Annual Flowers for Indoor Use Horticulture Annual Flowers for Indoor Use Annuals by definition are plants that survive just one growing season. Some annuals are actually perennials or even woody shrubs in other parts of the country but, because they are not frost tolerant, cannot survive our winters.
Many gardeners try to avoid the inevitable by overwintering some of their prized annuals indoors.
Some annuals overwinter easier than others. For example, many gardeners successfully overwinter their geraniums from year to year. Another popular annual, impatiens, can also be grown indoors. Take stem cuttings from desired varieties in late summer. Root cuttings in perlite or coarse sand.