This plant is also known as catmints, which is a milder version of the famous catnip. As you guessed it, the nepeta plant also attracts cats like flies on honey. On the other hand, it does a successful job at repelling mosquitoes. The effect is due to nepetalactone, which, according to researches made, can be up to 10 times stronger than DEET – an active ingredient in most commercial repellents. It’s still not established whether this ingredient or the smell of catmint repels mosquitoes. Some of the other advantages of this perennial flower are the easiness to grow and the fact that it attracts bees.