These are trees that require a cold but protected dormancy and should never be grown in the house. Outdoor Bonsai in New England stay outdoors April through November,and then are kept in our cold frames for the winter. Many of our customers store outdoor bonsai in unheated garages, bulkhead or unheated rooms. We have an extensive selection of species that are available all year. We are always happy to take addition photographs of any of our trees.