Hardy herbaceous & Alpine plants : wholesale catalog, Spring 1927 - Wayside Gardens Co.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mentor, Ohio, Wayside Gardens Co, 1927, 1927)
https://www.biodiversitylibrary.org/bibliography/139433
Keywords: Alpine garden plants|Bulbs (Plants)|Catalogs|Herbaceous plants|Mentor|Nursery stock|Ohio|Plants; Ornamental|Shrubs|Varieties|