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World of CitrusWorld of CitrusIchang Lemon
SoCal2warm · Tropical Fruit Forum · Cold Hardy Citrus · September 5th, 2024
https://www.tropicalfruitforum.com/index.php?topic=56301.msg533972#msg533972 (opens in a new tab)
First-hand forum account, paraphrased; not an independently verified trial.
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Ilya11 · Tropical Fruit Forum · Cold Hardy Citrus · February 19th, 2016
https://www.tropicalfruitforum.com/index.php?topic=19167.msg239183#msg239183 (opens in a new tab)
First-hand forum account, paraphrased; not an independently verified trial.
Accessed
The Mulberries · YouTube
https://www.youtube.com/watch?v=Wk-Isi3B-mg (opens in a new tab)
Summary from transcript: The Mulberries tours Ichang papeda, Yuzu and related hybrids in Central North Carolina, Zone 8a. The grower compares vigor, foliage, winter damage and recovery, and discusses selecting seedlings for hardiness and fruit potential. Yuzu produces off-types across seed batches; Ten Degree Tangerine produces a small proportion of visibly different seedlings, including presumed trifoliate hybrids; Ichang Lemon also produces zygotic seedlings at a low, unquantified rate. Recent Yuzu × trifoliate and Ichang Lemon × Thomasville pollinations have set fruit, with hybrid offspring still anticipated. Reported seedling variation is based on grower observations rather than genetic testing.
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The Mulberries · YouTube · 2024-12-07
https://www.youtube.com/watch?v=CCnLabiS4MU (opens in a new tab)
Summary from transcript: Older Ichang Lemon stems appeared unfazed while flexible newer shoots were damaged in the field (14:34–15:08).
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The Mulberries · YouTube · 2026-05-14
https://www.youtube.com/watch?v=3BPp5SNEsmU (opens in a new tab)
Summary from transcript: The speaker says small outdoor Ichang Lemon specimens failed; greenhouse collection and pollination context are described separately (24:57–26:15).
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The Mulberries · YouTube · 2026-06-01
https://www.youtube.com/watch?v=pyh_HQv_bEg (opens in a new tab)
Summary from transcript: One Ichang Lemon fruit remained after Thomasville pollen was applied; no hybrid offspring or parentage is confirmed (29:38–30:15).
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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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Tom McClendon · YouTube · 2026-05-03
https://www.youtube.com/watch?v=PKHh1ODKfhI (opens in a new tab)
Summary from transcript: English automatic captions reviewed 0:02–22:54 of 22:56. Greene County, Georgia exposed orchard context is distinguished from the presenter’s protected sites; raw timestamped capture is retained in the Thomasville citrangequat research archive.
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Laaz · Citrus Growers Forum · 2009-06-14
http://citrusgrowersstatic.chez.com/web/viewtopice644.php (opens in a new tab)
Laaz’s June 14, 2009 reply ranks Ichang, Meyer, and Harvey from hardiest to least hardy. No specimens, temperatures, trial method, or exposure conditions are given; this is a qualitative forum opinion only.
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TD Homestead · YouTube
https://www.youtube.com/watch?v=f_QeuswnZiA (opens in a new tab)
Summary from transcript: English auto-captions reviewed 0:08–10:33; exact publication date was not verified. The speaker says Plant Delights supplied the Ichang Lemon fruit; this does not identify the fruit tree’s site. Ichang Lemon is tasted separately at 6:32–10:04.
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Virginia Fruit Grower · YouTube
https://www.youtube.com/watch?v=6xGy_v0tI5g (opens in a new tab)
Summary from transcript: English auto-captions reviewed 0:08–3:21; exact publication date was not verified. At 1:51–2:33 the speaker describes flowers on his Ichang Lemon tree, says most had dropped, and notes it had been years since he last got fruit from that tree. Individual plant observation; no location or dated growing season is established.
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Givaudan Citrus Variety Collection at UCR
https://citrusvariety.ucr.edu/crc1215 (opens in a new tab)
UCR CVC accession page: Ichang lemon (Citrus wilsonii Tanaka), CRC 1215 / PI 45534. Received as seed from Frank N. Meyer, FHB #23067, China, May 1919; current accession parentage/origins are listed as unknown. Historical notes attribute the Hsiang yuan description to Meyer and relay The Citrus Industry, vol. I, pp. 390–392, as a tentative Citrus ichangensis × Citrus grandis hybrid hypothesis (question-marked). UCR says CRC 1215 and CRC 1219 are very similar, probably identical (11/23/88 note). Accession-specific evidence; it does not prove all Ichang Lemon plants share CRC 1215 or resolve general cultivar parentage.
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Hardy Citrus · 2013-12-23
https://hardycitrus.blogspot.com/2013/12/ichang-lemon.html (opens in a new tab)
Secondary blog post dated 2013-12-23. It compiles a parentage/name claim and general fruit description/use, while citing conflicting cold-hardiness claims from other sources rather than reporting a controlled trial. Dated comments contain separate, commenter-attributed tree observations and must not be merged into one specimen or treated as a general cultivar threshold.
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Citrus Growers Forum (ProBoards)
https://citrusgrowersv2.proboards.com/thread/440/ichang-lemon (opens in a new tab)
This source record is based on user-supplied excerpts; the full thread could not be retrieved for independent verification. The excerpts distinguish a B. Voss Ichang clone grafted onto Poncirus in 2002 (reported survival at −8°C and death at −10°C) from a separate seedling selected from the 2003 crop. The original clone is reportedly about 40 seeds per fruit; the excerpt does not establish that count for the selected seedling’s fruit. The seedling reportedly first fruited at 16 years in southern France zone 9b; acidic juice and bitter albedo refer to that seedling. The excerpts separately describe Baches’ Shangyuan clone (reported death at −9°C) and Roberto’s material: an initial CRC 139 label corrected on December 6, 2021 to CPB 139, received from Petr Broza via Eisenhut and described as not very hardy at about −8°C; Ichang 153 is separately identified as Roberto’s best-tasting selection. The supplied post dates are January 4, 2020 (Ilya), April 6, 2020 (Roberto), and December 6, 2021 (correction). Keep each clone/seedling distinct; locators and observations are not independently verified.
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SoCal2warm · UBC Botanical Garden Forums · 2025-04-23
First-hand report of one named Ichang lemon outdoors in a sheltered, wind-protected Olympia site; author describes winter exposure and cautions against generalizing its hardiness.
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Content-Soil9815 · Reddit · r/Citrus
First-hand post about one newly planted ornamental specimen; its prior winter was spent in a pot. Comments discuss regional temperatures and separate plants, not this tree’s measured in-ground minimum.
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Benoit Demarcq et al. · Journal of Agricultural and Food Chemistry · 2021-03-05
https://doi.org/10.1021/acs.jafc.0c07894 (opens in a new tab)
Peer-reviewed study of peel volatile compounds and marker-based genetic ancestry for INRAE-CIRAD BRC accession ICVN0100699; genetics are accession-specific hypotheses. Not a juice-acidity or whole-fruit taste study.
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Tough Citrus · YouTube
https://www.youtube.com/watch?v=kYCAqE-NNtI (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:16–9:42 of 9:47. The presenter tastes an Ichang Lemon sample; sample source, tree, date, weight and growing conditions are not identified. Flavor and hardiness claims remain presenter-specific; ancestry is discussed speculatively.
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The Mulberries · YouTube
https://www.youtube.com/watch?v=PcaKsMaXTxE (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:01–26:47 of 26:48. The live description credits Virginia Fruit Grower with supplying the Ichang Lemon and OP Nagami fruit. The Ichang sample is weighed at 330 g; the companion scorecard is a second record of this same tasting, not an independent sample.
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Living Growing Kitchen · YouTube
https://www.youtube.com/watch?v=lxYRRNvG5DI (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:00–0:56 of 0:59. A short taste test of a half-fruit; sample source, weight, date and tree/rootstock conditions are not stated. General hardiness remarks are not tied to a measured event.
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Virginia Fruit Grower · YouTube
https://www.youtube.com/watch?v=PnZATH9Ujq4 (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:02–3:10 of 3:15. The grower shows their Ichang Lemon tree in Virginia Beach, Virginia; says it is grafted on Flying Dragon about 3–3.5 ft above ground; and gives a qualitative fruit taste comparison. No specific freeze event or harvest date is reported.
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Truth Seeker · YouTube
https://www.youtube.com/watch?v=eUCLR_oOHBE (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed 0:02–3:47 of 3:52. The speaker tastes fruit while discussing a separate intended Maryland growing trial; the tasted sample is not identified as Maryland-grown. A second taster gives a separate qualitative impression.
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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 0:01–10:09 of 10:11. Includes the speaker’s long-term Zone 8 Ichang growing report and a taste of standard Ichang Lemon. The speaker explicitly distinguishes it from the irradiated Grand Frost selection; do not transfer observations between them.
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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 0:06–38:01 of 38:11. The grower shows fruit from their own Ichang Lemon tree, mentions substantial previous dieback followed by fruiting again, and tastes fruit they say was picked December 3. The title says winter 2019, but the spoken caption does not tie that December 3 date to a year; tree location/rootstock and precise maturity are not independently established.
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The Mulberries · The Mulberries
https://themulberries.org/wp-content/uploads/2026/01/Ichang-Lemon.png (opens in a new tab)
Summary from card: The printed Ichang Lemon card lists the 330 g fruit tested in the companion PcaKsMaXTxE video. The video and card are one tasting event; the upload path does not verify a publication date.
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Tom McClendon · YouTube
https://www.youtube.com/watch?v=0U4cYw7wbp4 (opens in a new tab)
Summary from transcript: Tom McClendon reports on his seed-grown Ichang Lemon tree, about 25 years old, in the Green County orchard mentioned in the video. It had been hurt by cold a couple of years earlier and did not fruit the previous year; he expected many flowers that year. He describes later bloom than trifoliate hybrids and flowers mostly inside the canopy. State, rootstock, exact observation year and cold temperatures are not provided.
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