Orchids should not be fed with general purpose plant foods for many reasons. Most importantly the nitrogen supply in the mass market product will usually contain significant levels of ammonia and urea. Urea in particular can become toxic very quickly in orchid growing media and is best avoided for that reason. Orchid Focus is completely free of urea. Orchid Focus is manufactured from the purest and most soluble mineral salts. It is fortified and enhanced with a complex profile of organic plant acids.