There are several on the property. Picture is the smallest plant. Others are 10 feet tall with no leaves on old growth. Locations are both sunny and shady.
this is one of the shrubs called Mock-orange, in the genus Philadelphus. Our wild species is Philadelphus inodorus, but there are several cultivated species also. The wild one is usually found in rich woods in the mountains and piedmont, but the cultivated one could be found in a much wider area. The wild one has white 4-petalled flowers that have no aroma, the cultivated one has similar flowers that are sweetly aromatic, in general. The leaves are very similar among the species.
Steve Hill, Ph.D., Botanist, SCNPS