Maximum Yield USA 2015 January | Page 72

by Sara Ellio tt tips & Tricks Whether you’r e a bumper cro growing a tomato plant in p powerful frie of lettuce in the greenho your home or nd u the ups and d to the hydroponic growe se, gravity is a r. owns of gravit y-fed hydropo Sara Elliott shares nic systems. 70 Maximum Yield USA  |  January 2015