Planted calla lilies last year that bloomed lovely this year no flowers just lush green foliage what did I do wrong

Question

I let the foliage rot last year before cutting back

Answer 1

The most common reasons for non-blooming are tubers that haven't reached bloom size yet, too much nitrogen and not enough sunlight. Here is an article that discusses the issue: https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/make-calla-lily-bloom.htm