A month ago while on vacation, my granddaughter watered my plants. I noticed after about 2 weeks some of the leaves were turning brown. I called and ask her if she had watered them, she said yes and also fertilized them. She said she fertilized them with fish fertilizer. Could this be what is wrong with them? If so, what can I do? It looks like they are dying. Please help if you can. Thank You.
Bird’s Nest Fern
Certified GKH Gardening Expert
Yes, the fertilization could be the problem. It could be that your granddaughter applied too much fertilizer, causing fertilizer burn. This article explains what it is and how to deal with it: