Some varieties get over twenty feet tall.

Feb 03, Overwintering a Banana Tree Outside If this is the case, cut the plant down to 6 inches above the ground and either apply a thick layer of mulch or store those in containers in a cool, dark place for the winter, watering it very minimally. You can also choose to. Fall: To keep your banana plant happy it needs a little bit of preparation for winter in the fall.

Right before or after the first frost you should cut the tree back to about one foot tall. Make sure to cut the trunk at an angle so water doesn't pool up all winter and start rotting the crown.

Watch the banana plant over the winter. Cold snaps with temperatures below 28 degrees Fahrenheit will kill a banana plant to the ground. If this happens, cut the plant down to the mat, and it will likely resprout when warm weather returns. Jan 13, After you harvest your banana crop, cut back that stalk to the ground, slice it up, and use it as mulch around next year’s stalk.

Some varieties get over twenty feet tall.

Banana trees love mulch at all times of the year to protect them and insulate them from the winter’s cold and retain moisture during summer’s treefelling.barted Reading Time: 3 mins. Oct 03, Overwintering a Banana Tree Outside. Overwintering banana plants is a different story if they’re too big to fit inside.

If this is the case, cut the plant down to 6 inches (15 cm.) above the ground and either apply a thick layer of mulch or store those in containers in a cool, dark place for the winter, watering it very minimally. You can also choose to leave foliage on hardier types over winter.