East coast. 4 seasons.
If they have finished flowering for the season, then it is likely going dormant. The plants could even enter dormancy early as a result of the hot temperatures affecting much of the country. For additional causes of leaf yellowing, this article should help: https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm
I have pink daylillies that bloomed earlier. Now there is only the green stem and leaves left. Do I leave this, or do I cut it all off as you would daffodils?
Cut off the spent flowers, but you should allow the plant stalks to die off naturally rather than cutting them down right after blooming. This will ensure the bulbs have enough energy for continual growth. Later in fall once the stem has turned yellow or brown and died back, you can clip it off at soil level.
My daylilies need to be dug up and replanted. The bulb is showing through the dirt. What is the best way to do this? Thank you for your help.
Norma Fox
Dividing perennial plants can be done in fall or spring, depending on the plant, where you're located, or personal preference. This article can help: https://www.gardeningknowhow.com/garden-how-to/propagation/propgen/dividing-plants.htm
My daylilies have become very crowded. I need to dig them up and replant. How deep should I plant them?
This article will help: https://www.gardeningknowhow.com/ornamental/bulbs/daylily/growing-daylilies.htm
How do you care for these perennial plants in the winter? Should you cut them back? I have Daylilies, Caramel Coral Bells, and Lady's Mantle.
These are all perennials and should die back on their own. I would hold off on cutting anything back until spring, just prior to new growth if there is still any dead foliage. You can mulch over the plants if desired.
For more info on their care, the following articles will help: https://www.gardeningknowhow.com/ornamental/bulbs/daylily/growing-daylilies.htm
https://www.gardeningknowhow.com/ornamental/flowers/coral-bells/coral-bells-plant.htm
https://www.gardeningknowhow.com/ornamental/flowers/ladys-mantle/grow-ladys-mantle.htm
I just dug up an extremely over-crowded bed that has been neglected for years. My mom lived here for 25 years befor moving and as she got older, the garden got less attention. I plan to move them to the front yard where there is more sunlight but I'm not sure when to do it. Also, we are having an unseasonably warm winter so far. Thank you!
Denise, I always recommend that most plants be dug and divided in the fall just after frost has knocked the foliage down. It is not too late in the season to do this. By dividing and replanting while the plant is dormant allows the root system to develop without the added load of foliage and blooms.
Will my red, pink, and garnet daylilies go back to their original colors next year? They all turned yellow after I moved them this early spring.
It is possible that your daylilies could be TC (tissue culture). TC plant material often reverts back to one of the parents if a hybrid. For example, Hosta Patriot will "throw" a solid leaf instead of the variegated it is supposed to be. Hopefully this is what has happened to your daylilies, and future blooms will be their correct color.
Another possibility could be that a H. Stella 'd Oro set seed in the past. Those seed could have germinated in the clumps of red, pink and garnet daylilies, and are blooming for the first time this year.