I used a tablespoon in a gallon of warm water..(helps it, to mix well): every third watering. I start at about 4 weeks flowering.

At harvest time, I noticed the normally white roots were stained brown; so I know it made it to the roots...I hope it doesn't seal anything off?...(the mollases coating on the roots?)

...anyways...it made for smooth smoke...:thumbsup:...enjoy