[QuarterbackMo]

Maybe outdoors is different and it’s one of those things we don’t understand about the moon but indoor crops can not take it.

 

[One drop]

Maybe outdoors is different and it’s one of those things we don’t understand about the moon but indoor crops can not take it.

Use a green light under 530 nm and your good to go have been doing this for 20 years now no nanners at all

 

[QuarterbackMo]

Use a green light under 530 nm and your good to go have been doing this for 20 years now no nanners at all

Absolutely green light isn’t the light I was referring to here lol.

These guys are saying on this post they have light beaming in from the veg room and nothing is going wrong I find that hard to believe.

 

[QuarterbackMo]

Use a green light under 530 nm and your good to go have been doing this for 20 years now no nanners at all

I’ve never had a light leak with any kind of led / hid light, sunlight, light bouncing through ducts, red lights on equipment, or even light slips for that matter just be ok . Gtfo with that I don’t even wanna hear it idk who is spreading that lie and why.

 

[DB_Creaper]

My indoor grow used veg nutrients flushed and used filtered water I have light leak from TV screen reflecting off floor, mine are in flower and for a first ghetto set up grow I don't think the TV lights reflect is having any reaction on my 12 hours of "night" .

 

[MisterDunk]

My indoor grow used veg nutrients flushed and used filtered water I have light leak from TV screen reflecting off floor, mine are in flower and for a first ghetto set up grow I don't think the TV lights reflect is having any reaction on my 12 hours of "night" .View attachment 2294977View attachment 2294979View attachment 2294980

Welcome to the farm DB

 

[DB_Creaper]

Welcome to the farm DB

The big flowering on is THC BOMB hybrid, medium MotherEarth Groundswell,mg, organic remedies. Seed/veg nutrients organic 24/8/14 then 1 week flush not using bloom boost or anything for flowering. I have setup in closet and at "night" I hang a small blanket light gets threw from top and bottom. Will take pic and show

 

[DB_Creaper]

It's a closet grow with no doors just a blanket and this is the light leak I get with normal lamp bottom pic and TV is top pic. Not a single hermie and again no blooming nutrients. So IMHO light leak is dependent on strain and training. But I will be putting this to the test when tent comes in.i will do a tent, closet and out in the open grow same light cycle nutrients. Just different exposure to night time light.

 

[ParaffinMuffin]

Maybe outdoors is different and it’s one of those things we don’t understand about the moon but indoor crops can not take it.

Literally walked into a dark flower room 3 hours ago, turned the lights on, did what I wanted to do, turned lights off, walked out. Ask me if I care. (I don't, and never will care about a 6 watt light bulb turned on for 5 minutes during bloom, because my plants never have.)

 

[diereckeddank]

For what it's worth, last year someone babysat mine when I went away. No tent, a room. I switched them to 12 12 the day I left, first thing I did when I came home was check the girls. Opened the door and the fucking rooms light bulb had been on since day 1 when they went in there ! For 2 weeks !!!

Strangely they all initiated flower under what we'd say is 24 hour light , but obviously 12 hours was only a 60w warm white bulb .
I must say, I've never had buds unset that early from 12 12.

Strange plants, these things ...

 

[Audra434]

I definitely believe that light leaks make a difference. Keeping in mind that different strains are going to respond differently. One person wrote that they’ve seen a major/medical grow operation have swinging doors between their veg room and flower room, with people going through them all day and it didn’t make a difference. I’m thinking those plants might have been autoflowering not photoperiod. The whole plant growing world says that light makes a difference, why would they make that up? It definitely stresses plants, no matter what stage. I’ve experienced this myself. My best plants grew in total, absolutely complete, darkness. Keep on growin everyone!!

 

[Marcus11]

That sounds plausible as well since its reflected light off the moon... Great discussion guys appreciate the input.

So do you think people get a little carried away when they say it MUST be light proof? I can understand not wanting your veg lights to bleed into the bloom room because they are strong as hell...

What exactly are the negative consequences of light getting in during the dark period?

Nope not carried away at all
.....The moonlight is simply far too weak to trigger a cannabis plant’s photoperiod response the way artificial light can.
Cannabis detects night length using light-sensitive pigments called phytochromes. To interrupt flowering or cause stress/re-vegetation, the plant generally needs sustained light intensity above a certain threshold. Even a dim household LED, streetlight, or light leak close to the plant can exceed that threshold because the source is nearby and concentrated.
Moonlight looks bright to human eyes because our vision adapts well in darkness, but objectively it’s extremely dim:
Full moon illumination ≈ 0.1–0.3 lux
Typical indoor room lighting ≈ 100–500 lux
Direct sunlight ≈ 50,000–100,000 lux
So full moonlight is hundreds to thousands of times weaker than the low-level artificial light that commonly causes flowering disruptions.
Also, cannabis evolved outdoors under lunar cycles for millions of years. If moonlight routinely forced plants back into vegetative growth or caused hermaphroditism, wild populations would be biologically unworkable.
That said, some growers claim very sensitive cultivars can react slightly to repeated bright full moons, especially combined with other stressors, but controlled evidence for major flowering disruption from natural moonlight is weak. Artificial light pollution is the real issue.

 

[DaGreenBlazer]

For what it's worth, last year someone babysat mine when I went away. No tent, a room. I switched them to 12 12 the day I left, first thing I did when I came home was check the girls. Opened the door and the fucking rooms light bulb had been on since day 1 when they went in there ! For 2 weeks !!!

Strangely they all initiated flower under what we'd say is 24 hour light , but obviously 12 hours was only a 60w warm white bulb .
I must say, I've never had buds unset that early from 12 12.

Strange plants, these things ...

This is a good example for showing what I believe, which is that light levels the plant senses during flowering are relative to the environment it started flowering in.

To me, I've always seen it more like as long as there's enough relative difference in light intensity between the day & night periods AND as long as that relative difference stays the same throughout whole flowering period then the plants will flower based off the difference rather than the fact of it needing to be a fully bright daytime & a completely dark night time.

If you switch them to flower and their first night times are total darkness, then as Marcus11 says, any little light leak can cause disruption, and yes then you do need to ensure total darkness at night for the whole flowering period.
But if they're put into flower with light leaks already present, then they will adjust to that relatively and as long as no additional or brighter light leaks happen throughout flowering, then the plants won't be any the wiser.

As per your example, switching from whatever high wattage HPS or LED in day time to just a 60W domestic bulb at night still created enough relative difference in light intensity between day & night that the plants could start flowering and thus that was the relative difference they were used to. But, if you'd flowered as normal in total darkness, waited 2 weeks and THEN switched the 60W light on at night, that would've caused way more disruption.
It's similar to another example which is, by me alot of guerilla growers will do outside grows along the sides of motorways - the motorways all have street lights shining at night, but again because the relative difference between daytime sun & night time motorway lights is large enough then plants can start flowering fine and the motorway lights at night don't affect them.

 

[IgnorRayMuss]

So i was talking with a friend who told me the whole "you must have a 110% light proof chamber and not disturb plants during dark cycle of flowering" is pretty much a myth. His basic reason was moon light, which made total sense. In a natural environment plants are going to be exposed to SOME light during the 12hr dark period, outside it is never truly 100% dark at night.

He said he has also taken plants out of flower and put them back into veg without any issues.

So i ask you all, what is the deal with having a light proof chamber for the dark time in flowering? Mine is like 99% but there are some tiny seems between the zipper doors that let in minimal light (which i will probably cover up with some plastic sheet). I haven't really been able to find any hard evidence why people keep suggesting this, only thing i see mentioned here and there is that stressing plants can cause them to hermie, which obviously none of us want.

I grew up in a greenhouse family business. We produced tens of thousands of poinsettias every year for Christmas. Like cannabis, poinsettias are photoperiodic. We never kept any lights on under the 3 acres of plastic greenhouses. We never had any lights in the acre parking lot and we made sure the woods around the property remained as a break from the suburban lights nearby.
Sure on moonlit nights you could walk through the 18" wide aisles of the production houses no problem, but that was more the exception than the rule. Our poinsettias never failed to color up (they have colorful bracts, the blooms are the tiny yellow bits in the center). Other suburban growers weren't so lucky, lost their light barriers, street lamps were erected nearby etc and lost their ability to produce this big crop.
I have a friend in DC who can never get his bud in his outdoor grow to ripen because of light pollution. Winter sets in before they can fatten. DC is not dark at night. It can and will mess up your grow.
There are light leaks and there are light leaks in a tent in a room that's constantly bright at night. We growers can not guarantee optimal conditions to our plants 100%of the time, but light is probably the easiest variable to control and if you want good buds don't pollute your darkness.
It's your grow, your plants your choice, your roll of the dice every time. Load the dice in your favor.

 

[Blimburnseeds]

Good rest means good buds

 

[IgnorRayMuss]

Good rest means good buds

That there is the heart of why I don't trust autos. They don't need the good rest that photos use to make the plant defenses that we grow them for.

 

[bushpusher]

Nope not carried away at all
.....The moonlight is simply far too weak to trigger a cannabis plant’s photoperiod response the way artificial light can.
Cannabis detects night length using light-sensitive pigments called phytochromes. To interrupt flowering or cause stress/re-vegetation, the plant generally needs sustained light intensity above a certain threshold. Even a dim household LED, streetlight, or light leak close to the plant can exceed that threshold because the source is nearby and concentrated.
Moonlight looks bright to human eyes because our vision adapts well in darkness, but objectively it’s extremely dim:
Full moon illumination ≈ 0.1–0.3 lux
Typical indoor room lighting ≈ 100–500 lux
Direct sunlight ≈ 50,000–100,000 lux
So full moonlight is hundreds to thousands of times weaker than the low-level artificial light that commonly causes flowering disruptions.
Also, cannabis evolved outdoors under lunar cycles for millions of years. If moonlight routinely forced plants back into vegetative growth or caused hermaphroditism, wild populations would be biologically unworkable.
That said, some growers claim very sensitive cultivars can react slightly to repeated bright full moons, especially combined with other stressors, but controlled evidence for major flowering disruption from natural moonlight is weak. Artificial light pollution is the real issue.

This - "Typical indoor room lighting ≈ 100–500 lux" looks very low. Do you mean "100 to 500 watts'?

 

[Glomus]

So i was talking with a friend who told me the whole "you must have a 110% light proof chamber and not disturb plants during dark cycle of flowering" is pretty much a myth. His basic reason was moon light, which made total sense. In a natural environment plants are going to be exposed to SOME light during the 12hr dark period, outside it is never truly 100% dark at night.

He said he has also taken plants out of flower and put them back into veg without any issues.

So i ask you all, what is the deal with having a light proof chamber for the dark time in flowering? Mine is like 99% but there are some tiny seems between the zipper doors that let in minimal light (which i will probably cover up with some plastic sheet). I haven't really been able to find any hard evidence why people keep suggesting this, only thing i see mentioned here and there is that stressing plants can cause them to hermie, which obviously none of us want.

So I used to run huge outdoor grows in California and would consistently get better flower structure and overall quality from light deprivation versus full season outdoor. I had a theory that the consistency of the light deprivation helped trigger flowering better then the natural environment did, Sometimes outdoors the plants aren't sure of they are ready to flower when its time, weather its from moonlight or weather conditions etc. With deps you have a solid 12/12 black out darkness versus sunlight. All I know is something about that total darkness did make a difference the in light dep flower.