How long before harvest?

So I have 2 strains cherry pie and tahoe OG not sure which is which....the 3 smaller obviously more indica and flowering a lot faster than the 2 larger more sativa ones. Been flowering for 19 days and want to know how long till i can cut down the 3 smaller ones and then how long for the bigger ones? in a 4x4x7 tent, 6" inline to carbon filter, 600 watt hps cool tube (lights are 10" from leaves) ff soil and nutes, spray with neem oil once a week and long great so far. They are roughly 3 feet tall and 18 inches wide any idea on yield either? thanks guys

6 weeks ,8 for the sativa.dont know how much youll get but looking good so far

Ya you got some time left on those girls. If I were you I would lst those bigger ones and lower the light a little to give the smaller ones some more exposure. Looking good though keep it up

not nearly ready. looking good. GL

Why spray with neem oil every week? Have you had a bug problem? If not then I'd back off that either a bit, or totally now you're in flower.

You easily got 6 weeks left if not more, but looking good.

ill stop the spraying 3 weeks before harvest...the reason I have had no bug problem is because i take care of them and spray regularly....why wait until an infestation when you can stop them early on