Burmeseanswered grow question 3 years ago Hi there, Some booster are recommend to use throughout the flowering stage and some at the late flowering stage.When I read about your TA/GHE bloom booster.It's recommend to use during flowering stage.It can be use either add to water or as foliar spray.But I don't recommend to use as foliar spray for cannabis plant especially during flowering.here's the link for you.Good luck Happy growing... ✌️ https://www.eurohydro.com/bloom-booster