Echinacea Plant Over Winter. Until natural daylight occurs during the day. Purple coneflower or Echinacea purpurea.
The effect of frost and snow only add to the look of echinacea as the frosty stems stand out stark and bold in the low winter sun. Add compost to the top 2-4 inches of soil. Seeds will germinate in the spring.
Add compost to the top 2-4 inches of soil.
To plant Echinacea seeds loosen the soil to a depth of 12 inches. My guess is it would be alright to leave them outside during the winter so that they still get moisture from rainsnow. Echinaceas tend to overwinter better in larger containers. If you planted some of the old purple coneflowers a great bonus is youll get more echinaceas since you left the plants intact going into winter.