the time to switch to bloom, is when vertical growth stops. then for the next two feedings i overlap veg and bloom nutes. then all bloom till flushing. a lot of growers will flush between switching, that doesn't work for me , because i ues the espoma and it has a slow release, so flushing mid stream doe's not work for me. unless you show signs of stress from salt buildup, then you might have to flush em!:smokebuds

atience is the key!