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World of CitrusWorld of CitrusSudachi
University of California, Riverside — Citrus Variety Collection
https://citrusvariety.ucr.edu/crc3471 (opens in a new tab)
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SoCal2warm · Tropical Fruit Forum · Cold Hardy Citrus · July 20th, 2022
https://www.tropicalfruitforum.com/index.php?topic=48241.msg466649#msg466649 (opens in a new tab)
First-hand forum account, paraphrased; not an independently verified trial.
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jim VH · Tropical Fruit Forum · Cold Hardy Citrus · July 21st, 2022
https://www.tropicalfruitforum.com/index.php?topic=48241.msg466702#msg466702 (opens in a new tab)
First-hand forum account, paraphrased; not an independently verified trial.
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jim VH · Tropical Fruit Forum · Cold Hardy Citrus · July 19th, 2022
https://www.tropicalfruitforum.com/index.php?topic=48241.msg466509#msg466509 (opens in a new tab)
First-hand forum account, paraphrased; not an independently verified trial.
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Tokurou Shimizu et al. · PLOS ONE · 2016-11-30
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0166969 (opens in a new tab)
Open-access DNA-marker study (CC BY 4.0). Apply only to the study accessions and preserve the authors’ stated identity and parentage limits; it does not by itself establish the identity of every catalog tree or clone bearing a matching cultivar name.
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The Mulberries · YouTube · 2026-08-30
https://www.youtube.com/watch?v=X5yaKeSA7Gk (opens in a new tab)
Summary from transcript: English automatic captions reviewed 0:01–37:38 of 37:40. Informal late-August/early-September North Carolina comparison; captions are source evidence, not an independent visual measurement check.
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Tom McClendon · YouTube
https://www.youtube.com/watch?v=WW0FP0PlAyQ (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed for this 10:11 video. At 7:55–9:35, Tom McClendon identifies and describes a separate Sudachi fruit, including approximate size, aroma, and direct tasting. No growing location, rootstock, sample harvest date, or cold-exposure context is stated for this Sudachi sample.
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Virginia Fruit Grower · YouTube
https://www.youtube.com/watch?v=xkmAfuvdI1c (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed for this 38:11 video. At 1:21–1:38 and 4:10–5:39, the presenter identifies Sudachi, describes its customary green harvest/use, then opens and tastes a separate fruit. No specific location, rootstock, or calendar harvest date is stated for the Sudachi sample.
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Elizabeth Andoh · A Taste of Culture · 2021-09-24
https://tasteofculture.com/2021/09/24/sudachi-kabosu/ (opens in a new tab)
The article’s separate SUDACHI section gives a general culinary description, approximate fruit size, subjective flavor comparison, and uses for juice and edible peel/zest; it does not report a measured cultivar trial or named specimen.
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The Mulberries · YouTube
https://www.youtube.com/watch?v=yF7IHa6qZR0 (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:01–22:53 of 22:56. At 21:24–21:39 the presenter says his Sudachi in a three-gallon pot “exploded with fruit” and had tried to fruit heavily even as small grafts. This is a qualitative grower report; no fruit count, harvest date, rootstock, or location is given. This citation is for the Sudachi plant account; the video’s separate Kabosu tasting is not transferred.
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Weird Explorer · YouTube
https://www.youtube.com/watch?v=ITDQEUPQ0Rg (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:01–7:55 of 8:02. At 4:47–7:09 the presenter separately tastes a Sudachi sample, describing it as very sour relative to his “10 is a lemon” scale (about 11), grassy/herbal, slightly bitter with a fresh black-pepper note, and almost not sweet (about 1/10). These are the presenter’s subjective ratings, not instrument measurements. The video gives no sample origin, tree, rootstock, or tasting date. This citation is for the Sudachi sample; Kabosu claims remain separate.
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Gregn; Millet; Laaz · UBC Botanical Garden Forums · 2008-03-23
https://forums.botanicalgarden.ubc.ca/threads/sudachi-japanese-citrus.36766/ (opens in a new tab)
Thread started by Gregn on 2008-03-23. Sudachi posts include Laaz #6 (2008-04-03) on green-harvest timing and approximate size, Millet #2 (2008-03-24) on his very seedy, not-very-juicy fruit and suggested uses, and Gregn #8 (2008-09-29, North Vancouver) on a small plant’s first fruit, which he describes as key-lime-sized with two seeds and an excellent lime substitute. These are separate grower accounts; the thread’s cold-hardiness estimates do not document a measured exposure.
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The Mulberries · YouTube
https://www.youtube.com/watch?v=HhKjEgCSZqE (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:01–26:04 of the 26:05 video. At 4:41–6:23 the presenter describes three fruits from a young plant believed to be in a three-gallon pot entering its second year, reports weights of 71.5 g, 48.9 g, and 58.4 g, and estimates a batch average near 60 g; the spoken readings were not visually verified. He comments on peelability, juiciness, seediness, and tart-mandarin flavor. At 19:57–20:20 and 22:03–23:15 he reports Brix 10 and pH 3.2 after juicing fruit; the aliquots and exact pooled-fruit basis are unclear, so these are source-reported readings, not individual-fruit measurements. Personal scorecard ratings are not standardized taste-intensity values.
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Bob Duncan · YouTube — Fruit Trees and More
https://www.youtube.com/watch?v=n5nbeHPjj2w (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:00–8:43 of the 8:43 video. Bob Duncan describes Sudachi beside Yuzu in Fruit Trees and More’s southeast Vancouver Island demonstration orchard, where he says the trees crop and fruit ripens reliably. He describes orange-ripe fruit as sour-mandarin-like, says local Sudachi often sets nearly seedless fruit, and notes oversetting that could benefit from thinning. No precise yield, rootstock, tree age, or harvest year is given. His generalized hardiness estimate is not a recorded minimum exposure for the Sudachi tree.
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Fig Boss (Ross Raddi) · YouTube
https://www.youtube.com/watch?v=Gakypf9Wu3U (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:00–5:54 of the 5:57 video. Ross Raddi describes a newly planted Sudachi in the Philadelphia area as part of a cold-climate experiment with no winter outcome yet; he estimates a prior crop of close to 50 fruits on a small Sudachi in a three- to five-gallon container. Continuity between that prior container plant and the newly planted specimen is not established. The video contains no fresh tasting and no measured Sudachi hardiness event; hardiness figures are hearsay or refer to Yuzu, and proposed protection is not a completed trial.
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Skandiberg · Tropical Fruit Forum · 2025-11-19
https://www.tropicalfruitforum.com/index.php?topic=60062.msg570919#msg570919 (opens in a new tab)
In a post about fruit from a received shipment, Skandiberg reports Sudachi at Brix 8 with four seeds and describes an exotic lemon-like flavor and juicy flesh. The author says the fruit might be somewhat overripe. The post says none of the fruit was from the author’s own trees; orchard provenance and sample count are unstated.
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The Mulberries · YouTube · 2026-07-31
https://www.youtube.com/watch?v=Wk-Isi3B-mg (opens in a new tab)
Summary from transcript: The Mulberries describes one Sudachi in an unheated greenhouse that produced another heavy crop after cropping heavily the prior year (29:51–30:27). The speaker calls it precocious/productive but gives no fruit count, fruit tasting, rootstock or outdoor hardiness test. Earlier in the video, a separate ground-planted Sudachi in a poor site is contrasted with a successful greenhouse specimen; the presenter relays near-Yuzu hardiness only as reports (17:53–18:38). These remain grower-reported plant contexts, not a hardiness threshold.
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Dennis Peck · The Oregonian/OregonLive · 2022-01-13
The article’s “ONE GREEN WORLD FAVORITES” block says descriptions are from OneGreenWorld.com. Its Sudachi ichandrin profile describes juice use in Japanese cuisine, golf-ball-sized fruit often picked green, and claims ancestry from yuzu, a Japanese semi-sour satsuma and tachibana orange. This is nursery copy; it does not identify an accession or substantiate parentage.
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admin · Citrusy.info · February 13, 2024
https://citrusy.info/test-mrazuodolnych-citrusu-zima-2022/ (opens in a new tab)
The Czech original's Sudachi section describes a USA-seed-origin plant growing slowly and bushily on its own roots and more vigorously on trifoliate, not yet flowering. The article separately says the newly introduced Sudachi and Eremorange plants were grafted on small trifoliate for the greenhouse trial. On 20 March 2023, the author reports the Sudachi had only minor leaf drop and otherwise overwintered without damage in the unheated greenhouse. The text does not explicitly reconcile whether the growth comparison and greenhouse specimen are the same propagation. No accession, age, or exact plant-level exposure temperature is given; this is not an outdoor cold-hardiness result. The English page is a translation of the same experiment.
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Prita Sari Dewi; Akira Wakana; Yuu Tanimoto; Yumiko Fujiwara; Kaori Sakai; Kohei Kajiwara · Journal of the Japanese Society for Horticultural Science 82(3):203–214 · 2013
https://www.jstage.jst.go.jp/article/jjshs1/82/3/82_203/_html/-char/en (opens in a new tab)
Primary cultivar-specific experimental evidence. Table 1 classifies embryo number and male fertility; embryo means were measured under a stereoscopic microscope in twenty seeds per cultivar, except Foster Pink and Marsh whose embryo count was not examined. Table 2 reports selected zygotic progeny from controlled crosses; it is not a percentage of all seeds that are zygotic. Material grown at Sasaguri Orchard, Kyushu University Farm, Fukuoka, Japan. Preserve the difference between parent fertility and male fertility segregating among offspring. DOI:10.2503/jjshs1.82.203. Source captured in docs/research/breeding-keywords-2026-10-10/dewi-2013.html.
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