are they ready to harvest? please help! first grow.

I have a Grand daddy purp that has been flowering for about 6 weeks now. Is it ready to harvest? if not, how much longer?

I also have a unknown plant that has been flowering for about 6 weeks now too. is it ready to harvest? how much longer?

when should I start flushing? any advise is appreciated, thanks!

the first two pictures are of the GDP and the second two pictures are from the unknown plant.

not even close. start flushing now

Don't even start flushing yet.

give it anotha' 2 to 3wks flowering; then flush & harvest you'll have some good GDP & I wish I could smoke some of it with U when U finish dry'n & curing it nside of some glass jars put some lemon or orange peels nside of jar; you'll Thanx me for the info!!!