Dankwing has a good point, I learn a LOT for my GH grow from this sight, just have to tweak how you apply it to your own situation.
You are doing darn good keeping temps in that range, and they can tolerate a little hotter, like Dan said. I have had to deal with some of those upper temps a lot this summer, having a good deep mulch helps them tolerate it, a bunch, keeping there roots cool. I use straw.
One way a greenhouse moderates it's temperatures, is through thermal mass, having large, closed, water barrels, against the back wall, makes a huge difference. They hold some of the heat from the day, especially if they are painted black, they also store coolness from the night, and radiate that back as well, during the day, just like the worlds oceans do. There are other climate control strategies you can employ, like geothermal heating and cooling, plants transpiration. A great place I found was " 9 ways to cool your greenhouse" at least think that was his youtube, french guy that builds geodesic dome style.
Humidity management can become tricky when you go into flowering, I had serious mold problems my first grow. Always water in the morning, be careful of extra water getting spilled in there, have great air flow and circulation, don't get water on the buds. I also believe that staggering the water schedule helps, if you water every 3-4 days with a heavy mulch, then water a 3rd of the plants one day, another 3rd the next, etc. I keeps your humidity more even, and helps get rid of that spike from watering EVERYTHING at once. I also think the mulch can be your friend, most of it is dry in between waterings if you do it right, it give moisture some place to go at night, beside your buds.
You can check out my thread" sitting on some organic fertilizer, or my plants have my back" might be something useful in there, or maybe give you ideas.
Those are some real cool purple stems by the way! Don't think I've seen that before, what strain is it?
Happy growing!
You are doing darn good keeping temps in that range, and they can tolerate a little hotter, like Dan said. I have had to deal with some of those upper temps a lot this summer, having a good deep mulch helps them tolerate it, a bunch, keeping there roots cool. I use straw.
One way a greenhouse moderates it's temperatures, is through thermal mass, having large, closed, water barrels, against the back wall, makes a huge difference. They hold some of the heat from the day, especially if they are painted black, they also store coolness from the night, and radiate that back as well, during the day, just like the worlds oceans do. There are other climate control strategies you can employ, like geothermal heating and cooling, plants transpiration. A great place I found was " 9 ways to cool your greenhouse" at least think that was his youtube, french guy that builds geodesic dome style.
Humidity management can become tricky when you go into flowering, I had serious mold problems my first grow. Always water in the morning, be careful of extra water getting spilled in there, have great air flow and circulation, don't get water on the buds. I also believe that staggering the water schedule helps, if you water every 3-4 days with a heavy mulch, then water a 3rd of the plants one day, another 3rd the next, etc. I keeps your humidity more even, and helps get rid of that spike from watering EVERYTHING at once. I also think the mulch can be your friend, most of it is dry in between waterings if you do it right, it give moisture some place to go at night, beside your buds.
You can check out my thread" sitting on some organic fertilizer, or my plants have my back" might be something useful in there, or maybe give you ideas.
Those are some real cool purple stems by the way! Don't think I've seen that before, what strain is it?
Happy growing!
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