A Bed of English Primroses or "Cowslips"
This bed of flowers grew last season beside Mr. Burbank's greenhouse at Santa Rosa. It shows how Mr. Burbank, even when not working for a specific end, delights in getting a number of variations before him. He inspected these flowers daily during their time of blossoming, and made selections among them; and though at the time he had no very specific purpose in so doing, it is more than likely that interesting results will come of the primrose experiments before these flowers are banished to make room for some other claimants of space.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 12 Chapter 5