You dont need to spray or mist down the plants much more, especially late in the day.
I would acquire some Fox Farms Big Bloom and it wouldnt hurt to churn your soil with a trowl around the base of your plant, then cover the area with some mulching material to hold in the mositure. Seaweed extracts or Maxicrop makes a good foliar feed if you like to spray down your plants. Just do it by midday and avoid it on cold days. It's better to just mix your nutes and do soil drenchs.
While your out acquireing the Big Bloom for the beganing of the flowering process, get some Grow Big since you say you never fed them except with what you mentioned. I would give her a nice feeding with GB and the following week in August start the BB and you should have some big sticky buds.
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