"First, April, she with mellow showers
Opens the way for early flowers;
Then after her comes smiling May,
In a more rich and sweet array;
Next enters June, and brings us more
Gems than those two that went before;
Then, lastly, July comes, and she
More wealth brings in than all those three."
- The Succession of the Four Months by Robert Herrick
Despite finding similar photos that identified these pretty flowers as pink black-eyed susans, I kept digging to discover that they're purple coneflowers in the Echinacea genus of the daisy family.