Geraniums (Geranium), herbaceous perennials in the Geraniaceae plant family, originated in Asia, Eastern Europe and the United States. Geranium plants often work well for beginning gardeners because these hardy plants rarely suffer from pest or disease problems.
Common geranium plants include the wild geranium (Geranium maculatum), the bigroot geranium (Geranium macrorrhizum) and the hardy geranium (Geranium phaeum).
Wild geraniums bloom in various shades of pink and purple. Hardy geraniums display deep purple to maroon blossoms, while the bigroot geraniums bloom dark magenta flowers.
Hardy geraniums bloom from May through August. Wild geraniums display flowers in April and May, while the bigroot variety flowers from April through June.
Geranium varieties typically range from 12 to 30 inches in height with spreads between 18 and 24 inches.
Bigroot and wild geraniums typically grow well in USDA hardiness zones 3 to 8. Hardy geraniums generally thrive in zones 5 to 7.
Gardeners often plant geraniums in woodland, wild, cottage and native plant gardens. These plants also work well as ground cover for smaller spaces.