Botanists and gardeners had known for centuries that certain flowers open or close at the same time each day. But it was an eighteenth century creationist who put this knowledge to practical use.
Swedish botanist Carl Linnaeus (pronounced lin-NAY-us) made a list of flowers with the times they opened or closed. He made a garden of local flowers which were reliable even on cold and cloudy days. This ‘floral clock’ idea has been used in many botanic gardens since. It is another interesting example of man’s making use of unusual design features in God's creation.