Krissy Boys’ PowerPoint should be able to be accessed below. I tried a test program and was able to get it.  Use your mouse to click the right arrow or use the right arrow on your computer to move to the next slide.  Be patient, if something seems blank, click again.

I am also attaching information from Jim Engle, White Oak Nursery and Janice Wiles, Go Natives! Perennials. The fourth presenter was Dan Segal, The Plantsmen Nursery (I did not get a business card from him.)