I have 2 Hibiscus trees and I live in Alabama. I keep them in pots so I can bring them indoors for the winter, but in summer they are brought out for the season. If I need to fertilize them every 2 weeks, how much do I use? Currently I am using a water soluable Miracle Grow plant food. I don't want to burn the roots, but I want to make sure they get enough fertilizer to produce flowers all season long.
Certified GKH Gardening Expert
If you haven't read it yet, this article should help: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-fertilizing.htm