I'm thinking no. I've always heard they are hardy in zone 8 and up. I am in zone 8 and mine have always come back and that isn't too far from you. I think if it is worth it to you you might want to try it for a year and if they don't come back you have your answer, but will have to replant.

Hi karate626,

I am on the line between 7a and 7b and have both Callas and EEs come back year after year. The key is to mulch well. I only lost a few EEs this past winter, and they were in areas that didn't get as good a covering as the ones that survived. As emily mentioned, the only way to know for sure is to try it.

Good luck!

Robert

Thanks Emily and Robert. I think I will wait another year to risk leaving the plants outside during the winter. I will be able to propagate some and keep some inside and leave some outside. That way I have some to replace any that were lost over the winter. Thanks again for your advise.

Karate626

I have an elephant ear plant and have what I thought was a bloom but now wonder if it was seeds there are two of them and they are now a bit soft was it a bloom or is it a bloom.

Sounds like it was a bloom. Once they get mushy they are done. Do you have a picture?

I live in Zone 7, and have had both EEs and callas in-ground for several years. Mulch is the key.

I live in Zone 5 so they definately do not survive here. However, if you are a lazy and SMART gardener (!) just put your tubers in a pot with good soil and let them grow there. When the frosts begin where I live, I bring them inside and that is the end of them for that year. I can put them in a sunny window around Jan or Feb. and the foilage begins again. By summer, calla lillies! No digging and searching for the bulbs and they look great in a nice pot, especially if you add some annuals.... Try it!