Q.How Do I Treat Calla Lily Seed Pods?
I would like to continue the calla lily color, but waiting for the rhizones to grow large enough to split will take too long.

Certified GKH Gardening Expert
Calla lilies can be divided every 3 to 5 years, so yes, it can take awhile.
Plants grown from seed, however, may not look like the parent if it's a hybrid. And it may take a calla lily grown from seed 3 years to flower, so you aren't much better off.
Here are the instructions:
https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/calla-lily-seed-info.htm
https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/dividing-calla-lilies.htm