The catalog is printed every year in late winter. When the 2017 catalog was printed, we had enough glade coneflower seed in stock to offer it in the catalog. We have since sold out, and this year's harvest did not yield enough to allow for any seed sales. The website indicates our current availability and has a more accurate inventory than the catalog. A "quicklink" on the homepage called "Current Inventory" will show everything in stock right now: http://mowildflowers.net/assets/images/Misc%20plant%20information/WEB%20SPREAD.xlsx