Is it time to switch to 12/12?

[keith1975]

I would say cutting the tops off.

If I cut the tops off, can I skip the bending? I know the downside is fewer colas, but bending to me seems like an art I'm going to have to dedicate another grow to.

 

[AngryBird]

You are free to choose what you feel comfortable with.
Both work.

 

[KingJoe83]

My first month of growing was a disaster. I used the wrong soil and I had the lights too close to my plants. I burnt them to a crisp and they couldnt grow. I ended up ditching every single plant after 30 days and starting over. I'm now on my second grow and on day 39. 1 December makes it day 40. The layout of my grow is as follows: (this is the view from the top)

View media item 1628913
Its a 240 cm x 120cm tent. Four plants on each side. Okay, the fourth plant on the right is Coriander, so just ignore that.

I have a mix of autoflowers: auto cheese and auto sour diesel haze.
And i have purple haze which is photoperiod.

My problem is, I did sort of try to plant them in a way that would make them all flower at the same time. But I think my calculations went to hell, along with the plants growth. They have grown in such bizarre ways. For example:
- C and D were planted on the same day, but D is 50% bigger than C.
- E was planted a few days later, but it seems more than 5 days "behind".

My problem now is D. It's 45 cm tall. And it's sativa, which means it can apparently triple in size. If it triples in size, it will be 135cm. Which is too big for my grow tent. But if I go into flowering now, then it might be too soon for the rest.

Here's a side view of the tent:

View media item 1628914
It can comfortably support about 82 cm as max height. The trays I use steal 45cm of my height. Which I could ditch if I need to. But I got them so I could easily let the excess water flow out into a bucket. But it turns out they hardly get full of water. After watering the plants, not too much goes into the tray, and by the time I get back, it seems the lights have somehow evaporated whatever was in the trays anyway. So ditching the trays, or at least remoinv the crates under the trays that hold them up, should give me that extra 45cm. So technically, I have a worst case scenario of 82 + 45 = 127cm. But I dont really want to go that route, as I still want the option of easily draining the trays using gravity.

The other option is to put the lights even higher. That could score me a maximum of 28 cm. But then the lights are very close to the roof of the tent. As in, 10 cm from the roof, give or take. So in this option, I can get a max height of 110cm. If I also remove the trays, I could get a maximum height of 110 + 45 = 155cm.

So my question is: When should I switch to 12/12 ?

My initial feeling is that I should wait til they all average a height of about 30cm. So I can expect a max grow size of about 90cm. So basically another week or so, and then just hope that the Purple Haze's dont go through the roof. But even if I do that, then the other plants havent beein in there that long. Is that okay?

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• KingJoe83
• Sep 14, 2018
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Mars hydro reflector 144 draws 298 watts true from wall or 720 I will explain in a video of my...

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• KingJoe83
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UFO 120 by unit farm again I will be explaining in a video my view and understanding as well as...

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• KingJoe83
• Mar 17, 2018
• helpingastranger

Helping a fella out

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• KingJoe83
• Mar 17, 2018
• helpingastranger

How I measure space and how big a plant can get before I should flip I guess .

 

[InTheShed]

9C2B545E-9ECA-4144-A2BA-21469B777FAD.png

• KingJoe83
• Mar 17, 2018
• helpingastranger

How I measure space and how big a plant can get before I should flip I guess .

That's the pic I spent 15 minutes looking for last night. Thanks Joe!

Also @keith1975, don't get any water on your plant. Nute burn and light burn can result, and once they get buds, bud rot.

 

[KingJoe83]

That's the pic I spent 15 minutes looking for last night. Thanks Joe!

Also @keith1975, don't get any water on your plant. Nute burn and light burn can result, and once they get buds, bud rot.

Just the way I learned about lights abit that and furcifer and pennywise

 

[keith1975]

Just the way I learned about lights abit that and furcifer and pennywise

Ah. Thanks for the tip! Didnt know that!

 

[keith1975]

AngryBird, it's really tricky to get a photo that shows the top bit properly. Going to take a torch in there today to try and get a better photo. But check here:

I assume cutting at A is bad. Then I literally cut off the whole top bit. Cutting at B only means cutting of the two new "branches" forming. Where do I cut it?

Also, check this picture below. You'll notice that within a matter of about 8 hours, this Purple Haze has gotten tiny little hairs coming out. I guess that's good?

The light makes it hard to see. If this doesn't do the trick, I'll head in with a torch and try to get better light for photographing. Let me know? Thanks!

 

[AngryBird]

First question.. Yes the cutting B
Is what we are after.
Little hairs means.............
It is a girl... Congrats

 

[InTheShed]

Girls are better than boys .

I'm confused about your cutting question...are you topping?

 

[AngryBird]

Girls are better than boys .

I'm confused about your cutting question...are you topping?

Yes, we were talking about topping the taller plants earlier, and he showed in pic where to cut.

 

[InTheShed]

Oh I was confused about taking two cuts in B. I was thinking he would cut the apical stem just above a node. But it's past my bedtime here so :zzzzzzz:

 

[AngryBird]

Oh I was confused about taking two cuts in B. I was thinking he would cut the apical stem just above a node. But it's past my bedtime here so :zzzzzzz:

Well, we did party so, you are forgiven lol

 

[keith1975]

Okay, I havent made the cut yet. I'm glad I didn't, cuz now i'm not so sure. Can anyone please confirm where I should cut? Maybe show me other diagrams? Or maybe there is a video of someone doing it? Any help would be greatly appreciated!

 

[AngryBird]

Keith, he was just confused what we ment.
The idea is what we said.
The cut is B. That is topping.

 

[KingJoe83]

Okay, I havent made the cut yet. I'm glad I didn't, cuz now i'm not so sure. Can anyone please confirm where I should cut? Maybe show me other diagrams? Or maybe there is a video of someone doing it? Any help would be greatly appreciated!

Why do you want to cut what about super crop or tie it down ?

 

[keith1975]

I ended up following these instructions:

So I just sort of broke it off. Now I wait...

But... I don't think I got enough off. Should I do this until the plant is a certain height? What should be my goal height? 1/3 of my max height?

 

[AngryBird]

You top off the new growth... Nothing more.
You have to wait and see how she like this topping before doing any more

 

[keith1975]

I'm guessing all my plants are going to have this problem. So is it safe to say I should top all the plants after they got their 5th node? Then technically all of them will be capped at that height?

 

[InTheShed]

Some top earlier than that. Depends on how the plant is growing in the early stages. If you have aggressive grower you can top after the 3rd node. Slow bushy ones you can wait on.

 

[keith1975]

Thanks so much! That helped a lot! I should be good to go for the next 3 - 5 weeks, before I'll come back and start with a bunch of flowering questions.

Also need to go and buy a dehumidifier. And they arent cheap! It's extremely unlikely with my setup that I will be able to keep humidity down to under 60. At least now when it's quite rainy. That might change when summer kicks in! But I guess I need to get one just to be safe.