Your article about Clivias was very good. You mentioned 20-20-20 fertilizer, which I have never heard of. Can you explain what this is? Is there a commercial fertilizer that I can buy?
Certified GKH Gardening Expert
Yes, there are many different 20-20-20 fertilizers available at gardening stores, hardware stores, and online. The three numbers refer to the amounts of nitrogen, phosphorus, and potassium the fertilizer provides: