Powdered Agricultural Gypsum For Ponds Good Evening, I'm Fawz , From Iraq My Question Is An Agricultural Question..?

Good evening, I'm Fawz , from Iraq my question is an agricultural question..? - powdered agricultural gypsum for ponds

Gardenia plant that I planted in my garden at home for 8 years. This plant has to be turned into a great green tree, but if the golden age came to dry all the flowers from the plant and fall to the bottom of the iste Gardenia, as a bride, not keep them in possession of these flowers.
Every month, we give food or powdered iron, calcium, NPK, magnesium and give him water every day or so ..
Please help me and find the solution to my problem. I will Woud you for your reply, thank you very much.