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Recorded contributions to citrus breeding, introduction, and history.
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World of CitrusWorld of CitrusRecorded contributions to citrus breeding, introduction, and history.
2 credits across 2 varieties · Stan McKenzie
Received the selection from Bernhard Voss, propagated it at McKenzie Farms, evaluated it under South Carolina conditions, and distributed it in the United States as Carolina Lime.
Accounts describe an unidentified citrus selection at McKenzie Farms in Scranton, South Carolina that reached Stan McKenzie as budwood from Germany. In a later forum post, mikkel reports that German grower Bernhard Voss said he did not know the original seed source. Tom McClendon has suggested a Clementine, trifoliate, Clementine F2 lineage, but identifies it as a guess. These are attributed accounts; the original parentage remains undocumented.
Scranton, South Carolina, United States
Stan McKenzie is credited in the existing owner account with the modern use of the Ten Degree Tangerine name for ClemYuz 2-2. The 2023 tour supports the current 2-2 label, while Nagle documented the name for Clem-Yuz 3-3 in 1993; this credit does not establish first coining or a transfer path.
McKenzie Farms & Nursery’s 2023 tour labels its tree “10° Tangerine Clem Yuzu 22” (read in this catalog as ClemYuz 2-2) and reports survival at 8°F in 2018 with damage. Nagle’s 1993 article and the Ichang handout had already identified ClemYuz 3-3 as Ten-Degree Tangerine; the 2014 Hardy Citrus post records confusion over whether the name also refers to 2-2. The date and path by which the name came to be used for 2-2 remain unknown.
South Carolina, United States
Sources: [1][7][11][12][15]
The updated event is supported as a record of modern 2-2 label use, historical published use for ClemYuz 3-3 by 1993, and the naming ambiguity documented in 2014. The preserved Tough Citrus history-source note still records the earlier owner-confirmed claim that Stan McKenzie named the fruit after a 10°F freeze. The exposed catalog tools do not provide an operation to revise that source-note row; the old note is therefore retained but needs review against the earlier Nagle and Ichang publications. The current event and revised credit no longer claim first coining or a documented name-transfer path.