I have stored my elephant ear in the garage the last 2 winters. This year it appears to be rotting. I can easily pull out one of the trunks and the top of each trunk has mold on it, and is very spongy. There are a couple shoots coming up, but do not look healthy.
Certified GKH Gardening Expert
Spongy and soft bulbs should be disposed of. They are not viable bulbs.
Temperature fluctuations are the likely cause.