Pistachio trees are native to desert regions where it is very sunny, hot and dry. However, it can also get very cold there at night, so that older trees can survive sub-zero temperatures for a short time.

Protect pistachio trees from the cold in open ground

Pistachio trees should only be planted outdoors in locations where it is very sunny and warm. The soil should be well dry. If the moisture is too high, the roots will rot.

Winter temperatures must not fall below minus ten degrees. Then the branches and roots freeze.

To be on the safe side, an outdoor pistachio tree should be protected from the cold in winter.

Winter protection for the pistachio tree

Cover the soil with foil or jute bags that will protect the soil from heat loss. Mulch blankets are not so good because they provide the soil with too many nutrients.

Protect the branches with straw or other suitable material. But make sure that the tree continues to get enough air.

You do not have to water the pistachio tree in winter. The tree needs almost no moisture during the dormant period.

Overwinter potted plants

If you grow your pistachio trees in pots, you should put them outdoors in summer. This is the only way the flowers can be pollinated by the wind.

In winter, place the buckets in a frost-free place. Temperatures around ten degrees are sufficient. Because the tree loses its leaves during the dormant period, it doesn't need as much light as it does in summer.

Bring the pistachio trees indoors at the latest when the temperatures outside are approaching freezing point.

Suitable wintering options for pistachio trees

  • Frost-free basement entrance
  • dry basement room or
  • Attic with small window
  • corridor window
  • Unheated conservatory
  • north window sill

Care during the winter

Let the potting soil almost dry out over the winter and only water very little when the potting soil appears completely dry.

Check the tree for pest infestation from time to time.

tips and tricks

Because the temperatures in Germany are too cold, it is best to plant your pistachio trees grown from pistachio seeds in a bucket. The trees in the house can be wintered well in low temperatures.

Category:

Vegetable garden