Humboldt County's own Purple Maxx is completely organic. Made from hydroponics central in Humboldt Country, California's Emerald Triangle manufacturers, Purple Maxx used to be called Stacker and has been shown to improve essential oil production. Purple Maxx is a combination of organic compounds that encourages plants to "stack" their flowering sites closer together, producing more flowers. This nutrient solution is dye-free and incredibly versatile. Use it with soil or hydroponics growing, inside or outside.