Daisy Fleabane, Erigeron acris (formerly philadephicus)
A charming, delicate wildflower that blooms between late spring and early summer depending on your location. The flower head is small, 0.5-1 in. and has 100 or more white to pink to pale magenta petals. It tolerates some shade in hotter climates. It is easy to grow in a variety of garden locations. It will self-seed. Plant in mass in a garden, or let it naturalize. Plants will spread to become a groundcover.
These sweet flowers volunteered themselves around one of my blueberry bushes. They spread and were keeping down other weeds, so I let them be and eventually identified them as Fleabane. Photos by K. Mulcahy
Sources:https://plants.ces.ncsu.edu/plants, https://www.wildflower.org/plants/result.php?id_plant=caam2, other authoritative resources and personal experience.