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best color to paint marijuana grow room

Safe Light For Entering Dark Grow Room

littlegiant
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potpimp
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GreenVet
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0calli
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Voidling
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cowell
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It wouldn’t be green to us then. The reason you see “green” is because that’s the part of the spectrum not absorbed – it’s reflected.
If they put it LED – then it must be because it’s pretty.
It’s basic science though.. Why do they add it to LED? beats me. NASA (where all these LED “grow lights” get any credibility) uses red spectrum LEDs.. I figure they’d know what they were doing over someone in China selling $800 light brites.

EDIT: And I have used a 13 watt green CFL party light ($4 at Crappy Tire). It throws enough light to see what you’re doing while you are in there.

Voidling
Well-Known Member

Just because we see it as green does not mean it doesn’t absorb some green. Black objects absorb all colors yet still reflect visible light.

Pretty sure NASA used red and blue as those are the main peaks of photosynthesis, but that was just the beginning. It proved that plants could be grown under those 2 narrow bands, they never said they grew equal to full light spectrum plants. There are other studies on how green light effects photosynthesis so it’s not just because it’s pretty. It’s also in the big name led light companies, not the crap from China.

Plus do you think your green bulb is narrow enough on the color band to not put out and yellow or blue light that plants could detect?

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0calli
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littlegiant
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cowell
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Just because we see it as green does not mean it doesn’t absorb some green. Black objects absorb all colors yet still reflect visible light.

Should I keep linking? I guess you can google it yourself if you want more.

It’s true that black absorbs all wavelengths of light equally, but if no light were reflected from the surface you couldn’t see it. Can you imagine a room which was painted all black and you walked in and turned on a flashlight and the light just disappeared because the black “color” absorbed it all? That would be really neat! Of course it doesn’t happen. In order to see a black object some light has to be reflected from it. The thing absorbs all the colors equally but it must reflect some light back, albeit less, in order for you to see it. In the case where there is no light, you can’t determine if color exists because there’s no light to reflect.

Pretty sure NASA used red and blue as those are the main peaks of photosynthesis, but that was just the beginning. It proved that plants could be grown under those 2 narrow bands, they never said they grew equal to full light spectrum plants. There are other studies on how green light effects photosynthesis so it’s not just because it’s pretty. It’s also in the big name led light companies, not the crap from China.

NASA DID use red and blue.. they no longer do.. they are working on 3 different frequencies in the red spectrum right now.. I’ll have to look for the article – I read it just like a week ago. They are going red spectrum crazy over there. The link below isn’t what I am talking about, but.. you should look at it anyway.
NASA didn’t prove plants could be grown under 2 narrow bands, they realized that plants don’t utilize green light and only absorbed the red and blue spectrum. The reason they didn’t add any other colors because it would be pointless and a waste of energy to generate light that wouldn’t be beneficial to the plant in any fashon.
http://www.nasa.gov/centers/marshall/multimedia/photogallery/photos/photogallery/led.html_prt.htm
” Glowing red light emitted by light-emitting diodes or LEDs has been used to grow plants on NASA’s Space Shuttle.”..

Here’s one of the grow light makers talking about NASA. see the one they compare to NASA’s – and the one endorsed by NASA (according to them is the original flowerforcer.. which is all red)
http://flowerforcerled.blogspot.com/2008/06/original-flowerforcer-led-grow-light.html

They also have blue spectrum ones “for veg”. still looks like they are making a bunch of different ones.. one half red, half blue, one with a few blue squares.. really art deco. Big name led makers are making crap. They are big name anything since when?

I’m not going to start arguing with you about business practices of companies out to make money. Let’s just say LED’s are garbage – people that make and sell them do it to gullible people who need the NEWEST thing out there. Once all your target market has one.. how do you sell more? Tell them you made it better somehow.. is it? Show me these “studies” you refer to..I’d love to see them.

Plus do you think your green bulb is narrow enough on the color band to not put out and yellow or blue light that plants could detect?

Nope. I didn’t say anything about that either, but since you brought it up. Why don’t you ask me what I think about the light of a full moon? I don’t prescribe to the “no light during flowering” crap you read out here. Why? Cause I get stoned and forget to turn shit off sometimes.. It happens all the time. I have had one hermie EVER, and it was genetic – all it’s clones hermied too. Green light is best to use when working on the plants at night – because the usable light that makes it to the plant from the bulb isn’t going to be strong enough to cause a disturbance to growth any more than a full moon would do.

What other symantics do you want to debate?

When my grow room lights are off veg or flower,what kind of small light could i have on in my grow room safely without fucking the plants cycle up? Maybe…

How to Make the Best Growing Environment

What makes the perfect cannabis growing environment? What does it take to get the healthiest growth and best yields from your indoor cannabis plants?

Consider a grow tent if you want a pre-made perfect growing environment for your marijuana plants!

5 Factors to Creating a Perfect Growing Environment
(from most important to least important)

  1. Light – Bright but not too bright
  2. Temperature – Comfortable for you, comfortable for your plants
  3. Air Circulation – Fresh air plus a gentle breeze
  4. Reflection – Cover your walls with a reflective material
  5. Humidity – Controlling humidity helps plants grow faster and can increase resin production

You need a great environment to produce the best harvest. A poor growing environment lowers both yields and bud quality!

Benefits of a great grow environment

  • Plants grow faster
  • Harvest bigger yields
  • Healthier, greener, and overall hardier plants
  • Higher bud quality (better bud density, shape, and trichome production)
  • Stronger bud smell and potency (THC and smells can get “burned off” if it’s too hot)
  • Plants are more resistant to common problems like over/underwatering, hermies, heat stress, light stress, bugs, mildew and but rot

Keep plants comfortable and they will reward you!

1.) Light

When growing cannabis, you want to give light that is bright but not too bright. The amount of light you provide is one of the major factors that will determine your yields, and with smaller grow lights your yields will be limited no matter what you do.

Light also changes how your plant grows. For example, the color spectrum of light can cause your plants to grow tall and lanky or more bushy and squat. Some grow lights like LED grow lights take advantage of a custom color spectrum to help your plants grow as optimally as possible.

The amount of light you give your cannabis is the main factor that determines your yields

However, it’s also possible to give your cannabis plants too much light, especially with big grow lights, so it’s important to keep grow lights the right distance away.

2.) Temperature

The long and the short of it is: If it’s comfortable for you, it’s probably comfortable for your plants.

Cannabis plants like temperatures in the 65-85°F (19-30°C) range and can start to run into problems when the plants are experiencing temperatures outside that range.

Optimal Temps for Growing Cannabis

3.) Air Circulation & Exhaust

Making sure your plants always have a gentle breeze and plenty of fresh air helps them grow faster. Good air circulation also helps prevent problems with white powdery mildew, bud rot, and common cannabis pests like fungus gnats or spider mites.

Basically, you want a gentle breeze moving over, through, and under your plants if possible. If all the leaves are being gently rustled, it’s perfect. You don’t want to point a fan directly at your plants because that can cause wind burn, but you also don’t want any leaves sitting in stagnant or hot air. A small oscillating fan or two in the grow space can work wonders.

In addition to making sure there’s air moving around in the grow space, it’s also important to vent out heat from your grow lights, especially if it’s getting too hot for your plants during lights-on. While many growers know they’ll need ventilation with powerful HPS lights, it’s important to note that ventilation can be just as crucial for LEDs, LECs and even fluorescent lights like CFLs or T5s if the total wattage gets high enough. For each light type, the higher the wattage, the more heat produced. If you notice the temperature is climbing above 85°F (30°C) on a regular basis, you should consider venting heat out of the grow area to keep the temperature under control. However, if the overall temperature of the entire grow room is too high, you may need to take more drastic actions such as getting an AC. Fans can move air around, but can’t lower the total amount of heat in a room.

4.) Reflection

You will get the most from your indoor grow lights by reflecting light at your plants. Instead of letting the walls of the grow space absorb extra light from your grow light, you can use a reflective material to bounce it back towards your plants. This allows you to squeeze more yields out of the same grow light without having to change anything else about your environment.

Flat white latex paint is a surprisingly cheap and easy wall material that has 85-95% light reflectivity. Yes, it’s true, simply painting your walls can actually increase your yields! There are also many other materials with great reflectivity, and some of the professional options work even better than paint.

5.) Humidity

Unless it’s very high or low, humidity usually won’t cause any major problems with your cannabis grow. However, there are a few tricks with humidity to get faster growth and more resin production on your buds.

Note: The optimal seedling humidity is closer to vegetative plants than clones. Try to avoid letting the humidity get over 60% for seedlings or it can slow their growth.

Perfecting Your Growing Environment

It’s important to realize that there is no one “perfect” growing environment. Just like people, each plant is a little bit different and may respond better to some environments than others. For example, some plants can better handle the heat or cold, and some plants aren’t as picky about good air circulation. But by taking care of the 5 factors of a great cannabis growing environment, you will ensure that your plant will be comfortable no matter what the strain!

And of course, if you run into any problems, diagnose your sick cannabis plant right away!

Learn which 5 factors are essential to creating the perfect cannabis growing environment! Getting this right will help your plants grow faster and yield more!