What to do if plant is not flowering?

Have a plant she's def a female but isn't flowering on schedule with the rest. I am running a RDWC 4 system setup. 3/4 are doing great but one of them, tho healthy and happy, growing away isn't wanting to flower. Any ideas? Entering the 3rd week of flower cycle.

Thanks so much!

She looks just fine to me!

Did you do the sacred flower initiating dance?

Smack her and tell her to get shit going.

possibly a more sativa pheno? shorten the lights on period see if that helps.

crimsonecho said:

possibly a more sativa pheno? shorten the lights on period see if that helps.

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Thank you, I heard that but thought I would check here first. I appreciate the help.

How long did they veg for? Plants need to be mature before they will begin to flower, so its possible that phenotype takes longer to mature then the others. Also possible it just takes longer to transition to flower, but 3 weeks after a light flip sounds like it was probably young when the lights got flipped.

Florigen manipulation.. you can give her 12/12 or 11/13 or 10/14 or just an extra dark cycle to let Florigen build up. Having heavy reds help transition to flower too. They think fall is coming. I've had it happen to me a few times too, they get there in due time. Personally I veg for 6-8wks min. In that time most start showing preflowers. I also supplement 660 nm & 730nm light as well to help + emerson effect.

Any opinions on Bloom Yellow Bottle nutes specifically Florigen? I've seen this product before but try not to believe in magic secret sauces. In theory in kinda makes sense, but kinda questionable to supplement Florigen.