There seems to be a flurry of them this time of year, and the Ohio River valley region has them busting out all over.
Yew Dell Gardens Annual Plant Sale, Crestwood KY Saturday April 30
http://0101.nccdn.net/1_5/236/070/25c/20160407Plant_Sale_List_For_Web.pdf
Sorry - can't seem to make that one a clickable link. Someone else might have more luck. There's fourteen pages of great plants there.
Rowe Arboretum Annual Plant Sale, Cincinnati OH Saturday April 30 9 am - noon
Harvest Thyme Vendors Sale, 7415 State Road, Cincinnati OH Saturday April 30 10 am - 4 pm
Cincinnati Civic Garden Center Plant Sale Cincinnati OH May 6-8
Boone County Arboretum Annual Plant Sale, Burlington KY Saturday May 14: 9 am-3 pm
Anyone looking for a Plant Sale?
Ah! Thank you. This should be useful as I'm working on establishing my garden.