Banana trees grow best in soils with pH levels between 5.5 and 6.5. This pH level is slightly acidic and has high nutrient levels. It is easy to determine the pH values of your garden soil with a simple test that can be purchased from local garden centers. If you require more detailed test results, contact your local university cooperative extension for laboratory testing.
It's possible to adjust pH levels of your garden soil. If you wish to increase the level then add lime, the amounts you add depend on soil type and current pH level. Adding sulfur to your soil will reduce pH levels, again you will need to adjust the amount you add to soil depending upon current pH level.
Ideal soil for growing bananas is well-drained, but with good water retention capacity. Bananas grow best in locations receiving 100 inches or more rainfall per year. If rainfall is insufficient, the trees will need irrigating. Bananas grow best in full-sun locations and can be susceptible to wind damage.
Miniature banana trees for container growing are available and dwarf lady finger (Musa "Dwarf Lady Finger") is one variety that may grow happily in the yard during summer months and transfer to the home environment over winter. This dwarf tree grows no more than 5 foot tall and should fruit eight to 10 months after it has been planted. Dwarf lady finger banana trees are hardy to USDA zone 8.