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World of CitrusWorld of CitrusEustis Limequat
University of California, Riverside — Citrus Variety Collection
https://citrusvariety.ucr.edu/crc3603 (opens in a new tab)
Accessed
The Millennial Gardener · YouTube · 2025-01-13
https://www.youtube.com/watch?v=Gzwh3I3axQ4 (opens in a new tab)
Summary from transcript: A southeastern-coastal North Carolina grower describes a recently planted Eustis Limequat. At 11:53–13:28, he reports two consecutive 19 °F nights with a 60-gallon water barrel and frost cloth, and says the young tree had no observed damage. The fruit is not yet available; later fruit and hardiness expectations are predictions. Native English auto-captions cover 0:00–19:22. Plant age is only a few months; rootstock, exact exposure, temperature instrument, duration below freezing, and damage assessment method are unstated. This is a protected single-plant observation, not an unprotected cultivar threshold.
Accessed
Florida Fruit Geek · Florida Fruit Geek · 2017-12-07
Summary from article: Florida Fruit Geek gives a general limequat history, saying Swingle hand-pollinated Key lime flowers with kumquat pollen in 1909 and released three named varieties, Eustis, Lakeland, and Tavares, in 1913. This is a group-level later account, not independent evidence for Eustis accession parentage or Eustis-specific fruit traits; the article's 1913 date requires reconciliation with the earlier 1923 primary history. The page also displays December 4, 2019; the captured page does not identify that date as an update date. Separate page comments contain Eustis grower reports credited to Michael Parrish (2019) and Todd Holmes (2023), not the article author's own observations. Lakeland tasting and yield anecdotes elsewhere in the article do not apply to Eustis.
Accessed
u/Seedybees · Reddit · 2024-04-02
https://www.reddit.com/r/Citrus/comments/1bu2tzr/comment/kxr9dz7/ (opens in a new tab)
Summary from comment: The commenter describes their own fairly mature potted Eustis Limequat, reporting two crops per year (possibly three with extra care), about 20 fruits per crop, treating the fruit as single-serving limes, and saving the skins in sugar for baking. This is one grower's self-report, not controlled yield data. “Yours looks a bit young” refers to the original poster's Lakeland plant, not the commenter's Eustis. No direct ripe-fruit taste description is given.
Accessed
Walter T. Swingle; T. Ralph Robinson · Journal of Agricultural Research · 1923
https://archive.org/details/in.ernet.dli.2015.44867/page/n9/mode/1up (opens in a new tab)
Primary account, Journal of Agricultural Research 23(4), pp. 229–238. Swingle and Robinson report the lime–kumquat crosses were made in the Eustis grove in June 1909 and that CPB 48798 fruited in the USDA greenhouse in summer 1918 (p. 236). On p. 237 they propose the name “Eustis limequat” because the original cross was made at Eustis and give a technical description. This is the 1923 naming proposal, not evidence for a 1913 naming event. The fruit-flavor wording is the authors’ historical characterization, not a standardized taste score. Article locators: printed pp. 236–237; the supplied Archive URL opens BookReader page n9 (printed p. 237).
Accessed
Walter T. Swingle; T. Ralph Robinson; E. M. Savage · U.S. Department of Agriculture · 1931-08
USDA Circular No. 181, August 1931, printed pp. 12–13 (PDF pp. 32–33). The limequat section gives a later class-level account of lime × kumquat hybrids and says Eustis had been propagated for Florida and Gulf-state home gardens. It attributes lime-withertip immunity to the kumquat pollen parent and reports that the severe 1924 freeze practically killed limequat plantings in northern Florida and Gulf states. These are historical author claims and recommendations, not modern controlled disease-resistance or cold-threshold evidence.
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