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.
Primroses can be cultivated as annuals or perennials. Primroses (Primula spp.) are some of the earliest flowers to bloom. In fact, they often bloom when mornings are still dark and the ground is still frozen.s annuals, they can be grown in USDA zones 1 through 11, according to Washington State University Extension. Primroses are favorite container plants, and the fact that they are also an inexpensive plant makes choosing primroses for container gardens an easy choice for many home gardeners.