Also known as the mosquito plant and sometimes referred to as citrosa, the citronella plant is a variety of geranium known as Pelargonium citrosum. Its scented foliage is reminiscent of citronella oil.
Citronella plants feature medium-green, lacy leaves and pink flowers that bloom during the summer. They have an upright growth pattern, reaching between 2 to 3 feet tall. Although the foliage exudes a pleasant citronella fragrance when bruised, it does little to keep mosquitoes at bay.
Gardeners must plant citronella plants from the nursery as soon as all danger of frost passes. They thrive in partial shade in hot locations but should be planted in full sun along the coast and in other areas that enjoy relatively mild seasonal temperatures.