Q.Calla lily
Two years ago my beautiful yellow calla lily had 13 blooms on it at once. Last year, only one. This year the greenery sprouted and grew a bit then died. Is there anything I can do to try to save it? It gets plenty of water and bright sunlight.
This is an indication that your plant needs to be divided.
The links below will help you.
https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/dividing-calla-lilies.htm
https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/growing-calla-lilies-and-care-of-calla-lilies.htm
https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/make-calla-lily-bloom.htm
https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/transplanting-calla-lilies.htm