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World of CitrusWorld of CitrusDunstan Citrumelo
SoCal2warm · Tropical Fruit Forum · Cold Hardy Citrus · April 28th, 2022
https://www.tropicalfruitforum.com/index.php?topic=43392.msg458879#msg458879 (opens in a new tab)
First-hand forum account, paraphrased; not an independently verified trial.
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The Mulberries · YouTube · 2026-03-02
https://www.youtube.com/watch?v=qkMk7xPCGeU (opens in a new tab)
Summary from transcript: Dunstan Citrumelo did well at the speaker's site; he also relays survival of a relatively young New Jersey graft at 0°F without claiming a lowest limit (8:02–8:32).
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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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The Mulberries · YouTube · 2023-11-21
https://www.youtube.com/watch?v=sWMmj09REC4 (opens in a new tab)
Summary from transcript: In a Stan McKenzie shipment tasting, the presenter and spouse describe the title-listed Dunstan Citrumelo fruit as a very seedy, juicy, less-bitter grapefruit-like fruit; they compare fresh fruit and equally diluted juice. Auto-generated captions retain cultivar-name uncertainty.
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Ilya · Citrus Growers v2
https://citrusgrowersv2.proboards.com/thread/633/dunstan (opens in a new tab)
Owner-supplied excerpt only; the direct thread was not read. No post date, location, or post anchor was provided. The excerpt supports the attributed report that fruit is usually fully yellow by the end of November, not internal maturity.
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Home Citrus Growers · Page created 14 November 2010
https://www.homecitrusgrowers.co.uk/citrumelos/citrumelonottingham.html (opens in a new tab)
The page recounts a Nottingham tree and a reported nursery provenance chain involving U.S.-sent seed, Zehnder, and a later name communicated as “Dunstan.” It does not identify the parent cultivar or prove that the tree is the same accession as this catalog record.
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ilya11 · Agrumes-Passion · 7 December 2019
https://www.agrumes-passion.com/viewtopic.php?t=6422 (opens in a new tab)
The accessible first page covers posts 1–25 of a 31-post thread; page 2 was unavailable. Ilya describes his plant as a seedling raised by Andy Voss from U.S. seed, received as a small cutting from Mr Gunderson in Denmark in 2012 and planted in 2013. This propagation history does not establish that the tested plant is the original selection or link it to the Nottingham seedling.
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Tough Citrus · YouTube
https://www.youtube.com/watch?v=BSlOpazl-dw (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed at 0:00–8:49; exact publication date is unverified. At 1:24–1:52, the speaker gives an uncertain oral account of material from Stan McKenzie and Dr. A. J. Bullard, and tentatively mentions seed origin; this is not verified pedigree. At 8:00–8:18, he describes the fruit as grapefruit-like with not much bitterness. The title calls it a grapefruit × trifoliate hybrid but does not establish a specific documented cross.
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Tom McClendon (@CitrusPalmsWithTom) · YouTube
https://www.youtube.com/shorts/ed74F0D6Sag (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed at 0:01–1:44; exact publication date is unverified. The Short reports near-total leaf loss around “10 degrees,” followed by no permanent injury and renewed flowering/fruiting; the speaker’s coldest experienced exposure was around “10 degrees.” Fahrenheit is inferred from the U.S. growing context, not explicitly named in the captions. The page displays a Greene County, Georgia location tag; no exact exposure date is provided.
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The Mulberries · YouTube
https://www.youtube.com/watch?v=fznEpaSikKk (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed at 0:01–30:55; exact publication date is unverified. The video starts with atypically small locally dropped fruit and mentions a planned later review of Stan-supplied fruit; the relationship between the initial and later tasting samples is not fully established. Its final chart at 29:40–29:46 reports a 350 g fruit, pH 3.0, 7–9 °Bx, moderate seediness, very juicy flesh, and descriptive taste and aroma ratings. These are the reviewer’s source-specific results; the archived scorecard is not treated as independent corroboration.
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Sweet Home Alabama Homestead · YouTube
https://www.youtube.com/watch?v=JHuJEil8JVo (opens in a new tab)
Summary from transcript: English auto-generated captions reviewed at 0:01–8:16; exact publication date is unverified. The reviewer says the fruit came from another grower and mentions Stan, but does not clearly establish that Stan supplied this sample. The video reports Dunstan fruit as juicy and fairly seedy, with grapefruit/lemon flavor and little trifoliate odor; it also compares Monticello, a separate variety. The reviewer’s USDA zone 7 and protection comments concern their own growing location, not a cold trial of this fruit.
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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-generated captions reviewed at 0:08–10:33; exact publication date is unverified. The speaker says Plant Delights supplied a couple of Dunstan fruits during a visit to the nursery and nearby J. C. Raulston Arboretum. He describes one damaged but firm fruit as grapefruit-like inside, piney in aroma, with an estimate of at least 50 seeds; later he reports low sweetness and says it “ain’t super sour either,” followed by a pine-needle aftertaste. The unrelated tree-size comment is secondhand, not a measurement of the sampled fruit tree.
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clarkinks · Growing Fruit · 31 August 2026
https://growingfruit.org/t/dallas-dunstan-citrumelos-from-woodlanders/81851 (opens in a new tab)
clarkinks reports receiving two citrumelo plants from Woodlanders in August 2026; the shipping observations are not a fruiting or cold test. In post 3, the author gives historical claims about Dallas and Dunstan and says Dunstan is believed named after Dr. Robert Dunstan. This is forum hearsay without a cited primary breeding record, and does not establish Dunstan’s parentage or identity with Dallas or Nottingham.
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jsteph00921 · Growing Fruit · 15 September 2023
https://growingfruit.org/t/any-other-citrus-fanatics-here/10933/175 (opens in a new tab)
Post 175 reports the author’s own nearly 3 ft Dunstan grafted on Flying Dragon, which had not bloomed or fruited as of September 2023. Claims about other Dunstan trees overwintering in the Willamette Valley are secondhand and unquantified. The post gives no measured cold exposure or fruit tasting for the author’s own plant.
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clarkinks · Growing Fruit · 21 August 2026
https://growingfruit.org/t/citrumelo/80897 (opens in a new tab)
In post 8, clarkinks reproduces promotional descriptions distinguishing Citrumelo Dallas and Dunstan. The Dunstan copy describes nearly 4-inch golden-yellow fruit with grapefruit-like flavor when sweetened and half-trifoliate parentage. This is copied promotional prose, not a direct grower tasting or documented pedigree; it does not establish Dallas as a Dunstan synonym.
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dd333 and contributors · Tropical Fruit Forum · 24 June 2024–23 September 2024 (thread posts reviewed)
https://www.tropicalfruitforum.com/index.php?topic=55466.0 (opens in a new tab)
The single-page thread and replies 1–17 were reviewed. Dunstan-specific content includes a_Vivaldi’s replies 7, 13, and 17 and Mulberry0126’s reply 9 (27 June 2024). Reply 9 reports a New York zone 7a/7b Dunstan high graft on trifoliate with a winter outdoor low of 16°F, no damage or leaf drop, and a visual estimate of no more than 5–10% apparently zygotic seedlings; this is not a genotyped or measured zygotic rate. It links to video sWMmj09REC4, already separately cited here for tasting; do not duplicate that tasting.
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SoCal2warm · UBC Botanical Garden Forums · 2025-04-23
Same post separately describes a Dunstan Citrumelo at the author's Olympia garden, including its height, winter foliage, and leaf form. One grower specimen; not an independent test.
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themulberries · Growing Fruit forum
https://growingfruit.org/t/swingle-citrumelo-zone-7/81408/10 (opens in a new tab)
In post 10 (displayed as Jul 27), themulberries describes a separate grafted Dunstan citrumelo at a family home in New York, zone 7a/7b and partial sun. The author reports at least three winters without damage, including a reported low of 0°F. Fruit quality varied with heat and rain; the best year was described as good for someone who likes tart fruit. These conditions and observations belong to Dunstan, not Swingle.
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Mulberry0126 · Tropical Fruit Forum · 2024-12-06
https://www.tropicalfruitforum.com/index.php?topic=57257.msg540724#msg540724 (opens in a new tab)
In post 0, Mulberry0126 reports a comparative fruit review: Iva (then called Bishop) measured 12° Brix and Dunstan 7–9° Brix; the author says Alan Bishop brought the fruit for review. The sample date, location, fruit count, and measurement method/instrument are not reported. The Dunstan range overlaps the 7–9 °Bx chart already documented from The Mulberries video in this variety; do not treat the forum statement as independent corroboration or a distinct sample without further evidence.
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Tom McClendon · YouTube
https://www.youtube.com/watch?v=0U4cYw7wbp4 (opens in a new tab)
Summary from transcript: Tom McClendon describes abundant, unusually heavy flowering on his large Dunstan Citrumelo that year and says the blossoms are fragrant. He hopes they will be followed by fruit later in the season. Exact observation year, tree age, site state, rootstock and later fruit set are not established.
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Josue (as supplied by user) · Citrus Growers Forum (ProBoards) · November 12, 2020
https://citrusgrowersv2.proboards.com/thread/674/hardy-citrus-reviews-taste (opens in a new tab)
User-provided excerpt attributed to Josue’s four-taster group report, with fruit obtained from Stan McKenzie the prior week in South Carolina zone 8a. This entry records only the Dunstan portion: the first two fruits were described as grapefruit-like and acceptable for fresh eating if one likes grapefruit; a third was described as strongly Poncirus-like, with maturity offered as a possible reason for the difference. The underlying thread has not been independently retrieved; exact accession, individual fruit maturity, and method are not stated. Four tasters is the number of tasters, not a stated fruit sample count.
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Scipio · YouTube · 2025-02-27
https://www.youtube.com/watch?v=qEVk08JwE9g (opens in a new tab)
Summary from transcript: In a separate Dunstan Citrumelo tasting (13:30–16:19), the narrator reports a 108 g fruit with visible seeds, acidic juice, and resinous peel and albedo. These are narrated observations of the comparator fruit, not US-119; no formal sampling or measurement protocol is stated.
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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. The Dunstan profile describes a poncirus/grapefruit hybrid used as rootstock and grown as a cold-hardy shrub; it says fruit is larger than typical poncirus and perhaps somewhat sweeter, with juice and preserve uses, and advertises reliable hardiness to 10°F or lower once established. These are nursery claims, not specimen measurements or new pedigree evidence.
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