Exactly spray her before she goes to bed(I let my kids party all day and night) or when she is not in direct light from a HID as you can burn the leaves. I would flush and feed at a low dose. I use atmost like one fifth of the recommend dose on average. Its best to feed the same every time and as apposed to one a week or every two weeks. You got to break down the dose to one fifth say then break that down again to the amount of times you water in the week or two week period that the company recommends.
What strain is she?
c