The Mexican lime tree is beautiful as well as useful with its dense, shrubby foliage and is becoming more common as an indoor as well as outdoor plant. The limes it produces are often used on a small scale as garnishes or as flavoring for food dishes or as an ingredient in many alcoholic drinks. On a larger scale, Mexican limes are commercially produced for lime juice and lime syrup. The Mexican lime tree grows best in a year-round warm climate, but can be adapted for climates with varying seasons with some attention and care.
Choose a spot for your lime tree that receives a minimum of 10 full sunlight hours a day. If you don't have a space in your yard that consistently sunny, you can plant in a large pot, although it may not flourish quite as rapidly.
Plant your Mexican lime tree in a low PH commercial soil mixture where it will receive good drainage. If potting your tree, choose a receptacle that allows good drainage or place gravel or other small stones at the bottom before placing the soil. Fertilize on a regular basis.
Water your tree enough to keep the soil consistently moist, but not enough to make it soggy. Acquire a moisture meter at your local gardening store to help you gauge the moisture level of your soil. In particularly dry areas, mist the leaves daily to keep them from dehydrating.
Treat your lime tree for aphids and ants by mixing a few drops of dish soap with around 8 oz. of warm water. Put this solution in a spray bottle and treat the entire tree. In between treatments, spray your tree with the hose to knock the bugs off. For an effective, yet more time-intensive approach, you can remove insects and kill them individually.
If the temperature in your area reaches below 40 degrees in the winter, plan to relocate your Mexican lime tree inside until the weather warms back up. If you live in such an area, potting your lime tree may be the wisest choice to make transferring back and forth less stressful for the tree. While indoors, continue to water and treat the plant with the same amount of sunlight to ensure its health.