Trichrome issue

[Dragoonlady]

I have an outdoor garden, some of my girls have nice trichromes, some have almost none. My question is when do you normally see trichromes appear?

[9fingerleafs]

during flowering after the first 3 weeks trichomes start to develop, how is the health of the plant? there is one mite that eats trichomes but you would see many other problems too