Black eye susans
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They are perennials....Cut them down and when the weather warms up they should be fine.You do not need to do anything else.
They should just rebloom in the spring. it is ok to clean away the natural dead plat growth if they are a perennial Black Eyed Susan.
Early spring time clean up before new growth starts will help reduce mold and fungus disease problems. Im cleaning up ( trimming back) my fountain grass now as well as purple coneflowers daylillies and peony post frost vegetation dieback. Use scissors or hedgeclippers depending on your garden size to top off leaving 2-4 inches from the soil line.
https://www.gardenguides.com/68863-winterize-coneflower.html
What matters on these is the roots. As long as the soil isn't wet (as in ICE), they'll come back! After 8 years, I'm having trouble controlling mine.
Thanks for the info