How long til flush and harvest?

Just wondering, my first plant I harvested turned brown on me in 1 day, never got the chance to flush, the trichs appeared on these other two about 6 days ago. Just wondering about how long til 10 day flush and harvest?
They are automatic bubblelicious and purple cheese automatic, about 2 months old to the day.

I don't understand the 'plant I harvested turned brown in one day and didn't have chance to flush' part.
Did it turn brown and that was why you harvested?
The pics you show have quite a while to go, first pic is very little if any good at all with the lights on, and the trichs are not even mentioned, but estimating by the color and length of hairs in second pic, I would guess at least week and half.
You didn't mention the color of the trichs.......
Did you even bother to look and see the color of them?

Clear, unless you know of a strain that turns from clear to cloudy and amber in 6 days