2 strains, on 12/12 for 15 days, ones flowering the other isn't?

[ChadwickGrowz]

Hey guys and gals

I have three plants, two purple Kush, and one BC Blueberry.

They were all vegged for different lengths but the lowest being 9 weeks.

The two purple Kush are flowering beautifully, more than I could ask from my first grow, but the BC Blueberry has done nothing but shoot the two hairs out of a sac, that's it. No buds The tops growth has folded up almost like hands but the palms pushed against eachother fingers up. Hope this helps for a mental image Pics attached

 

[Thundercat]

Its possible that plant got its growth stunted from over watering or temps or any number of things.

Its also VERY POSSIBLE its just genetics. Flower doesn't instantly happen when you change lights to 12/12. Plants take varying amounts of time to TRANSITION from veg to flower mode. This can take anywhere from 6-7 up to 20+ days depending on genetics and environment.

My most recent harvest was running a batch of clones from a strain I've had for 4 years. It always begins to flower about 7-9 days after it goes under 12/12 light. Well this round it was very cold during the winter, and it took over 21 days, and the plants also took much longer to actually mature. They are 9-10 week plants that took about 14 to properly mature because the first few weeks were so cold. I'm stoked on how they are turning out though. While the temps slowed the growth it didn't actually stunt it at all. The buds are big and frosty .

 

[Budzbuddha]

Some are runts sometimes... looks like it’s starting to sex out .

Patience grasshopper .... patience.

 

[Black-Thumb]

Hey guys and gals

I have three plants, two purple Kush, and one BC Blueberry.

They were all vegged for different lengths but the lowest being 9 weeks.

The two purple Kush are flowering beautifully, more than I could ask from my first grow, but the BC Blueberry has done nothing but shoot the two hairs out of a sac, that's it. No buds The tops growth has folded up almost like hands but the palms pushed against eachother fingers up. Hope this helps for a mental image Pics attached

Could be a whole gang of different things! From stuff that you cant control, to stuff that isnt your fault, to stuff that could be something you can fix, to it just taking its time. If the plant looks healthy, dont stress.

If it doesn't look healthy, try to identify the issues it is having and resolve them.