Is it possible to post a picture? ~ Mary

Your plant is most likely a Hoya carnosa but there is a chance it is something else. Are the leaves dark green? Many people grow this plant because it looks great with those deep green leaves but to flower you need to provide bright light. A medium green leaf colour is a good indication that the plant is getting enough light. What is the direction the window faces and how far is your plant from the window? Are there blinds on the window?

Mike

The green is fairly dark. It is a foot or so from the window. I do have blinds, but they are closed only at night.
I have no idea how to download a picture.