Green light❓

So, I’ve been super busy lately & have not had the time that I would like in the garden. As a result it’s looking like a jungle. I need to get in there defoliate & tie up some branches. I’ve been thinking about getting a couple green lights to allow me to work at lights out, but I would hate to herm out my flower tent
Does anyone have any experience with green lightDoes it actually workDoes it cause any stress at all to the plants

Did he just say the D word????????

Wizzlebiz said:

Did he just say the D word????????View attachment 4934777

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Yes I’m a firm believer in a light defoliation to get more light to prime bud sites & to bottom of the plant

Also to prevent leaves from rubbing and getting water droplets on them. Would hate something like PM

Dreminen169 said:

Also to prevent leaves from rubbing and getting water droplets on them. Would hate something like PM

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Im just fuckin around. If a leaf looks at me the wrong way its gone.

I get it.

No that's a myth, green light does just fine in the photosynthesis category. Saw pics of test grows using different color lights and all of them worked and with fairly similar results. If it's PAR light, photon Energy transforms into cannaMatter regardless of the color or frequency.

alaskaman said:

No that's a myth, green light does just fine in the photosynthesis category. Saw pics of test grows using different color lights and all of them worked and with fairly similar results. If it's PAR light, photon Energy transforms into cannaMatter regardless of the color or frequency.

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So what your saying is the green light will cause the plants stress during lights out because even green light gives off PAR

All light wavelengths can absorbed by a plant, some more, UV, blue, red, far-red, and some less, green, but the green wavelengths (500–600 nm) are nearly 96% reflected by a plant when other light wavelengths are not present. So in other words, unless Chlorophyll a and b which are the primary photosynthetic pigments, are being charged by UV, blue, red, far-red wavelengths, the green wavelengths cannot be absorbed enough by a plant to cause any kind of photosynthesis! So green lights are fine to use at night, as they cannot realistically cause any photosynthesis response without being in the presense of light in the UV, blue, red, far-red wavelengths!

Dreminen169 said:

So, I’ve been super busy lately & have not had the time that I would like in the garden. As a result it’s looking like a jungle. I need to get in there defoliate & tie up some branches. I’ve been thinking about getting a couple green lights to allow me to work at lights out, but I would hate to herm out my flower tent
Does anyone have any experience with green lightDoes it actually workDoes it cause any stress at all to the plants

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I have a vivosun bulb that doubles as a light bulb, rechargeable flashlight. I've used it several times for long periods and have had no herms, but that being said, I only use it when I have situations like now, where I'm gone for a week, which happens pretty much every week, and have a lot of catching up to do, and I'm always nervous while doing it.

My wife got me a headtorch which shines green. Worked on my plants when I grew some photoperiods without any issues. Piratebugs explanation is much more scientific Ive only got my experience to work on

I've used a green headlamp for years without any problems.
I've run my lights through the night so the lamps been used 1000s of times.

Doesn't green mean its not absorbing that colour?

Plants get the moon in nature and some genetics are more sensative than others, though also, green light is used by the plant more than anticipated. Yes the leaves are green because the reflected spectrum has more green in it than other colors, but the plant leaf (leaf, not pigment extract in solution) still absorbs green light rather efficiently. Compared to red or blue, it's absorbed less, thus the green hue reflected back, but green is still absorbed around 70%-80%. In fact, green light stimulates photosythesis at similar rates in plants as light from the higher energy wavelengths (<500nm).


Tbh I think it has less to do with photosynthesis and more to do with hormone triggering. People flood FR at the end of days because its supposed to put the plant to sleep and then in the morning the high red portion of the spectrum (compared to FR portion) works to reverse the pr-pfr ratios resultant from the lights off duration & FR EOD treatment, which begins to slowly "wake-up" the plant. I think that's somewhat of how it goes, though other colors play a roll as well and I may be overlooking big things (I could be mistaken, so best to double check what I'm saying). When using green head lamps, maybe the lack of red or other colors is helping reduce stress, but maybe the lack of intensity is to blame for the lack of stress?

I'd still tread lightly but with the knowledge the moon can get rather bright as well. But then again, who knows? Maybe the moon herms them all as well? To me it seems like a great survival technique. Herming. So it could be that the fact the moon shines during the night in nature, doesn't actually end up contradicting the "absolutely no light leak" school of thought after all (because this time its assumed that the moon is herming them). I surely can't say for sure. I've had entire fields herm on me before but didn't know if it was genetics or enviro, though maybe it was the moon after all?

Ultimately the green light is useful to the plants during the day, so I'd be cautious about intensity during the night, though if you were to pick 1 color to be risky with, green is the most reflected and also the most visible to humans, so perhaps the best option for a less than ideal practice?

Humans see green the best

Dreminen169 said:

So what your saying is the green light will cause the plants stress during lights out because even green light gives off PAR

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Yes for sure.

Theres a sensor light near my plants so folks can see to unlock the door late at night.
Dont have the option to remove the light, so i swapped in this 530nm Green LED, in attempt to reduce stress whenever it comes on.
So far i havent noticed any negative effects, no hermies. But in the past i have definitely experienced plants hermi with a normal light bulb.
So i guess its doing what its supposed to ‍