COCO COIR GMO Strain doesnt stop growing in height and its week 10 of flower!

[talxic]

I have a strong GMO strain that i cant tame. The plants are still shooting new sprout on top. I had to train many tops and bend them horizontal. If i hadnt done that, the Plants would be probably around 2 meter high now.
Below you see some background info. I tried all in my sleeve to kick the plant into proper Flower and stop growing in height. But nothing helps.
I`ve been told its a 10 week strain but i think its AT LEAST 13 weeks. Flowers look still very young.

Any Ideas why this is happening??? How can i stop GMO from growing into the sky? Thanks


History (See pictures)
On the day of Switch to 12/12: Using New Millenium "Decicion" fertilizer one time, to kick in flower
Week 3 of 12/12 start to show clear signs of flower
Week 3: Applying foliar Grow Stop twice withing 3 days.
Week 3: Adding another 1 hour of darkness to the room, to promote switching to flower.
Week 6 of 12/12: Flowers in the size that other Strains have in week 2
Week 9.5 of 12//12: Plants still sprouting slowly. Buds still small and with long pistils.


Environment:

• Nighttime is pitch black. Timer is checked regularly, so not interruption of darkness
• Temp and Humidity is monitored with App.
  • Daytime: 25-28 Celcius, 60% Humidity Average.
  • Nighttime: 28-29 Celcius, 63% Humidity average (its warmer in nighttime cause i cant use airco nut need to deshumi.
• Using CO2 950ppm
• PAR on canope: 750-900
• Coco Substrate in Pots
• New Millenium Fertilizer Line, OSA, RO Water

[Blowdout2269]

Uh...if that young lady is thirteen weeks, your gonna have a bigger problem than you think. Looks like your running outta headspace, right? This might be your saving grace:

https://www.growweedeasy.com/how-to-super-crop-marijuana

[talxic]

exactly! head space is gonee. thanks for the super cropping idea- i had to do the bending in week 3 of fflower allready ;-)

[SoOrbudgal]

I guess this could be one of those strains that doesn't follow the regular steps once placed into flower. Like i said just guessing that perhaps she wanted to grow in veg much longer before she stepped into the flower mode stretch ? All you can do is in my view to super crop it break/squeeze the main stalk and bend it over.

[talxic]

Thanks for the comment. its calming to knwo that there are really those untaimable wild horses that dont follwo the common rules. I a learning to live with it and wait for the reward ;-)

Stepping into flower was in this case not my decicion, but hers, as you said. For the next round, i will reduce plants per meter also and use supercropping. Thanks for the ideas!

[dilvish]

Those temps could be very detrimental in flower. Try to drop them a few degrees. Try flushing the plants with plain water (really good flush) and focus on nutrients that only encourage bloom. Aside from that some strains take longer than others. Don't adjust the light schedule...otherwise the plants look healthy.

[talxic]

thanks a lot for your hints. very helpfull and broadens my view on how to handle the issue!