I have one of these plants that is very old, it has been passed down through my partner's family. I have gotten it to bloom once a year for the 6 or 7 years we've had it, but this year it has bloomed many times. It has grown buds five times throughout the summer and now it has buds again. Not that I'm complaining, but I am a little worried it is at the end of its life. Has anyone heard of this happening before?