The process to remove caffeine from coffee beans using water was first developed in Switzerland in the 1930s, but was only trademarked as the Swiss Water Process in the '80s by a company in Vancouver, British Columbia.
How to Grow Primrose Flower Plants. Primrose is a hardy perennial flower, that includes a wide range of varieties. Primrose is native to Asia, Europe, and North America. In North America, they originally were found from the Midwest to the Northwest areas of the U.S.
General Culture. Regardless of whether you are growing your primroses as perennials or annuals, the care is the same. Locate the flowers where they will receive some indirect sunlight. Dappled shade works well, as does a location where they will receive morning sun followed by afternoon shade.n fact, they often bloom when mornings are still dark and the ground is still frozen. Desirable for their tolerance of cold temperatures and for their bright, cheerful flowers, primroses can be grown as either annuals or perennials.