Our backyard.

The pink flower is Impatiens balfourii:

It is native to the Himalayas, particularly Kashmir and surrounding areas, where it grows in mountains of 5,000 to 6,000 feet. It was brought back to England and many other European countries as a garden plant, and then it became popular in the San Francisco Bay Area and other parts of the United States. It can now be found growing wild as a garden escapee in Europe, on the US Pacific Coast, and in Wisconsin, where it is well adapted to cool, wet sites.

A few years ago, a friend sent me seeds from his garden in Minnesota. I sowed them and the plant colonized. Email me if you'd like a few seeds.