When to switch to 12/12?

RF90

Active Member
Hey everyone!

I’m at 19 days since germination. I’ve been doing a lot of reading and can’t seem to find a solid answer on when to go from 18/6 to 12/12. I’m thinking at 28 days I’ll switch. Help!
Thank you,
RF.
 

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Hey everyone!

I’m at 19 days since germination. I’ve been doing a lot of reading and can’t seem to find a solid answer on when to go from 18/6 to 12/12. I’m thinking at 28 days I’ll switch. Help!
Thank you,
RF.
Until you see white pistils your plant isn't sexually mature enough to flower. However you can flip anytime you want to but you won't see flowering until the plant is old enough.
 
Until you see white pistils your plant isn't sexually mature enough to flower. However you can flip anytime you want to but you won't see flowering until the plant is old enough.
Ohhh I was under the impression that it wouldn’t show it’s sex until you went to 12/12 lighting. So you’re saying the sex of the plant can show in 18/6 lighting?
 
Ohhh I was under the impression that it wouldn’t show it’s sex until you went to 12/12 lighting. So you’re saying the sex of the plant can show in 18/6 lighting?
You can take a clone and flip it now it will reveal the sex it's up to you when you flip to flower it if you flip before its bigger it could be a Male and definitely affect yield I've been in veg about 6 weeks... this was about a week ago before I put in the scrog
 

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Ohhh I was under the impression that it wouldn’t show it’s sex until you went to 12/12 lighting. So you’re saying the sex of the plant can show in 18/6 lighting?
Yes the females put out preflowers. I trooped upstairs and here's a pic of preflowers on one of my clones in veg.
pistils.jpg
Don't confuse the little stipules (little green pointy things) for the white hairs that are pistils.
 
just remember you need a third of the plants height to allow for streach and flowering to be compleated. and dotake cuttings, if the plant is a good one you can grow more from it. just mak sure you use daylight then artificial light to maintain as clos to 24hrs of light a day to keep the cllone / mother plant going
 
just remember you need a third of the plants height to allow for streach and flowering to be compleated. and dotake cuttings, if the plant is a good one you can grow more from it. just mak sure you use daylight then artificial light to maintain as clos to 24hrs of light a day to keep the cllone / mother plant going
Yea I cant wait till I have space to put a mother plant and take clones it seems the most effective way to keep good bud all year round
 
just remember you need a third of the plants height to allow for streach and flowering to be compleated. and dotake cuttings, if the plant is a good one you can grow more from it. just mak sure you use daylight then artificial light to maintain as clos to 24hrs of light a day to keep the cllone / mother plant going
This is my first grow so obviously I have a lot of questions LOL. But when you say a third of the plants height, what exactly does that mean?
 
This is my first grow so obviously I have a lot of questions LOL. But when you say a third of the plants height, what exactly does that mean?
He's saying they stretch in flower up to two thirds of their height as they begin to flower. So if you flip a 1 foot plant you can end up with a 3 foot plant. That's completely true for seeds but much less so for clones. But you need to leave yourself room for stretch and light distance. Also don't be afraid to super crop (break the plants stem so it grows laterally).
 
Ohhh I was under the impression that it wouldn’t show it’s sex until you went to 12/12 lighting. So you’re saying the sex of the plant can show in 18/6 lighting?

A plant can show sex and flower under 24/7 lighting. Ruderalis and some others. I grew a Moroccan Ketama which some classify as semi-autoflowering/early flowering strain that started flowering under 18/6 lighting.
 
You can veg them indefinitely, people have kept mother plants alive in the vegetative state for years. When to flip is a personal judgement call, but the answer is generally to flip when they're big enough.
 
You can veg them indefinitely, people have kept mother plants alive in the vegetative state for years. When to flip is a personal judgement call, but the answer is generally to flip when they're big enough.
That's awesome I'm gonna look into doing this myself I'm interested how you keep her the size you want without flowering
 
What are they then? One of my plants has a few of these and I thought I had a hermie.
Ahh learning about cannabis morphology, fun isn't it LOL. Stipules act similar to leaves and work in energy production. But I didn't know that when I started growing and I thought they were pistils until I finally saw pistils. Truth is my very first grow I chopped the females and kept the males because they had actual flowers!!

Good question and @RadicalRoss answered you but I thought I'd offer some color :)
 
Ahh learning about cannabis morphology, fun isn't it LOL. Stipules act similar to leaves and work in energy production. But I didn't know that when I started growing and I thought they were pistils until I finally saw pistils. Truth is my very first grow I chopped the females and kept the males because they had actual flowers!!

Good question and @RadicalRoss answered you but I thought I'd offer some color :)
Speaking of learning about growing weed, I didn't know until today that male plants don't produce the seeds, the females do.
 
Speaking of learning about growing weed, I didn't know until today that male plants don't produce the seeds, the females do.

I've been reading about breeding recently. You can take this hobby really, really far it seems like, and being WFH pretty much all year (with no end in sight) leaves me with lots and lots of time with the girls and to think about projects for the future.
 
Just make sure you keep her in short nights and they'll just keep on vegging. Keeping them smaller is more about training and how much (or how little) you feed them. Eventually I want to try something like this


That is nice BUT, They take up space!
I run a perpetual harvest style.
Plants are cloned, in root riots. Then they are sent to Solo cups at roots showing.
They go on to 1 gallon pots. Then 3 gallon pots. They finish in 5 or 7 gallon pots.
I take the clones from trimming the plants that are up potted to the final pots and use the best for the clones. These final pot plants, are run for 8-10 days and into the bloom room's they they go.

Topping is done in the Solo cups and some extra as needed in the 1 gallon pots.

I don't keep mothers...
 
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