How to Grow Citron
Wikimedia Commons
Citron
Citrus medica
fruitCitron is an ancient citrus fruit tree that produces large, fragrant, thick-skinned yellow fruits with minimal juice and abundant pith. The tree is prized primarily for its zest, essential oils, and perfumed rind rather than for juice. It is one of the original citrus species and holds significant cultural and religious importance in Jewish traditions.
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Example Citron timeline · Pittsburgh, PA (Zone 6b)
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Plant Citron
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 Citron
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9-11; can be grown in zone 8b with protection
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Seedling & Early Growth
First yearYoung tree develops primary branches and establishes root system; typically 1-2 feet tall in first year
Protect from frost; maintain consistent moisture; avoid heavy fertilization; prune lightly to establish shape
Vegetative Development
Years 2-3Tree grows vigorously, producing dense foliage and establishing canopy structure; reaches 6-12 feet
Water deeply and regularly; apply balanced citrus fertilizer monthly during growing season; prune to create open vase shape; mulch around base
Flowering
4-8 weeks in springSmall white, highly fragrant flowers appear in clusters; blooms typically occur in spring with some variation by cultivar
Maintain consistent watering; reduce nitrogen fertilizer to encourage flowering; protect flowers from frost if needed; do not prune heavily during bloom
Fruit Development & Maturation
6-9 monthsSmall green fruits develop and enlarge over 6-9 months; gradually turn yellow as they mature; fruits are large and heavy with thick rind
Continue regular watering; thin excessive fruit for better size and quality (leave 6-12 inches between fruit); apply potassium-rich fertilizer; support heavy branches
Harvest & Production
Ongoing after year 3Mature tree produces 20-50 fruits annually; fruits are large (up to 12 inches long), aromatic, and ready to harvest
Harvest when fully yellow; allow proper ripening time for best fragrance and zest quality; prune lightly after harvest; maintain tree health with proper fertilization
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Inspect regularly; use yellow sticky traps; spray with neem oil or insecticidal soap; remove affected growth; maintain tree vigor
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Prune infested branches; spray with horticultural oil during dormant season; apply insecticidal soap on crawlers; encourage natural predators
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Increase humidity; spray with water to dislodge; use neem oil or horticultural miticide; maintain tree health
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Use yellow sticky traps; spray with insecticidal soap or neem oil; introduce natural predators like ladybugs
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Prune affected new growth; avoid excessive nitrogen; use spinosad spray; maintain tree vigor
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and
Ensure excellent drainage; avoid overwatering; remove affected tissue; apply fungicide if severe; improve soil aeration
Uses
Zest & Candied Peel
CulinaryThe thick fragrant rind is candied, used to flavor desserts, marmalades, and liqueurs, or zested for baking. Citron is prized for its aromatic peel rather than juicy flesh. [source]
Perfumery & Essential Oils
HouseholdCitron essential oils and fragrance are extracted from the rind for use in perfumes, colognes, and household products. The natural oils provide a fresh, complex citrus scent. [source]
Traditional Health Uses
MedicinalIn traditional medicine, citron is used to support digestion, reduce inflammation, and provide vitamin C. The peel is brewed as tea for potential respiratory and immune benefits. [source]
Etrog & Religious Observance
CraftA specific citron cultivar (Etrog) is required for Jewish religious ceremonies during Sukkot. The ceremonial fruit must meet strict appearance standards and is highly valued. [source]
Ornamental & Pollinator Support
WildlifeThe beautiful fragrant white flowers attract pollinators including bees and butterflies. The tree serves as an ornamental with year-round interest from foliage and colorful fruits. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Citrons mature 6-9 months after flowering, typically in fall or winter. Harvest when skin turns fully yellow and fruit yields slightly to pressure. Cut fruits carefully with pruners to avoid damaging branches. Fruits can remain on tree for extended periods if needed. Peak fragrance and oil content occur when fully ripe. Store in cool location (50-60°F) for extended shelf life (several weeks to months).
Fun Facts
- 🌱 Citron is one of the three original citrus species (along with mandarin and pomelo) from which all modern citrus fruits are derived through hybridization.
- 🌱 A single citron fruit can weigh up to 10 pounds and is so fragrant that a single fruit can perfume an entire room; the rind contains approximately 40% more essential oils than the flesh
- 🌱 The citron holds deep religious significance in Judaism as the Etrog (a specific cultivar) is one of the Four Species used during Sukkot celebrations, with some fruits valued at hundreds of dollars for ceremonial purposes
Gardening Terms
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