Nutrients and stimulators suitable for us in soils,composts and coir. Plant Magic are UK based. Biobizz are organic certified for peace of mind. Atami, Playgron, Canna and House and Garden, etc are the top Dutch manufacturers. GHE are based in France using technology developed for NASA. Advanced Nutrient are one of the top Canadian nutrient manufacturers. Plant works produce rootgrow, a mycorrhizal innoculant.