image by Joyce Starr
Persian limes are one of the most recognizable citrus fruits. Commercially, they are the number-one lime sold in retail markets. Growing a Persian lime is not that hard, providing you attend to the tree's basic requirements. Persian limes, and limes in general, are the most non-tolerant of all the citrus fruits of freezing temperatures. Therefore, it is best to grow a Persian lime outdoors only in Zones 9 and above. If you live anywhere else, it is best to stick to container growing when dealing with limes.
Select an area in your yard that receives full sunlight and is large enough to house the Persian lime tree at maturity. Lime trees will not tolerate shady conditions and can reach a height of 10 feet when full grown.
Consider an area located on the south side of your house to plant the Persian lime tree. That area will be more protected from the cold winds coming in from the North.
Clear an area that is 3 feet in diameter, free of any weeds or other plants or grasses. Keep the planting free of vegetation at all times.
Plant your Persian lime tree in soil that has organic matter amended into it. Be sure the soil drains well and is not prone to flooding, as the lime tree will die from root rot. Amend the soil with an organic material such as peat or manure, working it into the planting area.
Water the Persian lime tree 2-3 times per week, depending on your weather conditions. If it is extremely hot and dry, keep the soil around the lime tree moist but not flooded. Limes will grow best if the soil's moistness is maintained.
Fertilize the Persian lime tree monthly with a high-quality fertilizer designed specifically for citrus. Lime trees in general are heavy feeders and require a constant supply of nutrients to produce good foliage and fruits.
Prune off any dead wood only after winter has passed and spring is in full bloom. Pruning during winter can open the tree up for damage if a cold snap presents itself.