Ecogrow Powdered Rockwool Nutrients
Rockwool became a popular growing medium in 80's and continues to be so. It is sterile, inert and moisture retentive. Eco introduced the "R" formulas in the late 1980's to fulfill the exacting requirements for plants growing hydroponically in this growing medium.
Ecobloom "R" (6-25-17) is the companion to Ecogrow "R" and fulfills the same purpose as Ecobloom (3-35-10) in promoting flowering and fruitation on mature plants while maintaining health and vigor.