1. Look up your area's temperature and humidity. Humidity should be at least 50% and as constant as possible.
2. Find the sunniest area in your yard. Banana plants grow best with 12 hours of direct, bright sunlight each day.
3. Choose an area with good drainage. Bananas require a lot of water, but are prone to rotting if the water does not drain adequately.
4. Allow sufficient space. While banana plants are technically herbs, they are often mistaken for trees for a reason.
5. Consider growing it indoors. If your outdoors environment is inadequate, you'll need an indoor location with similar requirements (12 hours bright light and constant warm temperature and humidity).
6. Select your planting material. You can acquire a banana sucker (small shoot from the base of a banana plant) from another grower or plant nursery, or buy one online. A banana rhizome or corm is the base from which suckers grow. Tissue cultures are produced in laboratories to create higher fruit yield. If you're transplanting a mature plant, prepare a hole appropriate to its size and have an assistant help you.
7. The best suckers to use are 1.8-2.1m (6–7ft) in height and have thin, sword-shaped leaves, although smaller suckers should work well if the mother plant is healthy.[12] Big, round leaves are a sign that the sucker is trying to make up for a lack of adequate nutrition from the mother plant.[13]
8. If the sucker is still attached to a mother plant, remove it by cutting forcefully downward with a clean shovel. Include a significant portion of the underground base (corm) and its attached roots.[14]
9. A rhizome (corm) without notable suckers can be chopped into pieces. Each piece with a bud (proto-sucker) will grow into a banana plant, but this will take longer than using a sucker.
10 Trim the plant. Cut off any dead, insect-eaten, rotting or discolored sections of the plant. If most of the plant is affected, dispose of it away from other plants and find another planting material.
11 Dig a hole for each plant. Remove any plants or weeds that are growing on the planting site, then dig a circular hole 30cm wide and 30 cm deep (1ft. x 1 ft.) A larger hole will provide greater support for the plant but require more soil.
12 Place the plant upright in the new soil. The leaves should be pointing upward and the soil should cover the roots and 1.5–2.5cm (0.5–1 inches) of the base. Tamp the soil down to keep it in place but don't pack too firmly.
13 Fertilize monthly a short distance from the trunk. Use store bought fertilizer, compost, manure, or a mixture of these. Add fertilizer immediately after planting in an even ring around the banana plant and repeat at monthly intervals.
14 Water frequently but avoid overwatering. Underwatering is a common cause of banana plant death, but overwatering can cause the roots to rot.[21]