Fragrant foliage is a natural mosquito deterrent, which is why 'Citronella' Pelargoniums are commonly called "Mosquito Plants"
When fighting mosquitoes, one can use all the help possible. So, when I decided to use Citronella Scented Geraniums to combat bugs on my patio, I went all out. I grew a hedge about twenty feet long and four feet wide and high. Starting with large plants each spring, this hedge quickly filled out with luxurious scented foliage.
My plan was to keep the swarming mosquitoes away from our patio. To activate the scent producing oils, I would sweep the geraniums with a broom. (Brushing or bruising the leaves releases the herb’s natural perfume.) Citronella fragrance pleasantly filled the air and it actually did keep mosquitoes at bay!
Each fall I would dig, trim, and pot my plants in three gallon pots for over wintering in a greenhouse. Scented geraniums do make an excellent houseplant. Kept in a sunny window they will grow slowly; and then you can move them outside in spring. If thinking of expanding your herb gardening experience to include fragrance; do not forget scented geraniums.