recommended strain for high grow temps?

[FireTheft]

Are there strains that do better in indoor grow rooms that have high temps?

where I'm hoping to grow there isn't much i can do about the temps until Fall comes and the air gets cooler. I just dont feel like waiting until october to start!

[khronik]

Sure, this is something I have personal experience with.

First of all, you need a strain that develops a really good root system. I would recommend checking out Mandala Seeds (http://www.mandalaseeds.com). All of his strains are exceptionally heat-resistant.

Second, you need to use a lot of dirt if you're growing in soil. And you probably should grow in soil if you don't have very precise control over your grow room. The more your plants' roots are able to spread out, the easier it is for them to regulate the water and nutrients going to the leaves. Also, a moist container of dirt will absorb a lot of heat without changing temperature much. Since having the roots change temperature stresses the plant, it benefits your plants to be growing in the largest possible container of dirt.

One approach that I am using successfully and that other people have had success with, is growing multiple plants in large containers. This keeps the plant from getting root-bound, increases the plant's ability to absorb nutrients and water, and makes the plants more heat-resistant without increasing the amount of dirt you need too much. I use Rubbermaid storage containers with a few holes drilled in the bottom for drainage. You can also use the lids as trays to catch runoff.

Another thing about growing in hot environments is that your plant dries out a lot more easily, so you'll need to water it more. I have one plant that uses almost a gallon of water every other day. By using all this water, the plant is effectively cooling itself, so this is a good thing. However, it does mean you'll need a certain amount of ventilation in your grow room to remove the excess moisture.

Good luck with your grow! :smokin:

[FireTheft]

thanks khronik! those tips are really helpful.

yesterday I gave them a much larger watering than normal and that seemed to really help.
so I think I haven't been giving them enough water despite not seeing any serious signs of water deprivation....

what specific strains have you tried in hot environments? I was considering trying blueberry, CA orange and maybe afghan.....I figured afghan since it started in afghanistan and its hot there!

[khronik]

Sure thing. Just how hot are we talking about here anyway? Also, how big are your plants?

You don't want to give your plants more water than they can use, but in a hot environment your plants will use more water. I guess another thing you would want to keep in mind is to use a more dilute fertilizer solution if and when you fertilize, since your plants' fertilizer requirements are not any higher.

When choosing a strain, the better ones for a hot environment are ones that are regarded as easy to grow. Strains that are easy to grow are usually that way because they develop healthy root systems. Fussier strains are often selected strictly based on bud quality, not root quality.

I've grown Nirvana's Big Bud, Mandala's Hashberry, and Mandala's Satori in a hot attic. So far I haven't had any hermies or other stress problems, despite often having temperatures over 100 degrees F. To be honest, most of my experience growing has been outdoors with bagseed, but the same rules apply there. If the weather was very hot, my plants would always thrive as long as I made sure to water them enough.

[curious101]

Anything from Mandala seeds...their strains are known and bred for high heat resistance...in high times they said temps up to 110F could be tolerated if watered frequently...prices are nice so its worth a shot and they've been getting great reviews

[FireTheft]

Sure thing. Just how hot are we talking about here anyway? Also, how big are your plants?

You don't want to give your plants more water than they can use, but in a hot environment your plants will use more water. I guess another thing you would want to keep in mind is to use a more dilute fertilizer solution if and when you fertilize, since your plants' fertilizer requirements are not any higher.

When choosing a strain, the better ones for a hot environment are ones that are regarded as easy to grow. Strains that are easy to grow are usually that way because they develop healthy root systems. Fussier strains are often selected strictly based on bud quality, not root quality.

I've grown Nirvana's Big Bud, Mandala's Hashberry, and Mandala's Satori in a hot attic. So far I haven't had any hermies or other stress problems, despite often having temperatures over 100 degrees F. To be honest, most of my experience growing has been outdoors with bagseed, but the same rules apply there. If the weather was very hot, my plants would always thrive as long as I made sure to water them enough.

sweet thanks again for the info....I dont think Mandala ships to where I am but at some point I'll probably try afghan or big bud.
in terms of temps average is 85 during the day...its has peaked to 90 a few times, but that is rare. I've only nuted twice so far with a 10% solution....i'm 3 weeks in. I nuted last friday and saturday I noticed just the ever slightest tip yellowing despite having explosive growth. to be safe I did a moderate flush. and thats when i noticed that the large dose of water seemed to help with the heat problem. tomorrow i'm gonna nute again but this time use more water in my solution. I think i'm also going to experiment watering less frequently but with more water and see if my theory is right about more water helping with the heat problem. they still look very healthly and strong and tonight I noticed they are starting to show sex .... lets hope for females!

to answer your question I grow in a small space and dont let them get that big, I just dont have the room...but at the same time a little bud goes a looooong way for me.

[khronik]

Heh, 85 is nothing. My vent fan doesn't even kick on until it hits 90. Just make sure you don't overwater because you think your plants need more water than they do.

Another obvious solution is to have your lights come on during whatever part of the day is coolest, but you probably do that already.

Big Bud is ok, but there are a lot of better strains out there. I got it mainly because the seeds were cheap, it's easy to grow, and it yields a lot. I posted my Big Bud pictures here. (http://boards.cannabis.com/indoor-growing/128568-3-weeks-flowering-nirvana-big-bud.html) The only possible side effect of that grow is that I did have a large male to female ratio, (4:1) but for now I'm chalking that up to bad luck. I'm pretty sure sex is genetic in cannabis plants anyway.

Mandala Seeds ships to the US just fine, although you have to mail him cash. But he's definitely trustworthy. If you don't like that, he lists a bunch of seed banks on his site that also sell his seeds.

[the image reaper]

agreed ... Mandala has an upstanding reputation, both for his product, and his reliability ... :thumbsup:

[scott9116]

I've been having heat issues this summer myself. I'm gonna try the Hashberry from Mandala. I've heard nothing but good about Mandala. My current crop of NL and KC36 is being ravaged by 90-95 temps and damned spidermites. I thought I had good climate control until late July. Saturday, it was 99f at 10AM outside.

[evlme2]

let me chime in, I live in the "sunshine state" and the heat index is well above 100. Thses hashberry are 11days old from the day they broke through the soil.
Mandala absolutely ships to the US, i got mine within 2 weeks of me mailing the cash. Go to mandalseeds.com (http://www.mandalseeds.com), you will not be disappointed:D

[khronik]

Oh yeah, Mandala's seeds are some of the cheapest you'll find anywhere. My hashberries aren't growing nearly as fast as evlme's, but then again, I actually kind of want them to grow slowly so I'm not fertilizing them or giving them too much light. See, my big flowering light is otherwise occupied with my last grow, and I won't be able to use it for at least 4 weeks, when said grow will be done flowering. I only have 68 inches of vertical space to work with, and I can only imagine how big they'll be in 4 weeks...

[FireTheft]

man evlme2 your plants look amazing for 11days....they're huge already! I'm def gonna try mandala now....