Question
We are growing a small garden around our housing colony. We would like to suggest type of plants/ herb that can be grown so that that will repel insects like muskitos, rodents, snakes away from the house / walk way

Also we would you suggest the type of plants that can be grown to purify the atmosphere both indoor / outdoor.

Ours is a typical tropical place
I am from Bangalore / India.
We are doing this service to a resident colony in Bangalore , South India that is coming up for old people who will spend their time away from relatives.

Thanks

Sundara Rajan

Answer
Sundara,

This website from Ohio State University has a lot of information for you:

http://ohioline.osu.edu/hyg-fact/2000/2145.html

Following is a list of 10 plants that clean the air.

Common Name             Scientific Name  
Bamboo Palm             Chamaedorea Seifritzii  
Chinese Evergreen       Aglaonema Modestum  
English Ivy             Hedera Helix
Gerbera Daisy           Gerbera Jamesonii
Janet Craig             Dracaena "Janet Craig"  
Marginata               Dracaena Marginata  
Mass cane/Corn Plant    Dracaena Massangeana  
Mother-in-Law's Tongue  Sansevieria Laurentii  
Pot Mum                 Chrysantheium morifolium  
Peace Lily              Spathiphyllum "Mauna Loa"  
Warneckii               Dracaena "Warneckii"  

This web site has more info from NASA on plants cleaning the air:

http://www.zone10.com/tech/NASA/Fyh.htm

Good luck.
Darlene