Q.Coneflowers
I have had coneflowers in my garden for 10+ years. This summer however, they did not grow. What is the life cycle of a coneflower plant?

Downtoearthdigs
Answered on July 5, 2017
There can be many reasons for the die off of perennials from environmental, disease and pests.
https://www.gardeningknowhow.com/ornamental/flowers/coneflower/growing-purple-coneflowers.htm
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