Roots Organics Ancient Amber (0.1-0-0.01) is a highly-soluble foliar spray and distinctly active natural nitrogen source extracted from nettle, a nutrient-rich perennial plant used by humans since ancient times, and from non-GMO soybeans. A highly-soluble foliar spray that provides rapidly available nitrogen. Perfect for the transition period between veg and flower. Great to water in, but shines as a foliar feed.