While the banana tree, particularly the Musa basjoo species from Japan, is popular in France for adding an exotic touch to gardens, it is not well-suited to cold climates.

Here’s a guide to help your banana tree survive winter and recover from frost damage.

Can a Frozen Banana Tree Survive Low Temperatures?

Banana trees can grow up to 3 meters in a single season, but they are highly sensitive to cold. Their growth stops during the cold season and they can freeze at temperatures below 15°C. Severe damage occurs at 0°C, but the rhizome can withstand temperatures down to -12°C if protected. It is advisable to either bring the plant indoors or provide proper protection during cold spells.

How to Save a Banana Tree That Has Frozen?

Should You Cut a Frozen Banana Tree and How?

Assess Frost Damage:

  • The first signs of frost damage are brown, black, or dry leaves.
  • This doesn’t mean the tree is dead. Cut off all damaged leaves to help the plant recover.

Pruning Instructions:

  • Use sharp pruning shears.
  • Cut leaves just above the stem, making an angled cut from the center of the stem. This prevents moisture from entering the stem and causing rot.

How to Make a Winter Cover Against Frost?

Protecting Your Banana Tree:

  • Horticultural Fleece: Wrap the plant, ensuring no parts are exposed, but not too tightly.
  • Additional Layers: Add burlap over the fleece for extra protection.
  • Severe Cold Protection:
  • Use chicken wire around the base of the plant, secured with stakes.
  • Fill the wire cage with straw for insulation.
  • Cover the plant’s crown with a plastic sheet to protect against snow and rain.

Preventing Frost and Cold Damage and Caring for a Banana Tree in Winter

Tips to Help Your Banana Tree Survive Winter:

  • Heating Lamps or String Lights: Use these around the plant to provide warmth.
  • Watering: Water the tree well before a temperature drop to insulate the roots.
  • Relocation: Move the plant to a sheltered spot, like a greenhouse or veranda, if possible.
  • Mulching: Apply a 10 cm thick layer of organic mulch around the base to protect the rhizomes. An additional layer of soil can offer further protection.
  • Avoid Fertilizing: Do not fertilize the banana tree in winter as its growth stops below 15°C, making fertilizer unnecessary and potentially harmful.

By following these steps, you can help your banana tree survive the winter and thrive again in the warmer months.

Garden Tips and Tricks