Citrus aurantiifolia - Key Lime - Key Lime

Citrus aurantiifolia, commonly known as the sour lime tree or Key Lime, is a small fruit tree that produces delicious small limes. Here are some care tips for this plant:

1. Light: Sour lime trees need plenty of light to thrive. Place your plant in a sunny spot where it will receive at least 6 to 8 hours of direct sunlight per day. A south-facing window is usually ideal for this.

2. Temperature: Sour lime trees prefer warm temperatures. Keep your plant in a place where the temperature is consistently above 10°C (50°F). They do not tolerate cold temperatures or drafts well.

3. Watering: Water your lime tree regularly, ensuring the soil remains slightly moist, but not waterlogged. Allow the top layer of soil to dry out between waterings. Make sure the pot has good drainage to prevent root rot.

4. Humidity: Sour lime trees like moderate ambient humidity. If your indoor air is very dry, consider placing a saucer filled with water near the plant or using a humidifier.

5. Fertilization: During the growing season (spring and summer), fertilize your lime tree about once a month with a balanced indoor plant fertilizer. Reduce fertilization in autumn and winter when the plant enters dormancy.

6. Pruning: You can prune the plant to encourage more compact growth and to remove dead or damaged branches.

7. Pollination: If you grow your lime tree indoors, it may be necessary to manually pollinate the flowers to encourage fruit formation. You can use a soft brush to transfer pollen between flowers.

8. Common problems: Watch out for pests such as aphids, mealybugs, or spider mites. Treat them promptly if you spot them. Sour lime trees can also be susceptible to diseases such as root rot, so make sure the soil is well-draining.