As new banana (Musa) leaves grow from the center of the plant, the outside leaves get dry and turn brown, causing bananas to look ragged and unsightly. A few dead leaves won't affect banana plants, but they do detract from the lush, visual effect and can harbor insects, especially when growing outdoors. Bananas take a year or more to bloom in frost-free, tropical climates, but as houseplants, and in Mediterranean and temperate zone climates, bananas make ideal non-blooming foliage plants. Trimming non-blooming banana plants will keep your plants looking healthy and lush.
Select brown, dead leaves from outermost layers of the plant. Each banana leaf extends down the base of the plant. The lower part of each tightly wrapped leaf forms the sturdy, fleshy banana stalk.
Cut the the leaf stalk where it branches away from the plant using a clean, sharp knife. Leave 1/2 to 1 inch of the stalk sticking out from the side of the trunk.
Cut broken leaves at the break point using sharp shears. Wind and animals can easily break the fleshy leaves. Once damaged, a banana leaf won't repair, but you can tidy up the plant to prevent further tearing.