mastergsc2015
Member
Week 4 in my green house southern California. Very good in my opinion but I love constructive criticism. So lay it down lemme learn. 
air conditioning greenhouse
- Thread starter mastergsc2015
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mastergsc2015
Member
Okay cool how much do you think?
Im fairly new to flower as I have not had a chance to fully complete a cannabis plant complete. But this time is much different and I need a lil guidance for the finish.
Im fairly new to flower as I have not had a chance to fully complete a cannabis plant complete. But this time is much different and I need a lil guidance for the finish.
eddy600
Well-Known Member
They look fine the heat wave has turned a few of the leaves yellow,my greenhouse is going threw the same thing now.The warm nights make up for the hot days i have seen good growth lately myself.I use 1 heaping tablespoon in 5 gallons of water of maxsea veg formula once a week and the same of the bud formula every time i water for five plants.
petert
Well-Known Member
Yeah. I was wondering the same thing UB... Your plants are in their final stage of life, they look good.. Like Buck said, maybe a little more N through veg, but I wouldn't mess with extra N now, maybe some liquid bone meal..up the calcium a little.
I'm growing in a greenhouse as well and saw your title about AC??
I just opened everything up and turn the fans on and my greenhouse stays within 3 degrees of the outside temp.
mastergsc2015
Member
The only problem is its 105 degrees Fahrenheit today and most of this week should be extremely hot. The ac does help but doesn't keep it at 75 or nothing. But I feel 85 its better than 105
thegreensurfer
Well-Known Member
Yea we are going through a nasty heatwave here in SoCal. I personally load up on the potassium silicate, it really helps with heat stress and drought.
eddy600
Well-Known Member
In so cal a swamp cooler is the way to go it's cheaper to run and helps to keep the humidity up and it also moves 5 times as much air no need to run your exhaust fan when the cooler is running.think of it as moving heat from inside to outside at five times the speed. I live at the base of the San Gabriel mts the humidity averages about 11% during the growing season if your humidity is higher that that your results might not be the same.the man at my local greenhouse store(a place to grow} helped with my setup,his advice and experience in the local area seems to be working for me.
The303Yeti
Well-Known Member
It doesn't get quite that hot in Colorado or rarely but potassium silicate is the way to go. I would try a Ice box setup if you going for evaporative cooling.
greasemonkeymann
Well-Known Member
beautiful plants man, i'm wondering why the greenhouse?
Uncovered would be better, and help with temps, also windflow is great for them.
I'm in norcal, and we have gotten 100+ weather a LOT, and I haven't had any issues at all with that, you just need to keep them watered, and I also suggest either a lot of compost/mulch on the soil tops or cardboard that has been soaked with water, the others have recommended silica, this is a GREAT idea, and should be used anyways, but if not, def now.
High temps, in my experience have never seriously harmed a grow of mine, unless you couple that with no water...
Probably have done maybe 15 harvests outside, and every year the temps have been over 100, when I lived in the Aptos mountains the temps were REGULARLY over a hundred, and the highest we got was 116, and even still the plants didn't suffer, the most I ever saw was the very slight drying out of the edges of the leaves, and the "taco'ed" a lil when the sun was the brightest/warmest. But the plants kept on going, and the harvest was monstrous and extremely potent.
One caveat though, it's allllllllll strain dependent, for the record the strains that I did regularly were the J1, jack herer, bluedream, sour diesel (ecsd), I did a couple runsof the romulan, and sensi star as well.
The303Yeti
Well-Known Member
They actually seem happier in the greenhouse. Lots of air circulation. Colorado law says they have to be enclosed anyways. 2 ten inch fans at 1200 cfm helps. Never gets very hot.
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