It seems they can get quite old. I have a huge one I got from my mother, and she got it from her mother. It hasn't bloomed since I've had it, though - but it's alive!

I've had a few smaller ones in recent years, with lots of flowers, but they have died. I may have watered them to much.

In 1979, I had a huge Philidendron, it was much too big for where I lived at the time, so I gave it to my sister and BIL. They still have it, but they have cut it down a bit. Some plants just seem to thrive.