Question
After Easter each year I plant my easter lilies in my garden. When they come up
again in following years it seems they come in different colors.  How is this
possible?

Answer
David, most lillies grown today are hybrids, the offspring of two completely different varieties used to produce a desired color or growth habit. As such, your lillies may be reseeding. Seeds from hybrids never produce identically to the parent plant. Instead, they vary in growth habit, size, and color. This is very common with today's perennials and bulbs. That is why breeders do not use seeds when replicating plants. Instead, they use cuttings or grafting.

To prevent this from occurring in subsequent years, be sure to deadhead the plants regularly. This will prevent seed pods from forming and dropping.

I hope this answered your question. Please write again if I can ever be of assistance.

Regards,

Mike