How to Build a Sustainable Grow Tower – Grow 40 plants in 4 Sq. F food, Survival Food, Survival Skills, Survival Tips, Videos By Jared On February 11, 2016 No Comments How to Build a Sustainable Grow Tower – Grow 40 plants in 4 Sq. F Special Offer: Save Up To 50% On J5 Tactical Flashlights Today! Only on Amazon.com facebook twitter pinterest Facebook Comments