I live socal I have 5 year old curry leaf plants and some gotukola, mukuwanna and kathurumurunga plants and want to know what is the best fertilizer for them.
Why do you think they need fertilizer? It is often not necessary.
I have different colours of Hibiscus,recently I noticed that some leaves turned yellow .I woujd be thankful if anyone could tellme the reason for it Is it an iron defetioncy ?
Too much water? It would be my first guess.