Many gardeners know that heartbreaking feeling that comes with autumn frosts. The end of the season does not have to mean a painful parting with plants, however. You can move many of your favorite container annuals and tropicals inside, where they’ll survive as houseplants until spring. Before you move your plants, be sure you have the right location. The majority of varieties need a bright spot (as most grow in full sun outdoors). They also like extra humidity; indoor air is typically dry and the leaves will turn brown and crispy if there’s not enough moisture in it. Although most plants prefer a cool location — in the 60s during the day and 10 degrees lower at night — they will tolerate warmer conditions.
Source: Better Homes & Gardens