Lime trees, like other citrus trees, grow well in warmer climates and do not appreciate frost. It is possible to grow a lime tree from seeds. Grow the lime tree as an ornamental house tree or transplant the seeding outside in the spring. Planting the seeds in a peat pot will make it easier to transplant, avoiding disrupting the root system.
Sterilize the soil. Fill a disposable aluminum pan with the potting soil and cover with foil. Place it in a preheated oven at 180 degrees F. Insert a meat thermometer through the foil and into the soil. When it reaches 180 degrees F, begin timing and remove after 30 minutes. Do not leave it in the oven for a longer period. Heat enough soil to fill the number of 3-inch pots you will be using.
Plant the seeds in the peat pot filled with sterilized and cooled soil. Simply push the seeds into the soil until they are covered.
Keep the peat pots in a dimly lit room.
Water the soil so that it is continually moist, but not wet.
Move the growing lime trees to a room with plenty of sunshine or good fluorescent lighting, after the first leaves appear.
Keep the seedling in the peat pot when transplanting to a larger pot or planting outside. Plant outside the following spring, or keep as a houseplant.