Up here we have greenhouses for most plants. When the nursery plants arrive for spring planting in May, many of the annuals and some of the perennials are put outside but many remain in greenhouses or under overhead cover to protect the plants from too much sun and hard rain. Even the temporary nurseries set up at the larger grocery stores have temporary greenhouses and some temporary shelters leaving only the hardiest of annual and perennials, shrubs, and trees outside full time.
