Two drooping plants 5 weeks veg.

Cold temps slow nutrient flow and water uptake so yes it can cause that. Plants won't drink much leaving medium to stay wet and affecting transpirtation rates so it closes the stomata and you see drooping because the plant isn't transpiring well and the leaves are full of basically trapped water. This can also cause root issues if prolonged so you want to get those temps up.... Especially in the root zone.

Aqua Man said:

Cold temps slow nutrient flow and water uptake so yes it can cause that. Plants won't drink much leaving medium to stay wet and affecting transpirtation rates so it closes the stomata and you see drooping because the plant isn't transpiring well and the leaves are full of basically trapped water. This can also cause root issues if prolonged so you want to get those temps up.... Especially in the root zone.

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I've upped heater and turned lights up shal I lay of water for abit or continue to water stil as normal?

Rh should be lower with lower temp. On my charts 5*C is almost 10%rh difference. Isnt 60 too much at this stage anyway? Follow up to Aqua transpiration.

Going with my chart for HPS (leaf temp 2*C lower than air) 60f optimal RH should be around 40%. But it vary with different light setup and leaf temp. Thats at late veg. Go figure

rogone said:

Rh should be lower with lower temp. On my charts 5*C is almost 10%rh difference. Isnt 60 too much at this stage anyway? Follow up to Aqua transpiration.

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60 to much at this stage.? That's temperature and that's to low at any stage. .

Brettdawg said:

60 to much at this stage.? That's temperature and that's to low at any stage. .

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rogone said:

Going with my chart for HPS (leaf temp 2*C lower than air) 60f optimal RH should be around 40%. But it vary with different light setup and leaf temp. Thats at late veg. Go figure

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I've flipped them last night to 12-12 now. Everything shud fix it self now heaters been turned up t lights off. Been fine for last 2 weeks until had few minus temps last couple of nights. Will see what happens.

Brettdawg said:

60 to much at this stage.? That's temperature and that's to low at any stage. .

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I mean 60 RH you said 58% right? Ofc temp is low

rogone said:

I mean 60 RH you said 58% right? Ofc temp is low

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If temp was higher wouldn't be to bad mate. And the temp will be higher now heater as been turned up. Dont think 58 is tha bad.end of veg and it will be lowered each week in flower

Brettdawg said:

If temp was higher wouldn't be to bad mate. And the temp will be higher now heater as been turned up. Dont think 58 is tha bad.end of veg and it will be lowered each week in flower

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I just wanted to no if a few nights of cold temps at light house could make the plant droop in. Mad how 3 are ok 2 ain't. But guess with seeds each have there own characteristics. These two obvs cant handle the cold.

Brettdawg said:

I just wanted to no if a few nights of cold temps at light house could make the plant droop in. Mad how 3 are ok 2 ain't. But guess with seeds each have there own characteristics. These two obvs cant handle the cold.

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I just said low temp - Rh should be lower. And that add up to low transpiration.

rogone said:

I just said low temp - Rh should be lower. And that add up to low transpiration.

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Yeh I've got a vdp chart here.hopefully should all sort it self out

Aqua Man said:

Cold temps slow nutrient flow and water uptake so yes it can cause that. Plants won't drink much leaving medium to stay wet and affecting transpirtation rates so it closes the stomata and you see drooping because the plant isn't transpiring well and the leaves are full of basically trapped water. This can also cause root issues if prolonged so you want to get those temps up.... Especially in the root zone.

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This is your answer ^
Your plants are overwatered because your area is too cold and they can't use the water so they sit there soaking wet and that's what you get, and root rot too eventually

Beachwalker said:

This is your answer ^
Your plants are overwatered because your area is too cold and they can't use the water so they sit there soaking wet and that's what you get, and root rot too eventually

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Shudnt be tha bad in two days shud it mate. And if this is the case wud u leave the watering then til they get abit dryer.

Brettdawg said:

Shudnt be tha bad in two days shud it mate. And if this is the case wud u leave the watering then til they get abit dryer.

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Turn that Radiator in the background on and you'll find out; how did it get that cold with a radiator in the room to begin with?

Plants in that size pot wouldn't need water for ten days or so under your conditions

I grow in the cold too, try to maintain at least 68f dark and 72 - 75 lights on for better results. If you're interested in more cold weather tips check out 'the Beach House' in grow Diaries. If you're interested in more VPD, Aquaman is the guy to talk to, good luck!

Beachwalker said:

Turn that Radiator in the background on and you'll find out; how did it get that cold with a radiator in the room to begin with?

Plants in that size pot wouldn't get watered for about ten days or so under your current conditions

I grow in the cold too, try to maintain at least 68f dark and 72 - 75 lights on for better results. If you're interested in more cold weather tips check out 'the Beach House' in grow Diaries. If you're interested in more VPD, Aquaman is the guy to talk to, good luck!

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Radiator was to hot on level 3 and plant closest to it showed heat stress.so I turned it down to level two which was fine. All temps was fine and plant perked write back up. 2days later got real cold outside and my mate obvs didnt turn heater up. Was minus -3 outside. I cheked at 3pm temp said 62. So early hours of morning probably dropped to 55 and this is why I'm left with with 2 stressed unhappy droopy plants now.

Beachwalker said:

Turn that Radiator in the background on and you'll find out; how did it get that cold with a radiator in the room to begin with?

Plants in that size pot wouldn't get watered for about ten days or so under your current conditions

I grow in the cold too, try to maintain at least 68f dark and 72 - 75 lights on for better results. If you're interested in more cold weather tips check out 'the Beach House' in grow Diaries. If you're interested in more VPD, Aquaman is the guy to talk to, good luck!

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Radiator was to hot on level 3 and plant closest to it showed heat stress.so I turned it down to level two which was fine. All temps was fine and plant perked write back up. 2days later got real cold outside and my mate obvs didnt turn heater up. Was minus -3 outside. I cheked at 3pm temp said 62. So early hours of morning probably dropped to 55 and this is why I'm left with with 2 stressed unhappy droopy plants now.
Hard to win really heater up high stressed one plant closest to it. Cold stressed two plants.

Brettdawg said:

Radiator was to hot on level 3 and plant closest to it showed heat stress.so I turned it down to level two which was fine. All temps was fine and plant perked write back up. 2days later got real cold outside and my mate obvs didnt turn heater up. Was minus -3 outside. I cheked at 3pm temp said 62. So early hours of morning probably dropped to 55 and this is why I'm left with with 2 stressed unhappy droopy plants now.

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Set the temperature so it's steady; let the plants dry out, and reassess from there

Beachwalker said:

Set the temperature so it's steady; let the plants dry out, and reassess from there

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Av done will check again after mate. Will be lights on when I check after.