Well, it seems that when any plant puts out seed, it takes energy out of it, so that could very well be true. :) Arum

Toni,
Most clivia breeders take seeds from top plants every year, However, I agree with Arum. It may be good to skip a year from time to time (remove the seeds).
Another issue to consider, Clivia seeds flower every 12 months. Seeds are normally viable after 6 months. So, is this not the plants way to recover if seeds are picked when ready and allow the plant 6 months rest befor the next flowering?
Regards