50 Strains of Green By Jack Greenstalk plant food the kit is entirely self-contained

the kit is entirely self-contained and includes complete instructions for use and explanations

shrubs and houseplants

Includes batteries and case

the kit does have chemicals and should not be used by young children without supervision

ideal for the calibration of all pH meters

50 Strains of Green By Jack Greenstalk plant food the kit is entirely self-containedAuthor Jack Greenstalk has compiled over 250 full color photos of 50 strains, as well as documented his experience using the flower. Jack researched far and wide to identify who the original breeder of each strain is and information on how the strain grows, smells, tastes as well as how it may potentially impact the individual who consumes it. Originally written for paperback as a coffee table history book of strains that grow and finish with dank