Overwintering in Pots
I planted some calla lilies in a pot for the summer. To overwinter them, I placed the pot in my greenhouse on a bottom shelf and did not water. The greenhouse is heated but it will still drop down around the freezing mark (I'm in Zone 5). I checked on them yesterday and the bulbs have all rotted. What is the best way to overwinter them in pots? Do I still need to lift the bulbs?
Certified GKH Gardening Expert
Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/calla-lily-winter-care.htm