By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Humidiy levels
m0useanswered grow question 2 years ago
Check out this handy VPD chat, it gives you ideal RH and temp ranges for maximum plant growth.
It is a very useful tool and works quite well
https://www.dimluxlighting.com/wp-content/uploads/2019/02/Leaf-Vapor-Pressure-Deficit-VPD-1.jpg
Granted if you don't want to get that technical about it. these the are the rates I follow.
Seedling/sprout 1-3 weeks 75-80% RH
young-old plant in veg 60-65% RH
start of flower 50-55%
mid-end flower 40-45%
If your having issues keeping humidity up try an ultrasonic diffuser or if its keeping it down a small dehumidifier inside the tent, or outside it, removing ambient airs humidity before it goes inside the tent.
Best of luck and Happy Growing!
Y0inkanswered grow question 2 years ago
I always start whit 90/95 germinating phase and i reduce 5% each week,in the meanwhile i observe the situation and see if i need to decrease it faster or not.
But,we are talking about cannabis,she can grow almost in every situation š.
Good luck šš½š
like
Complain
Ezzjaybruhanswered grow question 2 years ago
Considering that vpd is important. But generally speaking, yes you are ok at 60 or preflower. Iād try to be more 50-60 tho at that point
like
Complain
GMSgrowsanswered grow question 2 years ago
If you growing in water, humidity levels lower is acceptable
like
Complain
GMSgrowsanswered grow question 2 years ago
50 to 55 and as they approach mid flower down into the 40s and I try to keep around 35 to 40 for finishing
like
Complain
Similar Grow Questions
Solved
Cthoff
What is growing out of my pot?Hey guys, not sure what this little guy is but it started growing out of my pot. I just noticed it today. Anyone have an idea?
I grow my plants indoor but I take them outside for 3-4 hours for actual sunlight.
Not sure if this is a formation of a new plant or part of my plant?
Plant. Other
4 years ago
2
2
Solved
AGrowerNotAShower
Growth Speed of AutoflowerIf I start three auto seeds of the same strain, is it expected that all three will be ready for harvest at the same time? My plants look fairly healthy, but it seems as if they are growing at different speeds. This was noted before the transfer to their final pot. Thanks.
Week 4
Plant. Other
4 years ago
3
2
Solved
thelastopera
What temp is too hot for seedlings?Im growing White Widow fem seeds from crop king outdoor, some in soil and some in coco to try it out. What temperature for seedlings is too hot? currently theres a heat wave going on and its about 35c or 95f outside. Looking for some insight appreciate any comments!Plant. Other
Setup. Seedling
Setup. Outdoor
4 years ago
3
Solved
marihoochi
Nitrogen Toxicity 15th Day FlowerWhen you have nitrogen toxicity at 15th day of flower does the plant have enough time to repair? or will i get fluffy buds? flushed with 7-12 gallons of 6.0 PH water per plant at 19 degrees. Next day with lights out I sprayed pro silicate. Should I do anything else?Week 10
Plant. Other
4 years ago
2
3
Solved
W00zY
Height problems, she's reaching to close to the light again (in flower)Hi guys,
I start to have height issues. The light is the max on height (ziptied to the poles) and the buds are already that close again to the light. What can i do with these 2 tops that i don't end up with lightbleach?
4 years ago
4
2
Solved
Chill07
Growing Outdoors??????From newbie what grows better and yield outdoors a auto or non auto. Temps generally around mid to upper 80s lows mid to upper 60s. Sunlight low stealth grow hidden maybe 3 to 4 hours direct then what trees allow. Have Feminized seeds and auto. ThanksWeek 4
Plant. Other
4 years ago
2
2
Solved
Hisknibbs935
Is it too soon for the lights ?Hello all :) Started my first one now germinated 3 outta 3 autos ,I have had my first one sprout and i have
read I should put lights on as soon as possible is it too soon ? Temps holding steady 24.5 to 25.4 humidity 55% slightly low
Plant. Other
4 years ago
1
Solved
chapadux420
Slow Short growth?Fee like this lady is growing slowly, do you think it has a problem? thereĀ“s lots of leaf growth but sheĀ“s small, my friend is growing the same strain, and his plant is alot bigger, has fewer leaves but they are a lot more spaced, worried mine might be growing small and slowly.
4 years ago
6
5
Solved
Torie85
Nortern lights autoAny advice is much wanted, I've got a northern light auto and she is 8 weeks today, my worry is have the buds got enough time to grow, is there anything I can do to help her, is it to little to late, looking at the photos any advice on her health, how is she looking, first grow
Plant. Other
4 years ago
1
2
Solved
grasSHOPPER420
Helmet head help!!!!So I had a seed that sprouted days ago that still had helmet head. I read online to gently squeeze with a pair of tweezers& remove it . I tried and soon found out that it just wasn't done it business. It was a few inches tall though. Will it bounce back or die. Anything I can do?
Plant. Other
Setup. Seedling
4 years ago
1
2
Solved
dukejonesmusic
Can I drop my 2gl fab pot in another 3 gl fab pot without transplantIām at 4 weeks on my auto ak47 grow, in a 2 gl fabric pot. Iām starting to see some roots piercing through my pot. Can I drop my 2 gl bag inside a 3 gl bag without transplanting the plant? Is an auto and Iām already at week 4. Lst
Plant. Other
4 years ago
2
3
Solved
HappySkunk
Flowering stage tipsMy plant just started to flower. I feel excited and nervous, because I didnāt think I would be able to keep a plant alive for this long.
Do you guys have any general tips or advice for the flowering stage of an auto for a newbie? š¤Week 5
Plant. Other
4 years ago
4
5
Solved
JiminyCricket
Transplant FuckeryI have four plants I transplanted from 1gal to 3gal fabric pots. When flipping them I had a bunch of dirt fall out the side of the pot down onto the buds. I now have dry dirt stuck everywhere on the buds. What should I do? Will it hurt to leave on? Should I spray with PHed water?Week 4
Plant. Other
4 years ago
3
3