Fukushu Kumquat: History | World of Citrus

1963
Other
UCR reports receiving the CRC 3475 accession as seed from Okitsu, Shizuoka Prefecture, Japan, via W.P. Bitters in 1963. This dates the accession’s receipt, not the cultivar’s origin or introduction.
Sources: ⁠[1]
Date unknown
Other
UCR describes Fukushu/Changshou as considered a chance hybrid between two Fortunella species, with the 1967 The Citrus Industry account attributing this view to Swingle. The cultivar’s actual origin and parents are not established by this account.
Sources: ⁠[1]

Other