Citrus Tree (Citrus)

Citrus Tree

Citrus

Glossy evergreen foliage carries zesty, sun-warmed fragrance. Broad genus of fruiting evergreen shrubs/trees; common names: citrus trees, orange/lemon/lime trees.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Requires full direct sunlight for optimal fruiting; tolerate partial shade but will produce fewer flowers and fruits
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Watering Water deeply when the top 5–7 cm of soil dries out; avoid overwatering to prevent root rot and fungal growth
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Temperature Thrives at 18–28°C; protect from frost below 5°C and avoid sudden temperature fluctuations
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Characteristics

  • Leaf: Alternate, glossy elliptical to ovate leaves; leathery texture, aromatic when crushed
  • Flower: Small, white, star-shaped fragrant blooms (citrus blossom)
  • Fruit: Hesperidium (leathery-rinded berry) with juicy, segmented flesh; varies by cultivar
  • Stem: Woody stems, often thorny in wild and standard cultivars
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Care Guide

Watering

Water deeply 1–2 times weekly; increase frequency during prolonged hot, dry periods

Fertilization

Feed every 2–3 weeks with balanced fruiting plant fertilizer. Avoid over-fertilizing, as excess nitrogen can reduce flowering and fruiting

Banana Peel Compost Tea:Compost banana peels for 2–4 weeks, steep in water for 24 hours, dilute 1:20 for root drenching; avoid using raw peels to prevent pest infestations
Pruning
  • Remove dead, diseased, or crossing branches in late winter to improve airflow and sunlight penetration
  • Thin overcrowded inner growth to encourage fruiting and reduce disease risk
  • Prune dwarf indoor cultivars in early spring to maintain desired size and shape
  • Remove rootstock suckers to preserve the traits of the grafted cultivar
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic due to essential oils and psoralens; may cause vomiting, diarrhea, depression, or photosensitivity

Humans: Concentrated essential oils and peel may cause oral irritation or stomach upset if ingested in large quantities; skin irritation from direct contact with undiluted oils

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Garden Uses & Culture

Culture: Symbolizes prosperity, purity, and good fortune in many Southeast Asian and Mediterranean cultures

Usage: Edible fruit for culinary use, essential oil production, ornamental landscaping, and indoor fruiting displays