There are multiple types of shrubs that repel mosquitoes, including citronella and ageratum. Other mosquito repellent plants include catnip, lemon verbena, lemon-scented geranium, marigold and horsemint.
Citronella is an efficient mosquito repellent and the plant is often used in commercial mosquito repellents. A perennial plant, citronella can be grown in the garden or in a pot. Ageratum is another ingredient often found in commercial mosquito repellents. This is a plant that is easy to care for, as it thrives in most kinds of soil and needs little watering. Other plants that repel mosquitoes include clove, cedars, bee balm, basil and lemon thyme.