I have been planting hibiscus plants in pots and they are more than five years old. I want to have a perfect bloom in my hibiscus pots. I place them where they can have more than six hours of sunshine. I actually want to know which fertilizer to use and how frequent to use it.
How to Care for Hibiscus
Certified GKH Gardening Expert
To encourage blooming on a hibiscus, you want to use a high phosphorus fertilizer. The phosphorus encourages more blooms and larger blooms. It is best to follow the directions on the package for frequency as different fertilizers come in different strengths.