American Arborvitae (Thuja occidentalis 'Hetz Midget')
The American Arborvitae (Thuja occidentalis) itself is native to eastern North America. More specifically, it’s found in southeastern Canada and the northeastern United States, including the Great Lakes region and the Appalachian Mountains.
The cultivar ‘Hetz Midget’ is a dwarf variety of the American Arborvitae. While the *species* is native to eastern North America, the *cultivar* ‘Hetz Midget’ was likely developed in a nursery setting, potentially somewhere within the native range of the species or even elsewhere. The name “Hetz” often refers to a nursery or breeder. Thus, the specific place of origin of the cultivar might be different, but it’s always linked back to the original species’ location of origin.
Therefore, the answer is: **Eastern North America**, specifically southeastern Canada and the northeastern United States. Although the ‘Hetz Midget’ cultivar may have originated in a nursery, its genetic lineage is directly from Thuja occidentalis, making eastern North America its ancestral home.