Citronella oil is popular as a 'natural' insect repellent. Its mosquito repellent qualities have been verified by research, including its effectiveness in repelling Aedes Aegypti (dengue fever mosquito). To be continually effective most citronella repellent formulas need to be reapplied to the skin every 30–60 minutes.
This plant has also been known to have superb anti fungal properties and is used in the perfumery industry for its high oil content.
Catnip is one of the most powerful mosquito repellant plants . Recent studies have shown that it is ten times more effective than DEET at repelling mosquitoes. It is a short lived perennial and is easy to grow from seed, and quickly reseeds. Aside from its intoxicating effects on cats, the leaves make a very soothing tea.
Soil : Light, well drained soils
Sunlight : Plant is quite hardy, Can be kept both indoor / outdoor (6-8 hours)
Water : 30-80ml (6 inch pot)
How do I use these plants to repel mosquitoes?
With all of these plants, the leaves must be crushed to release the aroma. Otherwise mosquitoes cannot smell them. With rosemary and catnip, you can simply crush a few leaves and rub on your skin and clothing to enhance the effect.
What are other plant based solutions to repel mosquitoes
The other kind of mosquito plant is Agastache cana. Its common names include Texas hummingbird mint, bubblegum mint, giant hyssop, or giant hummingbird mint. As you might guess, hummingbirds are quite attracted to it.
Another slightly smelly but organic way to get rid of them is Garlic which is the main component in many herbal remedies. Mosquitoes hate it. Gardeners who eat lots of garlic may find that they scratch those mosquito bites far less. Of course, you would have to eat a lot of garlic and you may find that you repel more than just mosquitoes.
Nevertheless, organic gardeners use garlic sprays, powders and plants to help deter the creatures. It may not reduce their numbers dramatically, but when coupled with other natural combatants, you may see a reliable reduction.
So, next time you have an opportunity to plant, consider using some of these attractive plants to do more than just enhance the landscape.
ABOUT THE GUEST WRITER

Shaan Lalwani
SHAAN LALWANI is the 25 year old owner of the rapidly expanding nursery named Vriksha Nursery which is based in Mumbai, India . This nursery was passed down to him by his parents who fully supported him in getting his B.Sc degree in Horticulture and in attending one of the best landscape schools in the world for an M.A. in landscape management at University of Sheffield,U.K.
Shaan is available through his blog Vrikshanurseries.blogspot.com where you can get weekly updates. For any questions regarding the gardening world, he may be contacted at +91-9820704069 or at shaan_lalwani[at]hotmail.com
Vriksha nursery strives to change the face of urban gardening in India with over 25,000 gardens executed in Maharashtra/Goa/Gujarat. We have a team of dedicated professionals who will leave no stone unturned to give your gardens the utmost quality attention. Vriksha nursery has been synonymous with innovation – be it set landscaping (over 5000 teleserials/movies/adfilms), temporary landscapes (over 2500 exhibitions and weddings), ikebana flower arrangements, urban farming, rooftop gardens, living walls etc.
http://www.ecowalkthetalk.com/blog/2011/06/10/6-beautiful-balcony-plants-to-control-mosquitoes/
With Best Regards. ?
Aiwaah