The clivia I got from my Mother In Law some 20+ years ago just keeps on blooming for me. It is the only plant that loves being in that dark garage to over winter. I bring it out every spring and it is filled with scapes. I have had it in the very same pot for 20+ years. It loves being crowded but I think it's going a little overboard! I might have to dynamite it out!
This year there are about 10 bright red seeds from last year's flowers for me to try to propogate. I have successfully grown 1 seed. It currently has 2-2" leaves and is 1 year old. I think it might bloom by the time I am 70 years old!