I used VF-11 during the seedling stage and now I am 2.5 weeks into flowering and I am starting to use it again in combo with Miracle grow for orchids... (Because if its good enough for orchids its good enough for weed)

VF-11 is a trace mineral supplement so don't use it by it's self

BTW my plants are now all 5' tall and are budding very nicely already...

Hope this helps,
:thumbsup: