Q.frost killed daffodils in pots
I filled a planter with daffodils last fall and they were coming along beautifully this spring (about 4 inches tall) when we got two rounds of freezing weather. The pots are now bare. Will they come back or do I dig them out?
Daffodils can generally take light frosts, but a couple rounds of very cold weather certainly can kill the flowers.
It is possible that the bulbs themselves may also have frozen since the plant was potted. Often times the pot does not provide enough insulation against the cold.
The bulbs will not flower again this year.
Allow the pots to dry out and lift the bulbs to store. If they froze they will become soft and mushy. They should be thrown away if this is the case.
If the bulbs are firm, you can store and plant out again the fall.
Here are some links with more information.
https://www.gardeningknowhow.com/ornamental/bulbs/daffodil/daffodil-planting-care-tips-how-to-plant-daffodils-in-your-garden.htm
https://www.gardeningknowhow.com/ornamental/bulbs/daffodil/transplanting-forced-daffodils.htm
https://www.gardeningknowhow.com/ornamental/bulbs/bgen/preparing-bulbs-for-winter-how-to-store-bulbs-for-winter.htm