Which Strains Are Best For Possible High Heat Situations???

Hello, this is going to be my 2nd indoor grow op, i currently also have A outdoor mini grow as we speak.. however i plan to start another indoor grow in the attic of where i am living.. the slight problem is it can get hot up there at times during the summer.. during the winter, i can handle that problem easy with hid lights an space heaters..

Now i already have some great strains at my house, which i will name off to you, and i would like some input on what would be the best strain to grow when high heat is a possibility... but you also have to remember, wen u grow outside, it gets in the 100's an plants live, my outdoor plants have seen 102 so far with no problems at all.. anyway to my strains.. smell is also a concern to an extent

(the ones with a * are the ones i am most interested in growing) and these are all from seed
Nirvana Northern Lights * (seed or clone)
Sativa Seeds BlackJack **
Nirvana Chrystal*
DNA Lemon Skunk
DNA Sour Cream
X-Line Iced Grapefruit * (Seed or clone when ready)
DNA Sharksbreath
R, Privada Cole Train
Nirvana Jock Horror* (Not a seed, currently outdoor, could pull a clone when ready


Anyway those are the strains i have at the moment, some of good, some arent the best.. however when i can afford to, i will get a few autoflower seeds, since ALL of my autoflowers didnt make it much further then germination if even that far.. anyone down for a trade? lol

anyway... let me know which strains you think are best for possible high heat situation that i own, and also, if there are other strains out there i do not own, please inform me.. is it true indica react better to heat then sativa? if so can sativas still handle it? or hybrids? im more of a sativa high kinda person.

High heat is going to = slow growth or dead plants. I don't know what strains will stand up to the heat better, if any, but you should really consider ways to reduce the heat before you even try growing. You may just end up wasting your money on seeds and soil and having to throw it out and start over when they die.

Sorry I couldn't be of more help but I know from experience that trying to grow in high heat is not a good idea.

You would want to be pumpin mad silicates and shit if you're temps are that high...they will survive, just won't be "optimal."

Wiggidy said:

(the ones with a * are the ones i am most interested in growing) and these are all from seed
Nirvana Northern Lights * (seed or clone)

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I have 2 Nirvana Northern Lights growing in a 92-96f environment and they are looking healthy. 100+ may be pushing it too far though.

High Heat is Bad MKAY.

Does the attic have a window??If so buy a cheap a/c 5000btu should do and they r like 400w i believe and u will be fine...If not ur def gonna need co2 and lots of fans and hope it dont get over a 100...GL

I mean a Sativa would be better suited for the heat b/c they are most used to tropical conditions and lots of sun, but really no strains like extreme heat all the time. In spurts you can maybe get away with it but a constant temp that high, your asking for trouble IMO. You need proper cooling and ventilation first. It is vital to having good stong healthy plants. Unless your looking for average weed. IMO if you your going to take the time to grow it for that long you mine as well spend the cheese to give your plants a chance to produce DANK!

high heat is not bad to a lot of different strains, every strain that i have had has flourished but i have a lot of air flow and at night it gets around 75-80. my temps most the time don't get below 90 during the day. depends on the temp outside=midwest.
Swiss cheese is posed to be able to take the heat.

growing right now
Dynamite
Swiss cheese
Aurora
ak47/kali mist

all thriving right now. good luck to you

From Ed Rosenthal's Marijuana Grow Tips article

"Both excessively high and low temperatures can slow marijuana's rate of metabolism and growth. The plants function best in moderate temperatures - between 60 and 85 degrees. As more light is made available, the ideal temperature for normal plant growth increases."

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Yeah Ed Rosenthal has no idea what he's talking about. I will believe you over him. Anywho...you keep growing at high temps. I'm not saying it cant be done. If your using CO2 I could see higher temps being a little more tolerable but I still wouldn't want anything over 90 degree ever. To each his own.

I've heard over and over that having an abundance of CO2 makes higher growing temps acceptable. Why is this, biochemically?

The higher the temps in nature the less c02 is available naturally in the air. Like when you travel to a point very high above sea level, it is hard for us to breathe. So therefore, in higher temp enclosed growing systems we use CO2 to bring environments as close to "home" as possible. In nature cannabis plants are in the wide open, with plenty of air and c02. We are only able to recreate this in an indoor environment.

Bustedparaphernilia,

Here are some sources I've read that helped me understand the relationship of plants + CO2+ high temps. If your using CO2 you need to dial in your CO2 PPM's and temperature as well as making sure to provide it with the extra water and nutrients needed b/c of the advanced rate of photosynthesis. Otherwise your just throwing away your money with minimal gains.

http://www.plantsneedco2.org/default.aspx?menuitemid=342&AspxAutoDetectCookieSupport=1

And

http://www.sjsu.edu/faculty/watkins/CO2plants.htm

Thanks for the sources. Should be useful for when/if I ever add a CO2 tank.

Dont let these people convince you that you cant have high temps in your grow area. Just keep a fan blowing in between your plants and youir light and you will be good. Take this from someone that has taken cultivation classes. but any how most afgan, northern lights and skunk crosses will handle high temps no problem. I mean as long as your temps are not to extreme like 38C+ you will not have any problems take this from experience and things I have observed. Infact it is better to have a higher temp then a lower temp. Ive had my growrooms at 70F and in betten 85-92F and my plants will thrive in the higher temps more then the 70F temps. Do let people bring you down because of high temps. Thats all I have to say!! infact my growroom in the last couple grows has been 34C and I get really nice yields under a 600watt hps on average of 14oz per 7 plants and on the higher side 1 pound+. plants are like humans if they are raised in a hopt enviroment they will adjust themselves to that an enviroment. plain and simple keep your head up and dont let high temps work you up

take care

I've been growing in a variable temperature setting (it depends on the heat waves we've been having and when/if my dad decides to actually turn the AC on). It has been anywhere from 70-100+F, usually 80-90, and my plants are growing wonderfully.

So no worries!

Ketamin from world of seeds landrace collection

Yeah my temps when it's hot close to 90 n tent don't seem to affect them much as long as like he said make sure u got a good fan or 2 plus exhaust long as that hot air isn't STUCK n tent and it has exchange it should b ok and placing your light at right place above them to where you aren't stressing them with heat off bulb....BUT I'm pretty new to this but so far seems to do fine I think of your temp Is erratic becomes problem if it varies alot

My sour diesel auto is thriving right now.....and her average daily temp, which lasts well 10 to 12 hours if not an hour or two more is between 92-96F

For what it's worth, I'm a homebrewer, and I like to make my yeast starters in my grow tent to give it a little extra boost of CO2. During colder months I'll even let my ales ferment out the batch in the tent -- lotsa CO2. But you don't want to do that when it's too hot (butt-nasty beer). But yeah, CO2 is good when it's hot and silica -- but the best treatment for high heat is cool air (duh!).

Reverend Jim said:

For what it's worth, I'm a homebrewer, and I like to make my yeast starters in my grow tent to give it a little extra boost of CO2. During colder months I'll even let my ales ferment out the batch in the tent -- lotsa CO2. But you don't want to do that when it's too hot (butt-nasty beer). But yeah, CO2 is good when it's hot and silica -- but the best treatment for high heat is cool air (duh!).

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You revived this thread why?