The Natalie Peters Webster medal is awarded to a GCA club or club member who nurtures and advances the purpose of the GCA through distinguished achievements in horticulture. This award will remain eligible for GCA club members and member clubs.

First awarded in 1980, the Natalie Peters Webster Medal was endowed the same year by the family and friends of Natalie Peters Webster (Mrs. Charles D. Webster: 1909–79), South Side Garden Club of L.I., Zone III, and president of The Garden Club of America (1959–62). Natalie was an eminent horticulturist and, with her husband Charles, she was a 1959 recipient of the GCA Achievement Medal for skill and dedication to the field.