🍎 Lemon Tree
Citrus × limon
fruits evergreen fruit tree
☀️ Sun
full sun
💧 Water
consistent moisture; allow surface to dry between watering; excellent drainage critical
🗺️ Zones
9–11 (in-ground); container anywhere
🪴 Soil Type
well-drained sandy loam; citrus-specific potting mix for containers
🧪 Soil pH
5.5–6.5 (slightly acidic)
📏 Spacing
15-25 ft apart (standard); 8-12 ft (dwarf); 15-20 ft between rows
📅 Days to Maturity
3-6 years (from planting); bears fruit 2-3 years after planting improved varieties
🍴 Edible Parts
🍽️ ["Fruit"]
🤝 Companions (8)
Repels whiteflies, aphids, and nematodes; nematodes common in sandy citrus soils
Aphid and whitefly trap crop; climbing varieties can grow on trellis near tree; edible flowers
🤝 Garlic / Chives / Onions
Repel aphids, spider mites, and scale insects; garlic spray traditional for citrus pests
Attracts pollinators for lemon blossom set; accumulates trace minerals
Repels codling moth (less relevant), but also deters ants that farm scale insects; drought-tolerant Mediterranean companion
🤝 Dill / Fennel
Attract parasitic wasps and hoverflies that prey on citrus pests; also attract swallowtail butterflies (can tolerate some leaf loss)
🤝 Legumes (peas, beans)
Fix nitrogen; citrus are heavy nitrogen feeders; seasonal cover crop under tree canopy
Chop-and-drop potassium source; improves fruit quality and flavor
⚠️ Keep Apart (4)
⚠️ Walnut trees
Juglone toxicity — citrus sensitive
⚠️ Grass / Lawns (under tree)
Competition for nitrogen; citrus roots are shallow; grass can reduce yield by 50%+
⚠️ Eucalyptus trees
Allelopathic leaf litter; heavy water competition; dense shade
⚠️ Other deep-shade trees
Citrus needs full sun; any shade reduces fruiting and increases disease
💊 Medicinal Uses
Contains high vitamin C, limonene (in peel), citric acid, and hesperidin with antioxidant, antimicrobial, and immune-boosting properties. Rich in flavonoids. Traditional global remedy: fruit for scurvy, colds, flu, and digestive issues; juice as antiseptic and for sore throat; peel for respiratory congestion; essential oil for anxiety and mood elevation. Historically used by British Navy to prevent scurvy. Hesperidin strengthens capillaries.