Many growers wish to grow apple trees but due to lack of space, poor soil or unsuitable weather conditions it isn't possible to do so outdoors. It is possible to grow apple trees indoors. Apple trees are large plants but can be trained to grow only up to a certain height. Apple trees in containers will require a good amount of sunlight to grow, so a large window is essential, or a porch area to place the container. Container growing allows you to move the tree indoors and outdoors depending on weather conditions. It is important to choose the right apple variety for your needs, tastes and room in the house.
Place a layer of screen mesh at the bottom of your container to prevent dirt from escaping through the holes. Julian W. Sauls and Larry K Jackson of the Florida Cooperative Extension Service suggest placing a 1- to 2-inch layer of gravel at the bottom of the container to help drainage.
Fill the container with a mixture of equal parts sand, peat, bark and vermiculite until it is 1/4 full.
Place the plant onto the layer of soil in the container, then cover the plant roots until the container is full. Leave 1/4 inch of space between the lip of the container and the top of the soil once the pot is filled. Water the soil until it is moist. Apply water twice a week for the first month, then water when the soil feels dry to the touch thereafter.
Fertilize the plant with a water-soluble fertilizer one month after planting; repeat every three months. Nutrients in balanced proportions are best for apple trees, such as 20-20-20 or 30-30-30.
Prune the tree once it is at the desired height, cutting the branches using sharp shears. Do not remove more than 1/3 of the canopy at a time.