Coneflower Plant Not Blooming
I had 3 small coneflower plants that I planted in the ground in November. They have grown really big and are healthy looking; however, they haven't had any flowers yet. What could be the problem?
Certified GKH Gardening Expert
You may need to add more phosphorus to the soil. Here is more information: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm