How to Grow Clementine

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Clementine

Citrus clementina

tree

Clementine is a seedless or nearly seedless citrus fruit tree known for its small, easy-to-peel fruits and exceptionally sweet flavor. A hybrid between sweet orange and mandarin, it produces abundant crops of bright orange fruits that ripen in winter. These compact trees are ideal for home gardens and containers in warm climates.

Looking for a specific variety?

Clemenules Fina Nour Marisol Oroval Murcott

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Example Clementine timeline · Pittsburgh, PA (Zone 6b)

Plant Clementine
Around Apr 17

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

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

Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️

Sun: Full sun, 8+ hours daily; essential for fruit production and sugar development

💧

Water: Regular, deep watering during growing season (spring-summer); reduce frequency in winter. Keep soil consistently moist but never waterlogged. Mature trees are moderately drought-tolerant but produce better fruit with adequate water during fruit development.

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Spacing: 180 inches

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Days to maturity: 3-4 years from grafted nursery tree for first significant crop

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

Soil

Type: Well-draining sandy loam to loamy soil

pH: 6.0-7.5

Amendments:

Compost or aged bark Perlite or coarse sand for drainage Citrus-specific fertilizer with micronutrients (zinc, iron, magnesium)

Growing Zones

Find your zone →

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

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

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Growth Stages

Establishment (Year 1-2)

12-24 months

Young tree focuses on root and branch development. Growth is vigorous but flowering is minimal or removed.

Remove early flowers to encourage root establishment. Water regularly and deeply. Stake for support. Apply mulch 3-4 inches from trunk, keeping it away from the base.

Juvenile/Vegetative Growth (Year 2-3)

12-18 months

Tree develops main scaffold branches and canopy structure. Occasional blooming may occur but fruit should be removed.

Prune to shape; remove crossing or downward-growing branches. Begin light citrus fertilizer applications. Maintain consistent watering.

Flowering (Late Winter to Spring, Year 3+)

3-4 weeks

Abundant white, fragrant flowers appear on branch tips. Trees typically flower February-April depending on location.

Do not fertilize during bloom; ensure adequate soil moisture to prevent flower drop. Provide full sun exposure. Avoid spraying pesticides during bloom to protect pollinators.

Fruit Development & Growth (Spring-Summer)

8-12 weeks

Small green fruits develop and enlarge rapidly. Early fruit drop (June drop) is normal; trees self-regulate crop load.

Thin fruit if excessive (one fruit per 4-6 inches of branch) for larger fruits. Apply potassium and magnesium-rich fertilizer. Water deeply and consistently. Monitor for pests.

Ripening & Harvest (Fall-Winter)

6-12 weeks

Fruits turn from green to bright orange as sugars accumulate. Flavor peaks 4-6 weeks after color change.

Allow fruits to fully color on tree for best flavor; do not harvest early. Reduce watering slightly in late season. Harvest fruits by cutting (not pulling) with pruners.

Companion Planting

Plan your garden →

Plant with:

Borage Marigold Nasturtium Alyssum Oregano Other citrus trees (if space allows)

Avoid planting near:

Walnut trees (produce juglone) Fennel (inhibits growth of most plants) Cabbage family crops (compete for nutrients) Dense shade-producing trees

Common Pests

Remove affected leaves, apply horticultural oil spray, maintain tree vigor. Severe infestations may require insecticidal soap.
Monitor for yellowing leaves and distorted growth; control with neem oil or pyrethrin sprays. This pest can transmit serious diseases, so early detection is critical.
Increase humidity, spray with water, apply horticultural oil or neem oil. Avoid over-fertilizing with nitrogen.
Prune heavily infested branches, apply dormant oil in winter, spray with horticultural oil during growing season.
Remove with alcohol-soaked cotton swabs, spray with neem oil or insecticidal soap, encourage natural predators.
Spray with strong water spray, apply insecticidal soap or neem oil, plant companion flowers to attract beneficial insects.

Uses

🍳

Fresh eating and easy peeling

Culinary

Clementines are prized for their seedless or near-seedless fruits, thin, easy-to-remove peel, and exceptionally sweet flavor. They are perfect for snacking, lunchboxes, and fruit platters, requiring no special tools to enjoy. [source]

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Juice and beverages

Culinary

The juice is sweeter and less acidic than regular oranges, ideal for fresh-squeezed juice, smoothies, and cocktails. High juice content makes clementines excellent for making concentrated juices and cordials. [source]

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Natural fragrance and peel uses

Household

The fragrant peel can be dried for homemade potpourri, natural air fresheners, or infused into oils. Dried peels retain their citrus aroma for months and can be used in holiday decorations. [source]

💊

Vitamin C and immune support

Medicinal

Clementines are rich in vitamin C, providing approximately 50% of daily requirements per fruit. Regular consumption supports immune function, collagen synthesis, and antioxidant protection. [source]

🦋

Pollinator and bird attraction

Wildlife

The abundant fragrant flowers attract bees, butterflies, and other pollinators in late winter when few other blooms are available. Ripened fruits attract birds and wildlife in winter. [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 clementines when fruit is fully orange and slightly soft to the touch; flavor improves as they mature on the tree. Cut fruits with pruners rather than pulling to avoid damaging branches. Clementines ripen November-January depending on location. Peak ripeness is 4-6 weeks after full color development. Fruits store well at room temperature for 2-3 weeks or in the refrigerator for 4-6 weeks.

Fun Facts

🌱 Clementines are named after Father Clement Rodier, a French missionary in Algeria who discovered the fruit as a chance hybrid in his monastery garden in the 1920s.
🌱 Unlike most citrus, clementines are primarily seedless due to a genetic trait that prevents seed development, making them extremely convenient for fresh eating—a quality that made them popular commercial crops in Morocco, Spain, and the Mediterranean.
🌱 A mature clementine tree can produce 100-200 fruits per season, and under optimal conditions, some trees yield over 400 fruits in particularly abundant years.

Gardening Terms

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

Full Sun Hybrid Mulch

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