When do you start counting the flowering days?

a mongo frog

Well-Known Member
I know each strain has a certain number of flowering days (approx) before harvest. The thing I DON'T know is...WHEN do you start counting those days? I know it can't be when the hairs start showing...that's got to be too early, but I can't figure out, nor can I find when to start the count.

Please help me out with this (probably dumb) question.

thanks!
Its when you change the light to 12/12 is when you start counting. Outdoor does it same as indoor, only God has the timer.
 

Chief Chieferton

Well-Known Member
I grow outdoors. Lights don't mean anything to me. So, when you say it is "flowering", is it after it actually looks like a bud?, or when you can tell it's going to become one? I just don't know when to start "day 1".....sorry to be so dense.
I grow outdoors. Lights don't mean anything to me. So, when you say it is "flowering", is it after it actually looks like a bud?, or when you can tell it's going to become one? I just don't know when to start "day 1".....sorry to be so dense.
You will notice a change in new foliage. Where there was just a few pistols they will start to multiply quickly. The 12/12 and nearly everything else indoor related is useless to outdoor grow. Apple's and oranges
 

Ghost of Davy Jones

Well-Known Member
No. That's way too late. Outdoors they start flowering way before 12/12 light schedule.

They start flowering around mid July to early Aug.
Very true around my area.. August 6th is the magic day. My local news caster did a segment a moth ago or so and went into detail and explained it.
 

ANC

Well-Known Member
I'm starting to worry about day lengths getting longer for my outdoor winter grow.
THe purple plants are done but the green ones have a way to go still and we are approaching our spring equinox.
 

whitebb2727

Well-Known Member
I'm starting to worry about day lengths getting longer for my outdoor winter grow.
THe purple plants are done but the green ones have a way to go still and we are approaching our spring equinox.
You may get some that reveg unless you cover them and do light dep.
 

ANC

Well-Known Member
If they can hang on two more weeks I can bring them indoor and run them in the grow room.
We are still running 16/8.
 

Ghost of Davy Jones

Well-Known Member
No way to narrow it down to the exact day and would vary by strain.
It would only vary if the strain was auto. Anything that's not a ruderalis strain changes when gods clock tells it to. That my friend is the same for all photoperiodic plants. I understand your saying some have a delayed reaction or just some just wait to react to the change in photoperiod but that's simply not true. I do trust my local weather man's explanation as he is a meteorologist and he wouldn't be saying that on FOX news (and keep his job) if it was wrong information.
 

whitebb2727

Well-Known Member
It would only vary if the strain was auto. Anything that's not a ruderalis strain changes when gods clock tells it to. That my friend is the same for all photoperiodic plants. I understand your saying some have a delayed reaction or just some just wait to react to the change in photoperiod but that's simply not true. I do trust my local weather man's explanation as he is a meteorologist and he wouldn't be saying that on FOX news (and keep his job) if it was wrong information.
Wrong. Just flat wrong.

Indicas will flower first then the more sativa the later it will start.

Mine started anywhere between July and Aug. All different times.
 

whitebb2727

Well-Known Member
They doen't START later...... Sativas just take longer to show the signs. Their still doing their thing when Gods timer goes off, They just take their sweet ass time.
Some do. I get up to 2-3 weeks difference in start times.

You can't put a exact start date on all your outdoor plants. You just can't.

Pure sativas are equatorial. Used to near 12/12 year round. Some take 10/14 to flower. That means they start later in the year.

Some early strains will start flowering under 15 or 16 hours of light down to 12 for the purer sativas.

So how do you figure they all start at the same time?
 

chemphlegm

Well-Known Member
if a plant is encountered and has no flowers it is not said to be flowering no matter the time of day/year.
notice most everyone here with a finished pic, "9week strain, been 9 weeks since flip" is suggested another couple weeks?
yep, those were around the two weeks after the light change that the plant was still not flowering.

ask your favorite breeder about the time it takes to flower, and what they mean when they say "8 weeks" to finish. I did. my room controls and understanding improved instantly. so did my flowers.
when they flower, they are flowers, flowering. even.
 

whitebb2727

Well-Known Member
How the previous generations were grown can influence when flower starts. If all the strains you are growing were breed I does over generations it is reasonable to think that flower will start around the same time.

If breed outdoors from different regions they can be all over the place.

I reduce my indoor timer a little at a time sometimes. Most will start at about 14.5 to 14 hours light. The dark period is what causes flower though. I'm just stating light times.

Figure that the days get shorter by just a few seconds each day at first then a minute a day or so then more and more each day that can leave up to a months difference in start times.
 
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