Lemon tree
Citrus limon · Rutaceae
📷 André Karwath aka Aka · CC BY-SA 2.5
⚠️ La pulpe mûre est comestible. Feuilles, tiges, écorce et peau du fruit contiennent des huiles essentielles et psoralènes pouvant causer troubles digestifs ou irritation chez chiens et chats.
The gardener's calendar
Ideal time to plant lemon tree: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Evergreen
- Blooming
- Spring (March to May)
- Adult size
- Up to 3 m in height
- Growth
- Moderate to fast
- Hardiness
- Cold-sensitive (from -5 °C)
- Origin
- Southeast Asia, probably China or India
- Soil type
- Well-draining, slightly acidic
- Production
- Edible fruits year-round
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.
Expert tips
The key tip
Lemon trees depend entirely on light: less than 6 hours of direct sunlight = no flowers or fruit drop. Indoors in winter, place it at the brightest window, avoid the back of a room.
The common mistake
Decorating the interior with a lemon tree in low light: it survives a few months, then loses all its leaves and flowers simultaneously.
The pro's trick
Take it outside in summer if possible: light and air trigger flowering better.
Care
Watering
Water regularly, keeping the soil moist but without waterlogging. During growth periods (spring-summer), increase watering frequency; in winter, reduce it. Let the soil dry out slightly between waterings to prevent root rot.
Light Exposure
Place your lemon tree in full sun, for at least 6 to 8 hours per day. A south or southwest-facing position is ideal to encourage flowering and fruiting. In very hot climates, light afternoon shade can prevent sunburn on the fruits.
Pruning and Shape
Prune lightly after harvest to maintain a balanced form and stimulate branching. Remove dead, crossing, or diseased branches. Avoid severe pruning, which reduces flower and fruit production.
Fertilizing
Apply a balanced fertilizer or one rich in potassium and magnesium during the growth period (March to September). Choose citrus-specific formulations if available. Reduce feeding in winter.
Soil Preparation
Use well-draining substrate that is slightly acidic (pH 5.5 to 7). Enrich with compost or quality potting soil. If drainage is poor, add sand or clay pellets to prevent root asphyxiation.
Diseases and Pests
Watch for scale insects, spider mites, and aphids. Maintain good air circulation to reduce fungal risks. If pests appear, remove them manually or spray with an appropriate treatment according to your preferences (insecticidal soap, sulfur, etc.).
Did you know?
The lemon tree likely originated in ancient India or China and spread via Arab trade routes during the Middle Ages. The Crusaders discovered it in the Levant and introduced it to the Mediterranean, where it became a symbol of luxury and wealth during the Renaissance. Today, fresh lemon remains a globally precious fruit, a symbol of freshness and culinary vitality.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
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Tips generated and checked by Viridia — adapt them to your local climate.