I came to a bit of conclusion with how important (or not) 100% darkness is in photo periods and id love to hear what everyone elses experiences are.
Outdoor plants flower regardless of street lights or the changing moon light shining on the plant. I’ve seen lots of debates on why this happens, such as different light spectrums from the moon or street lights being too dim to have an effect (if far enough away i guess)
Indoor growers and articles often say it needs to be 100% darkness, such things like ‘a small led on a power lead or a fan can cause a plant to hermie, reveg etc.’
My experiences seem to tell me: its important the light at night - needs to remain very similar to what the plant is used to from the moment it is born - so if there is weak street lights, moonlight, power leds or small light leaks in your grow space then its okay… as long as its remains similar to what the plant knows as “night time”… No sudden turning the lights on at night or shining a torch on top of leaves kinda thing or outdoors avoid bright streetlights nearby and any faulty/flickering lights and seems you should be okay.
But i love the debate this topic raises, there’s people that agree and some fully reject the idea.
Whats your experiences? :).