Czar plum

English Noun Czar plum A kind of European plum (Prunus domestica species), an early-season culinary plum with large, dark purple fruits. en 1926 Commonwealth Mycological Institute (Great Britain), Imperial Bureau of Mycology (Great Britain), Imperial Mycological Institute (Great Britain) (contributor) Review of Applied Mycology https://www.google.com/books/edition/Review_of_Applied_Mycology/9LUsAAAAMAAJ?hl=en&gbpv=1&dq=%22Czar+plums%22&pg=PA504&printsec=frontcover 5 504 Of 22 young Czar plums planted in 1920 to replace the silvered trees removed, none has so far died, and only one has shown silvering; this indicates that there is very little danger of the young plums becoming infected from the previous trees, provided the latter are removed and burnt.