Silverrod (Solidago bicolor)

The shrub you're referring to is Eupatorium perfoliatum, also known as Boneset. This perennial blooms from summer to fall, producing clusters of white, daisy-like flowers that are highly attractive to butterflies and bees. Its sap is toxic to deer and rabbits, deterring them from feeding on it. Boneset thrives in full sun and is an excellent choice for gardens, especially in areas prone to drought.