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How to use plants to keep mosquitoes away
Grow catnip in your yard if you don't mind cats.
Some people find that catnip is even better at repelling mosquitoes than chemicals, such as deet. Best of all, catnip is safe.

Choices:
[a]. Birds and other predators can smell catnip from a distance and could die from it. Cross-pollination? In the wild, about six to eight times a year, you can purchase catnip from local chain stores.;
[b]. It can even be grown next to plants that typically attract mosquitoes as a deterrent. Keep in mind, however, that the catnip will attract cats into your yard.;
[c]. Experts recommend that the outdoors are good places to place your catnip plant, such as your house. Ideally, an 8 foot by 12 foot (21.6 m x 16 m) section of your home should have a catnip plant.;
[d]. Cats are territorial and cannot get exactly what they love. They'll react negatively to something new, potentially causing serious bodily harm.;
[b].