Are homemade natural fertilizers for orchids a hoax?
I am confused about whether epsom salt, rice/potato water and eggshells can really fertilize orchids. I was sceptical but I found two articles by different orchid societies in support of these natural fertilizers:
1. Article by AOS on the benefits of Epsom salts:
Epsom Salts
2. Article by Napa Valley Orchid Society on 10 natural fertilizers (including egg shells, potato water, epsom salt, etc.)
The Top 10 Natural Orchid Fertilizer Options To Grow Healthy & Optimal Orchid Plants
What do you think?