DORMANT PERIOD - The time when the tree has naturally stopped growing due to low temperature and short day length, normally winter in the United Kingdom.

Dormant trees may be kept inside, for example a garage with no heating and little light as the tree does not require any. Make sure however that the roots of the tree are kept moist as the roots will dry out completely and the tree will die.

As soon as temperatures rise the tree should be removed from the darkened place as they begin to grow.