PlantFun
Plant Needs
Sunlight
Requires 6–8 hours of direct sunlight daily for optimal fruiting; tolerate partial shade during extreme midday heat
Watering
Water deeply when the top 5 cm of soil feels dry; avoid overwatering to prevent root rot
Temperature
Thrives in 18–30°C; protect from frost and temperatures below 10°C to prevent leaf damage
Characteristics
- Leaf: Glossy, ovate to elliptical leaves with aromatic oil glands
- Flower: Small white, five-petaled flowers with sweet citrus scent
- Fruit: Small, round green to yellow limes with thin skin and tart juice
- Stem: Thorny young stems; mature branches have reduced thorns
Care Guide
Watering
Keep soil consistently moist but not waterlogged; increase frequency during hot, dry spells
Fertilization
Feed every 2 weeks with balanced citrus fertilizer. Avoid over-fertilizing to prevent leaf burn and excessive foliage growth at the expense of fruit production
Eggshell powder top dressing：Bake eggshells at 120°C for 10 minutes, crush to fine powder, and sprinkle 1 tbsp around the base monthly; gently work into the topsoil to avoid disturbing rootsPruning
- Remove dead, diseased, or crossing branches in late winter to improve airflow and light penetration
- Thin overcrowded inner growth to promote even fruiting across the shrub
- Trim back long, leggy branches in spring to maintain a compact, bushy shape
- Remove suckers growing from the rootstock to preserve the fruiting quality of the main plant
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic due to essential oils and psoralens; may cause vomiting, diarrhea, drooling, and depression
Humans: Essential oils and peel may cause oral irritation or stomach upset if ingested in large quantities; undiluted oils may irritate skin
Garden Uses & Culture
Culture: Symbolizes freshness and culinary versatility in global cuisine
Usage: Culinary use for tart juice and zest; ornamental fruiting shrub for gardens and patios
