Why is my hibiscus a pale yellow green instead of dark lush green? I live in Mesa, AZ and have sandy soil. Also, what ferti;izer do you recommend? Sorry, I don't know how to upload a photo. I could send it from my phone with a number or email.
Hibiscus leaves may turn yellow because of either underwatering or overwatering, as well as several other problems:
Here is some advice on fertilizing hibiscus: