image by Lieutenant Pol/Flickr.com
Caring for miniature lemon trees is the same as caring for regular-size lemon trees; they need a lot of sun and a moist environment to flourish. Miniature lemon trees can grow up to 8 feet tall and produce regular-size fruit. Miniature lemon trees must be at least 2 years old to produce fruit. Lemons can be grown year-round indoors or they can be planted outside in areas with mild winters.
Plant your miniature lemon trees in containers for optimum growing conditions year-round. Containers should measure at least 12 inches in diameter and be at least 10 inches deep. The top of the root ball should be level with the soil line.
Water the soil in the summer and every other day in the spring and fall. Water the tree in the winter when the soil is dry to the touch.
Feed your miniature lemon trees with water soluble fertilizer every third or fourth watering. Look for fertilizer that's formulated for fruit trees. If you're growing your trees in the ground, fertilize them when the spring growth season begins and every third watering throughout the summer.
Protect your miniature lemon trees from winds and frost. Bring them inside if they are in containers. If planted, place them in an area of your yard or garden where they are more protected, such as next to your home. You can also cover the outdoor trees with plastic or a blanket.
Add a 3-inch layer of organic mulch around the lemon trees in your yard to help them retain moisture. You also can add a thin layer of organic mulch or decorative stones on top of the soil around the tree in a container.
Plant or place your miniature lemon tree container in a sunny spot. Morning sun with filtered light throughout the day is perfect. Keep the tree away from cold temperatures in the winter.
Prune your lemon tree to maintain a shape you like. The only regular pruning needed is to keep any dead or dying material removed. If you notice too much new growth at the tips of any branch, cut the branch back. Make your cut 1/4-inch above a bud, cutting at a 30-degree angle.
Re-pot your miniature lemon tree every two years into a larger pot to accommodate the growth. When re-potting, trim the roots back 1/3 to encourage new root growth.