I've had Purple Coneflower plants for years. Pulled some out last year with Aster Yellows. Every year some of the plants' leaves turn brownish and harden a bit. I've never understood but removed them as they appeared. This year, two of the plants' central blooming stalk - all its leaves and leaves to all the buds down the stalk have turned the same brownish color and have the same tough texture. The flowers are still beautiful and most of the leaves on the whole plant are a healthy looking green although some look like they want to join their ugly friends. Is this a fixable condition?
I've had Purple Coneflower plants for years. Pulled some out last year with Aster Yellows. Every year some of the plants' leaves turn brownish and harden a bit. I've never understood but removed them as they appeared. This year, two of the plants' central blooming stalk - all its leaves and leaves to all the buds down the stalk have turned the same brownish color and have the same tough texture. The flowers are still beautiful and most of the leaves on the whole plant are a healthy looking green although some look like they want to join their ugly friends. Is this a fixable condition?