Late bloomer

[SirSmksAlot]

I just entered week 3 of flower and I have noticed that 1 of my plants is a bit behind the others. I'd say 4or 5 days behind. The plants are healthy other than that little issue. Was wondering if anyone has any idea what could be causing that? I'm growing in a dwc set-up. Non recirculating.

 

[9fingerleafs]

probably different strains, if theyre the same strain then different phenos, if theyre clones then something is wrong