Thanksgiving weekend is often the time that people go to get a Christmas tree for their home. Iowa Secretary of Agriculture Bill Northey encourages Iowans to consider getting an Iowa grown Christmas tree for their home. Paul Vander Streek a local Christmas tree supplier tells KNIAKRLS that buying a Christmas tree is a family tradition for many local families, and has been for generations. Vander Streek Acres opens this Friday, call for hours. Approximately 40,000 Christmas trees are harvested every year in Iowa.