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Can too much heat from the sun stress a plant out?

Discussion in 'General Outdoor Growing' started by Danbridge, Sep 20, 2012.

  1. Sep 20, 2012 #1

    Danbridge

    Danbridge

    Danbridge

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    I live in the Los Angeles area of Southern California. This last August was a blazer. For the entire month, the lowest temp we got out here was 88 degrees. We had about 10 days of triple digit temps in a row. I watered my plants just about every single day. They survived, but the heat seemed to stress out my buds. Instead of them being dank, they are fluffy. I tested a few buds from each plant and they smell and taste good and get you high, but the texture is not all that great and I know it will affect my yeild.
    Some people have told me that marijuana thrives in Southern Cali heat. We live in semi-arid desert out here. So my question is, can too much heat from the sun affect an outdoor grow during flower season? Thanks for your replies.
     
  2. Sep 20, 2012 #2

    4u2sm0ke

    4u2sm0ke

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    88 aint bad niether is 100 really...the added heat increase resin production from what Ive read...if the fan leafs start drooping bad..I would consider misting around them to raise humity and give them a drink


    take care and be safe
     
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  3. Sep 20, 2012 #3

    Dr.Drow

    Dr.Drow

    Dr.Drow

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    Good question. supposedly anything above 90 and your plants are not growing as much, more like a stasis period. next time keep track of how many days over 90 you had and around harvest time let it go that many more days and it should bring u back up to par yield wise.
     
  4. Sep 21, 2012 #4

    Danbridge

    Danbridge

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    Ok thank you.
     
  5. Sep 21, 2012 #5

    gourmet

    gourmet

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    Hope not. MY ac went down and my tent got to 115 degrees before I caught it.
     
  6. Sep 21, 2012 #6

    Dr.Drow

    Dr.Drow

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    90 degree mark is just what i go by experience. if your keeping the roots cool enough im sure 90 isnt a problem. im indoors only and tend to stray away from sativa dom strains. different strains will tolerate more heat than others, sativas take especially well to the heat and some wont do well without it.
     
  7. Sep 21, 2012 #7

    HemperFi

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    Rosenthal says that photosynthisis begins to slow at about 85 degrees and at 105 stops. The plants are okay, just not growing optimally. When the temps drop again the plants start growing again. I haven't tested this yet, but it is in his book they use as a text book for Oaksterdam university.
     
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  8. Sep 21, 2012 #8

    Dr.Drow

    Dr.Drow

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    nice reference, i knew i read somthing about it somewhere. whenever ive had problems its been around 95ish, so now my rule of thumb is 90 degrees or less.
     

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