Can you grow in a Harbor Freight Greenhouse?
- Thread starter Mr.Lew
- Start date
Mr.Lew
Well-Known Member
No i appreciate the worry I have been super stressed the last 2 weeks because taking the roof panels is not an option in my town. This is my first outdoor grow in a confined space. Most of my experience is indoor and 20 years ago at that! So this is a learning process for me. I ve already learned that next year, have fewer plants and more LST.
Correct me if i am wrong but after i see flower knubs on the top i can expect, about 10% more growth between that and when it finishes? If so i think on 4 of the 5 I will be ok.
husita
Well-Known Member
Depends on genetics, I´d say 10-50%
. How long are they flowering? Growth stops after about 3 weeks. You can always do some supercroping and bending. This year I started light deprivation 1 week earlier then year before and lt was right on time, they almost touch the film, I had to bend some of them, had 3 genetics-you never know exactly. First year, I started with 15 plants on the same place, now I have 5 and it could be still to much, meybe 2 will be be O.K. I´m thinking of lifing my greenhouse next year for at least half a metr and maybe loosing the floor as well.Look at this, after 2 weeks of flowering: Mid-european 2022 grow | Rollitup , started when they did not even touch the net!
And you can compare tomorow my new pics, 4 week of flower.
Mr.Lew
Well-Known Member
MAYBE!
So no matter how hard i tried, i could not keep the plants under 6ft. So i had to raise the whole thing up by 17 inches. Note** If i had done 2 plants and more LST, it could of been done without raising the greenhouse.
View attachment 20220810_070231.jpgView attachment 20220813_100929.jpg
View attachment 20220813_100929.jpg
So no matter how hard i tried, i could not keep the plants under 6ft. So i had to raise the whole thing up by 17 inches. Note** If i had done 2 plants and more LST, it could of been done without raising the greenhouse.
View attachment 20220810_070231.jpgView attachment 20220813_100929.jpg
View attachment 20220813_100929.jpg
Wow, you just casually raised your green house to solve your issue. Mr Lew you truly made me chuckle in a good way with this power move. And the execution of casually throwing it on here after like yea here’s a picture of my hard work no big deal.
love it. Keepme updated !
love it. Keepme updated !
slow drawl
Well-Known Member
Been a while since I've been on here, your thread caught my eye.
My first thought when I saw your pic was "that's gonna be crowded".
Great idea on the stem wall raise, and nice features that you've added.
Plants look super lush and healthy.
Might think about some thinning, be very cautious of you humidity levels.
What are your humidity levels at night? How cool does it get there come Sept, Oct.?
I used to have an 10x14x8 GH that I grew quite a few crops in when I lived in Or.
4 plants in there would completely fill it to the top, and that's with topping, cropping and pruning.
The absolute hardest things to control were heat and humidity and keeping the plants smaller.
A 40% shade cloth was imperative for me to keep the heat down in addition to a swamp cooler.
Had to buy a dehuey and add a heater come sept and oct to keep the humidity down.
My first thought when I saw your pic was "that's gonna be crowded".
Great idea on the stem wall raise, and nice features that you've added.
Plants look super lush and healthy.
Might think about some thinning, be very cautious of you humidity levels.
What are your humidity levels at night? How cool does it get there come Sept, Oct.?
I used to have an 10x14x8 GH that I grew quite a few crops in when I lived in Or.
4 plants in there would completely fill it to the top, and that's with topping, cropping and pruning.
The absolute hardest things to control were heat and humidity and keeping the plants smaller.
A 40% shade cloth was imperative for me to keep the heat down in addition to a swamp cooler.
Had to buy a dehuey and add a heater come sept and oct to keep the humidity down.
Mr.Lew
Well-Known Member
Yep that is tonight' s project; staking and one final pruning.
Yes its way too many plants. Next i will do 3 plants with LST.
My fan and carbon filter does 3 air exchanges a minute. So during the day my RH is under 35% and it is 4 degrees above ambient; at night its a little tricky because i dont check until 6 am but then its about 60% and about 60 degrees. I do exchange the air every minute at night with my carbon filter so i think i am ok. But again 20 years since my last gro so i hope its going to be ok.
Southernontariogrower
Well-Known Member
was hoping to see an updated pic. Hope it turns out well.
Mr.Lew
Well-Known Member
Here is an update:
The plant (runtz) in the rear is showing some trichomes.
The view from the door, above, and inside
Slurty5 flower
Southernontariogrower
Well-Known Member
Grew Georgia runtz a few runs ago, reveg didn't work out and lost strain. Was awesome smoke, smelled like candy tasted like gas!
DrOgkush
Well-Known Member
You must be in souther California. I have the same forecast
Very well put. That must of been a bitch to raise. I think it looks really good! For a HF. How’s it hold up against the winds?
Mr.Lew
Well-Known Member
So far so good, but the real winds will start in about 2 months when the storms start rolling in. Then we will see… if it becomes a real issue I will just buy some silicone and seal them in place.
However, panels are cheap and are delivered in less than 3 days. I had to order a new vent panel for this winter, after I cut one up and covered it in bug screen for better airflow. Stay cool, it is supposed 110+ all Labor Day weekend and into Tuesday. .
Mr.Lew
Well-Known Member
So today i finally had enough of this heat. The next 5 days its going to be around 108 to 112F so i built a solar powered DIY pad system with 17 gallon reservoir.
parts I used
12 ft of 1/2 pvc pipe for the frame
9v aquarium pump (200l an hour)
USB connector with alligator clamps
Dura cool 30x 36 pad
10ft of silicone tube 5/16 ID with 1/8 inch holes drilled into last 17 inches
Various wire ties
17 gallon tub
So after about 20 mins it was 1 degree less than ambient. I will post in an hour to see if it is working. Outside air temp was 92.
parts I used
12 ft of 1/2 pvc pipe for the frame
9v aquarium pump (200l an hour)
USB connector with alligator clamps
Dura cool 30x 36 pad
10ft of silicone tube 5/16 ID with 1/8 inch holes drilled into last 17 inches
Various wire ties
17 gallon tub
So after about 20 mins it was 1 degree less than ambient. I will post in an hour to see if it is working. Outside air temp was 92.
Last edited:
