How sensitive are plants in vege to light – I’m on 18/6, can I open doors in dark hours if I need to and is total darkness needed to avoid stress?
I believe uninterrupted light is not as important in veg as it is in bloom. Although, as a general rule I do not ever interrupt my light cycle unless it HAS to happen (preventative and beneficial foliar sprays). And then, I will go into a light off room with a green light. I like the hands free headlamp. If in veg will just start that day early and continue the light cycle. The plants will just have extra light that day. The next day I return to the normal on time.