leaves
Strong water spray to dislodge; insecticidal soap; neem oil; encourage ladybugs and lacewings
Sulfur dust applications; horticultural oil; maintain tree health; spray in late summer to early fall

Uses

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Fresh Eating & Juice

Culinary

Tangor Daidai fruits are excellent for fresh eating due to easy peeling and pleasant sweet-tart balance. The juice is aromatic and suitable for beverages, desserts, and Asian beverages. [source]

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Asian Cuisine & Marmalade

Culinary

Used in traditional Asian cooking, particularly Japanese cuisine, for flavoring and garnishing. The peel is used to make marmalade, jams, and candied citrus products. [source]

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Vitamin C & Immune Support

Medicinal

Rich in vitamin C, antioxidants, and flavonoids that support immune function and overall health. Traditional Asian medicine uses citrus fruits for digestive and respiratory benefits. [source]

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Peel & Oil Uses

Household

Peel contains aromatic essential oils useful for cleaning products, natural air fresheners, and aromatherapy. Dried peel can be used as compost amendment or mulch. [source]

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Pollinator & Wildlife Support

Wildlife

Fragrant spring flowers attract bees and other pollinators essential for fruit set. Tree provides year-round habitat and food for birds and beneficial insects. [source]

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

Harvest Tips

Fruits mature October-December (varies by location/climate). Pick when fully colored (deep orange) and slightly soft to gentle pressure; they do not ripen after harvest but improve in sweetness if left on tree longer. Harvest by gently twisting and pulling, or use pruning shears to avoid branch damage. Can store 2-4 weeks at room temperature; 4-6 weeks refrigerated at 50°F (10°C).

Fun Facts

🌱 Tangor Daidai is a relatively modern hybrid, developed in the early-to-mid 20th century through deliberate citrus breeding programs in Japan and other Asian countries, combining the mandarin's easy peeling with the sweet orange's flavor depth.
🌱 The name 'Tangor' comes from blending 'Tangerine' and 'Orange,' while 'Daidai' is Japanese for 'generation' or 'dynasty,' reflecting both its hybrid origin and cultural significance in East Asian horticulture.
🌱 Tangor trees are semi-dwarf cultivars, typically reaching 12-20 feet in height, making them suitable for smaller gardens and container cultivation compared to standard citrus trees.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Annual Cultivar Full Sun Hybrid Mulch pH

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