Although they don't have their list of plants yet, check their website for a list of plants that they had available at the Spring Plant Sale from last year. When I say 'list', it's more of a spreadsheet. I lost count but it's approximately 30 pages long.
This 'list' is a great resource. Plants are listed by category:
Cactus and Woody Lilies
Perennials & Wildflowers
Shrubs and Small Trees
Common Name, Botanic Name, Height, Sun Requirement, Plant Type (evergreen, etc.), and if it's a Host and/or Nectar Source for Named Butterflies. They also try to denote plants that tolerate shade.
So even if you're not shopping at this sale, the spreadsheet is very handy dandy resource.