Q&A for How to Winterize Calla Lily Bulbs

No. Put them somewhere cool, around 50-60 degrees and the bulbs will hibernate. If they get too cold they will just die.

Callas make seeds, but it might take you two years before you can turn them into flowers. You must wait till the seeds are perfectly ripe, dried in the pod, then, as with bulbs, plant them when it is warm and bring them in when it is cool. They will do well with fertilizer and eventually will gain enough size to put out flowers. Good luck!

Yes, put them in the 70 degree basement. Callas shouldn't be stored in temps lower than 50 to 60 degrees.

Let the plants go dormant and greet them in the spring.

That's the fruiting body. Let it mature. Once it's turned brown and dry, the seeds will spill out; you can plant those.

Yes, getting them started indoors is a great idea. They like moisture, so keeping them watered is also very good.

Yes, as long as it doesn't contain sawdust from walnut or treated lumbar (including plywood).

I tried an experiment with Calla Lilies that I had planted outdoors last year. I have never had success storing bulbs over the winter, so I left mine in the ground for a long Connecticut winter. I cut all the lilies down to about 2 inch height prior to the first frost, then put about 6" of packed baled hay over all of the entire Calla lily garden (2' x 14' area). Uncovered them in spring and I have many Calla Lilies growing this year. Definitely worth doing it again.

Callas like warmth, so if it is consistently warm where you are at, like above 70 degrees, then plant them out, otherwise give it some more time.

They are seeds. Let the pod turn brown and dry completely, then plant the seeds in spring.

Calla lilies fall asleep sometimes during summer and wake up during winter. Wait for the plants to wither, which means dormancy. Then if you need to you can divide them by breaking the joint of the bulbs that are well sized with many eyes. This way you won't disturb them.