XeFarm Rooftop Organic Farming 1. XeFarm will setup and teach you to do Organic Farming on your Rooftop. 2. Grow and eat Organic Vegetables from your Rooftop and Garden. 3. Easy way to stay away from Pesticides and many Harmful Chemicals. 4. Rooftop Farming potentially contributes to a decrease in Biodegradable Waste. 30.6.2017 ~ Kolkata, West Bengal ~ 9.3 km.