Olivenbaum Dnger von Flora Boost Growing wasabi has been one of our toughest challenges. To date, we've yet to pull off a successful harvest. A big part of that struggle is trying to cultivate this cool, shade loving GMO Crops, Animal Food, and Beyond FDA Easy Low Maintenance Houseplants Yard and Garden Cast Iron Plant, Zone 5 8 Heres the secret: timing is everythingand so is the right fertilizer. Want to know exactly what I use and when to use it?, Comment fertilizer below and Ill send you the link to my blog post