When are they mature enough to flower?

otis the dog · Mar 14, 2013

Hello, this is my first grow [and post]and was wondering how you could tell when they were mature enough to start into 12/12. They are 32 days from seed with 4x45w cfls. I feed them foxfarm nutrients. The tallest one is 7" tall, is that an appropriate height for the age? Any info would be helpful, as I've been reading many threads on here in the last month and learned a lot! Thanks

slim83 · Mar 14, 2013

You can flower anytime you would like depending on how tall you want them to be in the end, if you want to wait for maturity they will start alternating nodes and show preflowers.

PersonalJesus · Mar 14, 2013

I decide when to FLOWER based upon "available space"... You must remember that most plants will double, some even triple, in size when you flip to 12/12. This is referred to as the "stretch". Make sure you have enough vertical space to accommodate your ladies.
You can flip them to 12/12 whenever you like.

otis the dog · Mar 14, 2013

Well , then I better leave them to veg a couple more then anyway. At least until the nodes start alternating. The tallest one is only 7"+, and I have room for 5 or 6 footers.

PersonalJesus · Mar 14, 2013

more veg time equals more branches and bud sites... and that ain't a bad thing

Galvatron · Mar 14, 2013

height of the room is one consideration, the other is how much light you have. you dont want 5-6 footers if youre flowering with cfls unless you want to use a lot of bulbs.

otis the dog · Mar 14, 2013

I was going to supplement the cfls with a 150w hps light. I was told they would be 4or 5 ft.

slim83 · Mar 14, 2013

You are gonna need more than 150 watt hps for 4-5 foot plants

mr2shim · Mar 14, 2013

150w won't be enough for 4-5 plants. Hell, I use a 400w for one plant and I don't think that's enough light.

otis the dog · Mar 16, 2013

Maybe I'll get another 150w hps so one for each end. Eight cfls around the sides,that should be enough shouldn't it?

AimAim · Mar 16, 2013

Those look real good for a month old. Is that 8 plants? If so I'd want at least another 600 on them.

Hugo Phurst · Mar 16, 2013

From what I understand, you need at least 50W HPS/sq ft.

I just finished a plant that was 4'3", multiple tops. It and another bushy plant, used a 600W HPS all by themselves.
I also have 8, 23W, 6000K CFL's for supplemental lighting. So really, it was 800W for 2 plants.

And like mr2shim said (even at 300W total), it's still not enought light (IMO)

Good luck

When are they mature enough to flower?

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