Aldo90answered grow question 2 years ago Foxtails will keep spitting out white regardless. Don't let them turn brown, you can't use that as a guide now in my experience. Last summer I had 3 pineapple express all suffer through a 2 week freak heatwave, foxtails were everywhere all over full plant. The whole buds foxtailed off all sorts of ways, I was waiting for them to go brown and kept waiting. When I finally got the scope out I realised I'd let them go far too long.