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Thread: Ideal temperatures for weed growth?

  1. #11

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    Quote Originally Posted by GEORGE View Post
    That being said, I have grown plenty of Indica here in Florida, can't really tell any difference in them and Satava except Satava grow much taller than most Indica. Outside.
    Thanks George. I Googled it and where I am gets 5C higher temps & more sunshine hours than Florida. Me? Sunniest country on Earth in the sunniest city in that country! It gets ridiculously hot in summer here. I rekon we'll crack "50c in the shade" this year. That means about 60C out in the open sun. Not many people walk around in that. Climate changes is amongst us? Hence my concern about reported temps and real temps in the open.

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  3. #12

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    Quote Originally Posted by doleritejack View Post
    Thank you George. But I just wish that vendors of seed would specify the range of temps at which said seed would flourish. They bang on about THC content, expected yield, make up some marketing blurb about "citrus with hints of blackberry" etc, instead of telling us that its suitable for Alaska in winter or summer in Australia. Not much use tempting us with "a backdrop of vanilla with a tangy pomegranate flavour as you hold the smoke in" if it wont grow to harvest without stringing out foxtails and going hermie cos it's too hot or too cold.
    All the seeds you are talking about are plants that have been bred several generations deep for indoor growing. What you are asking for here is available from specialist breeders. Search for outdoor plants for your lattitude and you will find them.

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  5. #13

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    I found this chart and it all makes sense when I have air temps in the shade cloth at 34C (at 1600 hrs!) and 43% Relative Humidity. Out in the open temps are as high as 43C. As you can read below, I am way out of whack with ideal conditions with these numbers. I either reduce the air temps or wet the plant (all day long?) to get the humidity up. The problem is that I have a grow cupboard in an outside shed and that currently has a Ghost Train Haze vegetating feminized non-auto in it at 12/12 light to flip it. But the plants out in the open are two Black Jack autos that are flowering but not yet ready to harvest. I don't wanna risk affecting the BJ flowering by putting them in with the GTH fems. That maybe the only option as the outside temps are way too high to get even a reasonable VPD. Any thoughts?

    Click image for larger version. 

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  7. #14

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    Quote Originally Posted by doleritejack View Post
    I found this chart and it all makes sense when I have air temps in the shade cloth at 34C (at 1600 hrs!) and 43% Relative Humidity. Out in the open temps are as high as 43C. As you can read below, I am way out of whack with ideal conditions with these numbers. I either reduce the air temps or wet the plant (all day long?) to get the humidity up. The problem is that I have a grow cupboard in an outside shed and that currently has a Ghost Train Haze vegetating feminized non-auto in it at 12/12 light to flip it. But the plants out in the open are two Black Jack autos that are flowering but not yet ready to harvest. I don't wanna risk affecting the BJ flowering by putting them in with the GTH fems. That maybe the only option as the outside temps are way too high to get even a reasonable VPD. Any thoughts?

    Click image for larger version. 

Name:	Scynce_VPD_chart-01.png 
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    You must live close to the Equator? I would think any Satava would thrive where you are at. JMO

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    Nope, far from it. But it gets hot, very hot and very dry. Not at all equatorial. I've lived in Singapore, Thailand, India and Java where it is very humid. Where I am is mostly dry heat. Latitude is 31.9 degrees South. Sand & surf, beaches everywhere. The figures from VPD match my area totally. High temp with low humidity. I'm way out of whack. I can grow stuff but I my harvest is always reduced weight with open airy bud. Hmmmm,,,,,,,maybe, in summers I need to either fit an aircon or fit a constant mist spray in the groom. Most of the year it's much closer to good VPD numbers and I can grow outside. But the winters do enormous damage to anything green as I live on a coastal peninsula. It howls round the house, breaks tree branches, snaps off good strains and threatens my roof!!

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  11. #16

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    Quote Originally Posted by doleritejack View Post
    Nope, far from it. But it gets hot, very hot and very dry. Not at all equatorial. I've lived in Singapore, Thailand, India and Java where it is very humid. Where I am is mostly dry heat. Latitude is 31.9 degrees South. Sand & surf, beaches everywhere. The figures from VPD match my area totally. High temp with low humidity. I'm way out of whack. I can grow stuff but I my harvest is always reduced weight with open airy bud. Hmmmm,,,,,,,maybe, in summers I need to either fit an aircon or fit a constant mist spray in the groom. Most of the year it's much closer to good VPD numbers and I can grow outside. But the winters do enormous damage to anything green as I live on a coastal peninsula. It howls round the house, breaks tree branches, snaps off good strains and threatens my roof!!
    You should be able to buy it fairly cheap where you at. I wouldn't even grow it; I would just find me A farm and buy it from them. JMO

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    It's illegal to grow it, its the most expensive weed in this country, probably in the whole world! And selling or supply would get you a jail sentence. The retail market is underground and run mainly by the bikies. However, having said that medicinal weed is becoming more readily available and accepted. But you need a doctor that will prescribe it. If that market flourishes, then the price of medical weed will drop below the black market price. Who knows what happens then? I have a friend who recently stopped buying black market stuff and went "medicinal". Not quite as cheap but less risk. She's happy. In a few years there won't be an underground market.

    Oddly enough, I really enjoy the technical side of growing the stuff. It's fascinating. I'm retired and it gives me something to study etc.
    Last edited by doleritejack; 20-12-22 at 02:54 AM.

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  15. #18

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    You definitely have your challenges in that climate, but it's been grown there for a long time. Like any crop, it's at the mercy of nature. Sometimes she provides, and sometimes she throws a crap storm at them. As an outdoor grower I am at peace knowing my plants could get turned into compost.

    It sounds like a perfect hobby in your retirement. Finding a way to work with and around your climate sounds like fun. I would figure out a wind block that protects them from the coastal winds first. Next would be getting my soil set up to keep the roots cool, as well as a way to keep it moist. With all of that sun, you have potential to grow some monsters. You just need to find a way to keep them fully hydrated. Sounds like a fun experiment to me.

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  17. #19

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    When I say "illegal", that's true for large number of plants. However, an individual caught with more than two plants or 10 grammes of stuff can be fined or made to attend a one day course about weed consumption. But large grows will end up in court with huge fines and possible prison. It's archaic that we accept tobacco, alchohol and gambling in our society, with the violence and damage of those last two yet come down hard on weed. I've never seen a weed user get violent or addicted to the point of stealing and robbery to get a smoke.

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  19. #20

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    I just saw your response to my first post.

    Growing in pots changes things some, but it sounds like your figuring it out. It's fun thinking about growing in a completely different climate. Come to think of it, north facing slopes are where it's at in your part of the world, and south facing slopes in my parts.

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