High humidity in early flowering stage

N

NeoLais

420 Member
Hi guys ! I am currently 1 week into flower
It’s been raining in my area for couple days now and it will rain for another next couple more days. The outside humidity is 85% and above. Inside my grow tent’s humidity has been around 80%, at some point, it goes up to 85% . With the help of the portable AC and 1 dehumidifier, i’m able to keep humidity around 80% .
I understand that this is not a good range when flower. But can’t really help it. It will stop raining soon. But for now, is it gonna be any problem or will it affect the bud development in the next coming weeks ?
I am so desperate and as first time grower. I dont have much experience over this matter
Help me out guys and thank you !

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Can you add a heater too. 66f is too cold and will affect the plants, a heater could help lower humidity and raise temps. Is the dehumidifier inside the tent? It’ll help the most inside.

Those temps and rh are definitely stressing the plant, so do what you can to fix the temp and rh. Like 72f and 60% would be night and day for those babies.

Don’t wait until they are damaged.
 
Waywardwayne said:
Can you add a heater too. 66f is too cold and will affect the plants, a heater could help lower humidity and raise temps. Is the dehumidifier inside the tent? It’ll help the most inside.

Those temps and rh are definitely stressing the plant, so do what you can to fix the temp and rh. Like 72f and 60% would be night and day for those babies.

Don’t wait until they are damaged.
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Thanks man ! If a heater could help lowering the rh. I probably will put one in . So stressful these days . I’m paranoid that i will lose the whole crop
 
Relative part of RH is its relative to temp. As temp raises RH lowers. Early flower is less at risk. Get enough air moving so the leaves gently sway and the humidity tolerance goes up. 80 deg with 80RH and a good breeze is as far as you can push it without a vary high risk of mold. Mid 70s temp, mid 60sRH and good air flow is safe.
 
One thing we must understand that the "marijuana plant" is how old ? it survived many yrs and climates ?, take for example the "rudellas" (auto) plants have adapted to their "climates" found in Russia. One can go down the rabbit hole with the "marijuana Plant"
 
This conditions are good for pm and budrot, when it’s further in flower. I’d recommend lowering rh below 70%. The temperature isn’t a big deal, it’s fine.

There are vpd charts for cannabis growing available with ranges you could try to aim for. As it is your plants have too low vpd and are at risk of pm.

It’s better than before but still isn’t good and risk pm and budrot. When it was too cold it had those risk as well as not being able to feed itself properly. Now there’s just the risk of mold.

But also critical is getting vpd into range where the plant can breath, it can’t very well with those conditions. But they were worse before.
 
Waywardwayne said:
This conditions are good for pm and budrot, when it’s further in flower. I’d recommend lowering rh below 70%. The temperature isn’t a big deal, it’s fine.

There are vpd charts for cannabis growing available with ranges you could try to aim for. As it is your plants have too low vpd and are at risk of pm.

It’s better than before but still isn’t good and risk pm and budrot. When it was too cold it had those risk as well as not being able to feed itself properly. Now there’s just the risk of mold.

But also critical is getting vpd into range where the plant can breath, it can’t very well with those conditions. But they were worse before.
Waywardwayne said:
This conditions are good for pm and budrot, when it’s further in flower. I’d recommend lowering rh below 70%. The temperature isn’t a big deal, it’s fine.

There are vpd charts for cannabis growing available with ranges you could try to aim for. As it is your plants have too low vpd and are at risk of pm.

It’s better than before but still isn’t good and risk pm and budrot. When it was too cold it had those risk as well as not being able to feed itself properly. Now there’s just the risk of mold.

But also critical is getting vpd into range where the plant can breath, it can’t very well with those conditions. But they were worse before.
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thanks man ! Hopefully it will stop raining soon. Outside humidity is over 85% . So it’s the best i could do at the moment with all the equipments i have. Well i guess i started to grow at the wrong season of the year. Thanks for your support, friend !
 
No worries I wish it wasn’t that way, but everyone has to deal with the ambient conditions of their grow. The ones who dial it in best have the best plants. The ones that neglect it the most will end up chasing down problems. It sucks to have to do.

Perhaps you can seal the grow room as much as possible and exhaust outside. Allowing fresh air when needed but otherwise maintaining a lower humidity in the room.

As long as you keep the temperature where it’s at you have overcome one problem already. Next and it goes hand in hand, is the relative humidity. You are aiming for a number, within the range indicated by a vpd chart for cannabis. (Not leaf vpd, we aren’t there yet)

Just do what you can for humidity and your plants will show you they appreciate it.
 
Waywardwayne said:
No worries I wish it wasn’t that way, but everyone has to deal with the ambient conditions of their grow. The ones who dial it in best have the best plants. The ones that neglect it the most will end up chasing down problems. It sucks to have to do.

Perhaps you can seal the grow room as much as possible and exhaust outside. Allowing fresh air when needed but otherwise maintaining a lower humidity in the room.

As long as you keep the temperature where it’s at you have overcome one problem already. Next and it goes hand in hand, is the relative humidity. You are aiming for a number, within the range indicated by a vpd chart for cannabis. (Not leaf vpd, we aren’t there yet)

Just do what you can for humidity and your plants will show you they appreciate it.
Click to expand...
Thanks man! Appreciate it. Stay safe
 
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