Foxfarm FX14086 Bush Doctor® Boomerang® Liquid Fertilizer, 1 Qt, 2 -0.2 -0.3Boomerangs microbial based formula helps heal damaged root tissue while encouraging new root growth and vegetative growth. It contains solubilized organic nutrition that is immediately available for amazingly fast recovery of stressed plants; boomerang can also be used as a vegetative supplement. 1 Qt Fertilizer analysis 2 0. 2 0. 3 Comeback formula Microbial based formula helps heal damaged root tissue while encouraging new root growth & internodal