Heat stress?

**StOnEr4FuN** · 08-02-2006, 09:43 PM

This is my first time growing. I have my three plants in my attic (which is like 95 degrees during the day). The attic has two windows and I have a fan in one of the windows for ventilation and air circulation. I have two lights for the three plants. One light is a flourescent and the other is a 150watt blue light bulb in a metal lamp shade(don't know name or anything) I water the plants and use a spray bottle to mist the leaves like every other day. i have the light cycle at like 18hours day/6hours dark and I have it set up so the 6 hours dark are during the peak daytime when its the hottest. I noticed some of the leaves are dying off and some are browning. Could that be from heat stress and if so, any suggestions on how to fix problem without moving the plants?

**P.R dude** · 08-02-2006, 10:01 PM

theres no need to spray your leaves.

**silvernomad** · 08-03-2006, 06:22 AM

It is to hot up there at 95.........You need to have the temp between 70 and 80 up there if you want those plants to be happy.

**silvernomad** · 08-03-2006, 08:03 AM

If you can get it at 85 at the most, you should be ok also. But you got to bring down the heat

**Tanya** · 08-20-2006, 05:17 PM

The heat is in most cases a problem.. unless you have a high CO2 Level.... iv had plants do well at those tempratures with the aid of a CO2 Generator. you will also need to bring up the humidty as dry high tempratures increases the risk of Spider Mites... which we all know is a pain in the butt..

xTANYAx

**Widow Maker** · 08-20-2006, 09:41 PM

Originally Posted by P.R dude

theres no need to spray your leaves.

But it isnt a bad thing. It helps keep dust and bugs off your plant. Just dont do it when the lights are on.

I would probably get rid of this blue bulb and just use flourescents. Unless you can afford to get a hps or mh light.

Its pretty hard to grow inthe attic. Thats where all the heat in the house is. I tried it once and failed.

Good luck!

**waytogrow** · 02-07-2009, 06:35 PM

I have Six hybrid sativa plants growing in my closet and i never close the closet door due to my Hps 1000 watt generates quite a bit of heat but i closed the door one night and three of them shrivled enough to notice quite well is there a way they will still live or is it hopeless???

**jordisgarden** · 02-13-2009, 04:50 PM

co2 wont bring down the temp, but it will open up the plants pores so that it can take in nutes....you seriously need to address that heat issue

way to grow, if you still have even two living leafs on those plants then it can be brought back to life.

**LVsFINEST** · 03-04-2009, 11:19 PM

My temps shot up to 88F today for some reason so I've been researching heat stress. I found this:

http://weedfarmer.com/growing_guide/temperature.php

It actually implies hotter is better, assuming the genetics of a plant is not a factor. It states that plants can not only survive at 95F, but also do quite well too. Not sure if there's any truth to it or not tho.

**Gooogle** · 07-01-2009, 02:42 AM

my plants are in the veg stage at "high" temps (82-97) and there doing great!! i had a vet. grower look at them and he laughed because he was shocked at how well they are doing . unless there wilting badly or not growing i think your ok . my plants do have a small amount of leaf curl at the edges other than that there just fine. thats just my experience at least.