The state of Alabama falls into zones 7 and 8 of the United Stated Department of Agriculture (USDA) Plant Hardiness Zone Map. These areas have average annual minimum temperatures of 0 to 20 degrees F. Several types of geraniums grow well in Alabama. Plant them in May in zone 7 or in April in zone 8.
Cranesbill geranium (Geranium sanguineum) thrives in zones 3 to 8. It grows to a height of 12 to 18 inches and spreads over a distance of 18 inches during spring and summer. Fine hairs cover the leaves and flower stems. The leaves have a circular outline and a width of 1 to 2 inches. They often release a pleasant scent and turn reddish with frost. The reddish-purple to pale pink flowers bloom in midsummer. Each flower has five petals and measures 1 to 1 1/2 inches.
Strawberry geranium (Saxifraga stolonifera) grows in zones 7 to 9, and thrives in Alabama. It grows rapidly to reach a height of 6 to 8 inches. Each grayish-green leaf has a heart shape, white veins on its top surface and red veins on its underside. Fine hairs cover the leaves, measuring 2 to 4 inches. The flowers develop on slender stems that grow to a length of 1 to 2 feet. The white flowers have five petals each.
Grayleaf cranesbill (Geranium cinereum) thrives in zones 4 to 9. It grows to a height of 4 to 6 inches and spreads over a distance of 10 to 12 inches. Because of its height, it works well as a groundcover. It has gray-green leaves that form mounds. It develops saucer-shaped flowers that bloom in summer and come in various colors, including pink, white and magenta.