Q.hibiscus not blooming
I have some large Hibiscus plants. They are growing beautifully but no blooms. Maybe two or one at a time and then a long period of no blooms. I live in central Mississippi. I have noticed that my blooms are fewer in the last few years.
Hibiscus need the right amounts of sun, water and fertilize in order to promote flower buds. I recommend that you review the following article and see if you are deficient in any of those three areas:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/how-to-care-for-hibiscus-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-fertilizing.htm