I recently received some Cinnamon ferns (Osmunda cinnamomea). My goal is to grow them as long-term companion plants with my flyraps, sarracenia, and temperate sundews. I didn't just randomly choose any fern, I had cinnamon fern recommended once as a companion plant for cp's. Anyways, I want to figure out how to foliar fertilize these ferns without damaging my carnivores. I read that a fern, when potted straight in peat, does best when fertilized twice a week. Has anyone tried this before, and can anyone recommend a good fertilizer that's relatively safe for carnivores if they happen to get a little on their leaves? Thanks.