Q.coneflower lying down on the job
I have 2 groups of coneflowers, a red (salsa) and a white (milkshake). They are not upright. They were planted 2 seasons ago and lie down more than stand up. They are in a well prepped bed, full sun, behind a group of bearded iris. You really don’t even know they exist. There is a knock-out rose behind them but it isn’t shading them. the flowers are fine but they are only about 8″ from the ground because the stalks are mostly on the ground. Last year I staked all of them and they didn’t appreciate it. the flowerbed is watered well on a schedule.
thx
Alexa

Certified GKH Gardening Expert
It is very possible that they are overwatered. This will cause the flowers to lay over. Echinacea needs a good dry out in between waterings, and will not tolerate consistently moist soil very well.
This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/flowers/coneflower/growing-purple-coneflowers.htm