6 hours. Later after they were uncovered and the painting was done the buds on the plants never flowered. Will they bloom next ye ar? What should I do? I live in zone 6
They may have gotten too hot under the plastic. They should be fine. Just keep them watered. You can cut them back after a frost knocks them down.
https://www.gardeningknowhow.com/ornamental/bulbs/daylily/growing-daylilies.htm
I just planted 7 new Day Lily bulbs. I am not sure how I need to care for them come wintertime. I live in Zone 6 Lenexa, Kansas. At some time, should I cover them?
These hardy, and often over-prolific, flowers are quite hardy in your area. There won't be much that you will need to do. You can choose to cover them with a thin layer of mulch. Cover just a couple of inches. Outside of that, there isn't much that you need to do for winter.
https://www.gardeningknowhow.com/ornamental/bulbs/daylily/growing-daylilies.htm