Hi everyone, I'm growing in a greenhouse and my girls are getting pretty tall. They're about 6 inches from hitting the roof and at this rate, with at least 8 more weeks to go, they're sure to hit it. They began to pre-flower about 2 weeks ago and have not developed much since. Is it a bad idea to top them at this stage? Keeping in mind I would have to top what looks like the sites that will be top colas.
Will the plant develop new cola sites or am I reducing bud potential?
Either way, something has to be done before they hit the roof, and I cant move them outside, too visible. Any Ideas? Do you think even if I top them they're definitely going to hit the roof anyway? I don't know what to do, Help!!! lol
Thanks!
I'll post a couple pictures so its clear what I'm dealing with!

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we had i guy on here the other day wiv the same problem.
u left it to late to top them now even though u could still do it.
it wouldnt help much the best thing id say like i said to the other guy is take the roof of your green house lol.

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SMOKE UP

G'day GHG, Nice Plants.
Try using a product called Rock Juice, or Hulk. They stop your plant from growing in height and concentrate on making strong flowering sites and bushing the plant up.
If they are earlier than 2 weeks in flower, then topping will not hurt it, but it depends on how much u are going to cut off.
If it is beyond 2 weeks in2 flower, then i wouldnt worry too much as they r as tall as they r guna get.
Alternatively try some late stages LST.
Hope This Helps

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XxNinjaxX's Super Lemon Haze - LST + Pics
XxNinjaxX's Afghan Kush X White Widow

your going to promote bottom growth if you top her and it will be shocked for a few days but you are good to go i wouldnt top her myself if your already flowering, but its your plant

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stranger... stranger, now thats a weapon

Yeah Man, as Nellyatcha said, it will stress her, and personally i always try to avoid stress during flowering. It causes ya bitches to Pod up! No1 wants that..

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XxNinjaxX's Super Lemon Haze - LST + Pics
XxNinjaxX's Afghan Kush X White Widow

Thanks for your help guys, dunno what I'd do without all the helpful fellow growers on this site! Think I'll top just above the very top node to minimise damage to potential bud sites almost like a small FIM. And I'll definitely look into getting that product that reduces upward growth.

One more question I forgot to ask: Does a plant generally stop growing in height once flowering begins? or does it continue grow up as well as growing buds?
Thanks

Shit, whats Pod up mean? this is my first grow, not so down with the lingo!

A plant will grow massive leaps when you 1st turn it to flower. It can often double to triple in size.
Im not 100% sure as to y, i dont know the science of it that well, i just think it has something to do with the estrogen levels in the plant.
After the 1st 2 weeks of flower tho, all new growth pretty much stops and buds r the concentration of the plant.
Hope this helps - XxNinjaxX -

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XxNinjaxX's Super Lemon Haze - LST + Pics
XxNinjaxX's Afghan Kush X White Widow

"Pod Up" Refers to when a female plant that is budding produce the male flower aswell. The Pollen Sack..
If u stress a female (often with light leaks or interruptions and the such), then this is often the result.
I.e u get a plant that pollenates itself and ruins ur beautiful buds

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XxNinjaxX's Super Lemon Haze - LST + Pics
XxNinjaxX's Afghan Kush X White Widow

You have enough room to tie them over some. Using supports, and anchor-tying them to the walls, and/or floor, and/or pots.....you should have no losses, and may even increase your yield a bit.