WARF: P120284US01

Cranberry Variety Named “Ruby Star” with Consistent High Yield


Eric Zeldin

The Wisconsin Alumni Research Foundation (WARF) is seeking commercial partners interested in a new cranberry variety with very strong yearly growth, strong bud sets and consistently high fruit yields.
OVERVIEWCranberries are Wisconsin’s number one fruit crop, grown on 21,000 acres across 20 counties. Wisconsin provides nearly 60 percent of the U.S. supply, and significant growth in demand is expected to continue.
THE INVENTIONA UW–Madison researcher has developed a new variety of cranberry known as “Ruby Star.” Ruby Star resulted from a cross between the “HyRed” cranberry (“Stevens” x “Ben Lear #8”) and the “Bergman” cranberry (“Early Black” x “Searles”).

Growers interested in this cranberry variety should license the variety from WARF and obtain vines from one of the approved propagators listed below. The license between WARF and the grower must be in place before vines can be obtained.
  • Cranberry Creek Cranberries Inc.
  • Dempze Cranberry Co.
    • Cranberry production
      • Very strong yearly growth
      • Strong bud sets
      • Consistently high fruit yields
        Contact Information
        For current licensing status, please contact Emily Bauer at or 608-960-9842.
        The WARF Advantage

        Since its founding in 1925 as the patenting and licensing organization for the University of Wisconsin-Madison, WARF has been working with business and industry to transform university research into products that benefit society. WARF intellectual property managers and licensing staff members are leaders in the field of university-based technology transfer. They are familiar with the intricacies of patenting, have worked with researchers in relevant disciplines, understand industries and markets, and have negotiated innovative licensing strategies to meet the individual needs of business clients.