Q.hibiscus not blooming
Have a 15 year old hibiscus plant that has bloomed every year except this year. The plant foliage is green and full. No sight of any buds. Please advise!! Thanks.
Likely to much Nitrogen in the soil. This can cause lots of lush leaves and no flowering.
Phosphorous is needed and Bone Meal is a great way to add this to the soil.
Here is a link with more information.