2weeks into flowering and no flower?

[tekneeqs]

It has been 2 weeks and 1 day since I've switched my plants into the flowering phase but so far there has been no sign of flowers. How long does it take after switching to 12/12 that flowers appear? I am still using 20-20-20 fert and is planning to use this throughout the whole process until next crop, is this fert affecting the flowering? Thanks!

[rottenPauL]

go for a 15-40-15 or any flowering ferts. It will show the sex one of these days I guess

[kdspecial]

Pictures would help alot. It could be numerous of things.

kd

[stinkyattic]

Ferts could be affecting flowering. Withholding nitrogen is part of force-flowering. So go for a fert with a low 1st number.
Light cycle- if you've got leaks, you've got problems.
Maturity- If plants aren't sexually mature alternating nodes they will take longer to show.
Timing- males tend to show towards the end of the first week, females a little after. So you could look on it as a good sign that you haven't found any males yet.

[Racerx]

I had males show less then a week into 12/12, and some females not show until after 2 weeks. I flowered rather early for their size so they took a little longer. My clones started showing actual bud development a week into 12/12, but they are clones so they keep their mother's maturity so they are fully ready. Some strains just take a little longer too.

If stuff doesnt change, I would definitely look into light leaks. And yeah, 20/20/20 is to much nitrogen.

[Pothead4204life]

yeah females show up later...so its probably a good thing...wait a few more days...they will show their big tits.

[tekneeqs]

Thanks for all your inputs!

I checked out my plants today and saw a little bit of flowering but only about 5% of the whole crop, they are very small little pristils. These were from clones so they should mature quicker right? But I think I might have a light leak problem which I will fix tonight. Thanks again!

[Racerx]

Conditions, strain, history...it all can affect when they bud. These are about 10 days into flowering, but they were recovering from some transportation shock.

[tekneeqs]

Damn that's 10 days only?! Mine is 2 weeks and its not even like that.. Less flowers =(

[LIP]

It can take up to 3 weeks just to show preflowers, and if the plants arnt mature enough to do so, they wont.

[Racerx]

Damn that's 10 days only?! Mine is 2 weeks and its not even like that.. Less flowers =(

those are from clones, which as you read, carry the age of the mother so they were already mature. Those clones were rooted, then had 3 weeks of veg growth, and then into flowering. My unknown soil sativas were far less developed after 2 weeks as they were grown from seed with only 4 weeks of veg.

[UMrocksmysocks]

those are from clones, which as you read, carry the age of the mother so they were already mature. Those clones were rooted, then had 3 weeks of veg growth, and then into flowering. My unknown soil sativas were far less developed after 2 weeks as they were grown from seed with only 4 weeks of veg.

good point, those plants are mature
maybe bump up the P a little bit? or if your room has light leaks.. those are the only 2 things i can think of... are you using a HPS

i went really light on my dry nutes and my plants showed sex in 4 days under a 400w hps with 30 days vegging--and that was from seed

[mashedguy]

grown for years, but never read a lot about it, just used trial and error. quite a few of my grows haven't shown any flowers for over a month after going 12/12. my current crop is only now starting to develop flowers after 6wks of 12/12. They are large plants though, over two metres high at the moment, so don't know if that makes a difference to when the flowers show.