Very few tree fern species are considered hardy. This is possibly the main reason why many plant lovers prefer to put it in the apartment. But whether outside or inside - tree ferns should be overwintered.
Most tree ferns require winter protection; except hardy varieties like the New Zealand fern
Overwintering strategy outdoors
Tree ferns such as the Australian or Tasmanian tree fern tolerate certain sub-zero temperatures. They can be protected in winter in the following ways:
- Cut the fronds in half or tie them together
- Cover the trunk area with straw mats
- Cover root area with bark mulch
- Cover the ends of the fronds with fleece
Overwinter at home in a pot
A tree fern that has been a houseplant in the living room throughout the summer should be moved to a cool, unheated room in late fall. Temperatures between 5 and 10 °C and high humidity are ideal. Don't forget to water!
tips and tricks
Tree ferns planted on the balcony can be overwintered by placing the pot on a block of wood or polystyrene, wrapping it with fleece and placing it against the wall of the house.