Choose dwarf varieties for indoor growing.
Forget growing deciduous fruit trees, such as apple, pear and cherry trees, indoors. These trees need a chilling period between 32 and 40 degrees every winter to produce fruit in the spring. Instead, focus on tropical and semi-tropical fruit varieties that thrive in warm conditions. Does this Spark an idea?
Types
Try dwarf citrus trees, such as the improved Meyer lemon, which is actually a sour orange, or kumquats and limes. Citrus trees produce fragrant blossoms and attractive glossy leaves in addition to several pounds of fruit each year, depending on the variety. Grow bananas, pomegranates, pineapple, avocado and papaya indoors, as well, keeping in mind that these plants probably won't fruit as reliably indoors.
Containers
Choose a plastic, clay or metal container that holds at least 5 gallons of soil. Ensure that the pot has adequate drainage holes and consider setting it on a rack with wheels so you can easily move it outside in the spring or for maintenance tasks. Fill the container with a mixture of 4 cubic feet peat moss and 2 cubic feet each compost, sand and perlite. Add 1 lb. dolomite lime and 3 1/2 lb. 17-6-10 fertilizer. You can alternatively buy a lightweight potting mixture that contains sand and peat moss. Container grown trees need well-drained soil to prevent rotting and disease problems.
Regular Maintenance
Set fruit trees outdoors in full sun during the summer and water them frequently. Apply an acidic or balanced fertilizer in March, June and August. Bring the trees indoors when temperatures drop below 40 degrees Fahrenheit in the fall. Place them in a bright room that receives at least five to six hours of sunlight per day or consider installing a grow light. Allow the soil to dry out slightly and water less frequently.
Problems
Fruit trees grown indoors are more prone to insect infestations due to the lack of natural predators. Mist the tree frequently with a spray bottle filled with water to remove aphids and provide moisture. Scrub the leaves with a damp sponge to keep it clean. If the insect infestation is severe, take the tree outdoors and apply an insecticidal soap. Citrus trees grow best indoors in a cool, slightly humid room.
Tags: Citrus trees, cubic feet, fruit trees, peat moss, trees indoors, trees need
