Astilbe 'Rheinland'

Given the name ‘Rheinland’ (Rhine Land), it’s highly likely that Astilbe ‘Rheinland’ was either:

* **Developed in the Rhineland region of Germany:** This is the most probable scenario. Nurseries and breeders often name cultivars after their region of origin or inspiration.
* **Developed by someone of Rhineland descent or with an affinity for the region:** Less likely, but still possible.

Therefore, the likely geographical location or native region *associated with the *development* of this cultivar* is the **Rhineland region of Germany**. Note that while the *cultivar* was likely developed in Rhineland, the Astilbe *genus* is native to Asia and North America. ‘Rheinland’ is a cultivated variety, not a naturally occurring one.