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.
Primrose plants (Primula spp.) grow 6 to 12 inches tall and bloom in the winter or spring. They generally grow in U.S. Department of Agriculture plant hardiness zones 3 to 9, but this varies depending on the species.Florists sell these in bloom, and you may think you should throw the plants out after the blooms fade.rimrose plants (Primula spp.) grow 6 to 12 inches tall and bloom in the winter or spring. They generally grow in U.S. Department of Agriculture plant hardiness zones 3 to 9, but this varies depending on the species. Florists sell these in bloom, and you may think you should throw the plants out after the blooms fade.