How Much Light Can Cannabis Plants Take? Ed Rosenthal on PPFD and CO2
Grow guides say vegetative plants want 500 to 800 PPFD. Outdoors, plants vegetate in summer sun at more than twice that and thrive. Ed Rosenthal ran two casual experiments to see which side the plants agree with, and explains why CO2 is cheaper than watts. How much light can I give my indoor plants?Jerry G., […]