Citrus aurantiifolia

Lime Growing & Harvesting Guide

Lime (Citrus aurantiifolia) is the zesty, high-energy star of the warm subtropical garden. Prize-winning for its intensely acidic, aromatic bright green fruits, this compact thorny evergreen thrives in hot, sunny locations, rewarding growers with year-round harvests.

Sunlight Full Sun (8+ hours)

Watering Deep / Regular

Soil pH Sandy/Fast-Draining (pH 6.0-6.8)

Target Temp 16°C - 38°C

Toxicity Toxic to Pets (Foliage/Peel)

Botanical macro photography of Lime (Citrus aurantiifolia) - Plant AI care database

How to Identify Lime

Lime (Citrus aurantiifolia) is a highly valued edible crop globally. Recognizing its definitive vegetative and fruit/vegetable structures is key to successful companion growing and harvesting.

✔
Key Visual Features: Bushy small evergreen trees with numerous sharp thorns and bright green leaves.
✔
Leaf & Stems: Small oval leaves with narrowly winged petioles; tiny fragrant white flowers.
✔
Fruit/Edible Part: Small globose hesperidium fruits with thin green dimpled skin and highly acidic greenish pulp.

💡 Plant AI Tip: Snap a photo with Plant AI to identify garden veggies and diagnose leaf spot diseases in 1 second.

Complete Growing & Harvesting Guide

Follow our detailed scientific agricultural cultivation guide to keep your Lime thriving and high-yielding.

Water deeply once every 7-10 days. Ensure excellent drainage. Limes are highly sensitive to overwatering and clay waterlogging.

Prune in early spring. Keep the center of the canopy open to optimize airflow and sunlight. Thin out lower branches.

Apply balanced organic citrus food every 3 months. Provide chelated iron foliar spray if leaves turn yellow.

Demands absolute full sun, requiring 8+ hours of direct sunlight. High heat is mandatory for juicy limes.

Thrives in deep, sandy loam that drains exceptionally fast. Intolerant of heavy, dense soils.

Plant in late spring once soil is thoroughly warm. Protect young saplings from strong, drying winds.

Requires hot tropical/subtropical air. Extremely frost-sensitive; suffers severe damage if temp drops below 4°C.

Space trees 8-10 feet apart. Excellent candidate for greenhouse growing or container culture in cold zones.

Prone to citrus leafminers, scale, and aphids. Apply organic insecticidal soap or release ladybugs.

Susceptible to Citrus Melanose and Root Rot. Keep watering area clear of weeds and mulched leaves.

Harvest when limes turn from dark green to light yellowish-green and feel slightly soft when squeezed.

Common Diseases & Treatment

Citrus Melanose (Fungal)

Symptoms: Leaves and fruit skin develop rough, sandpaper-like dark brown raised pustules that shrivel twigs.

Action: Prune and destroy dead wood in winter, and spray copper fungicide proactively during early spring leaf-out.

Phytophthora Gummosis

Symptoms: Bark at the base cracks, oozes dark amber gum, and peel-like sapwood underneath turns dark brown and dies.

Action: Keep graft union clean, avoid direct sprinkler spray on the trunk base, and paint trunk with copper fungicide slurry.

Frequently Asked Questions

Why is my lime tree losing all its leaves?

Sudden defoliation is typically triggered by cold drafts, frost shock, or waterlogged soil. Move potted limes indoors before winter chills.

Are limes ripe when they turn yellow?

Yes! Limes actually ripen to a pale yellow. However, they are harvested green because they have peak acidity and shelf-life.

Do lime trees have thorns?

Yes! Most lime varieties (especially Key Lime) have sharp thorns on their branches. Handle with care when pruning or harvesting.

Are lime oils toxic to dogs?

Yes. Lime peels and foliage contain essential oils (limonene) and psoralens, which are toxic to dogs, causing vomiting and phototoxicity.