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World of CitrusWorld of CitrusEremorange
Todolí Citrus Fundació
The collection page identifies accession TCF-315 as Glaucous Orange - Eremorange and describes it as a natural Citrus glauca × sweet orange hybrid selected in Australia. It describes a vigorous, upright, productive tree with lanceolate, pale-green olive-like leaves; small spherical orange-yellow fruit with thin, smooth, aromatic, slightly bitter skin; granular juicy pulp of small yellow vesicles, described as semi-sweet and aromatic and sometimes seeded. The page reports early ripening, brief post-maturity holding, and uses including jam, juice, and preserved whole fruit. This is a collection-level account, not a measured sample or taste test.
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Nathalie Guellier · Binette & Jardin / Ouest-France
https://binette-et-jardin.ouest-france.fr/dossier-4812-eremorange.html (opens in a new tab)
Gardening article describes Eremorange as a natural Citrus glauca × Citrus sinensis hybrid and gives −15°C as a general hardiness claim without a documented specimen, exposure, duration, or measurement. It describes a dense small bush with thorny branches and narrow aromatic leaves; rounded miniature orange fruit about 2 cm across with aromatic peel and orange vesicles; and September–October maturity. Growing and culinary advice is general. The article says no specific cultivars are known to date; this differs in scope from grower discussion of named selections. Page updated 2024-01-12.
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eddy67 (initial post) · Agrumes-Passion · 2009-01-25
https://www.agrumes-passion.com/viewtopic.php?t=754 (opens in a new tab)
Two-page grower discussion. The initial poster asks about a two-year-old plant; alias gives unverified hardiness estimates and says tender shoots may burn around −6°C, while reporting no fruit seen on their approximately 1.5 m tree at that time. In a separate 2017 report, agrugillous describes an in-ground Eremorange grafted on Poncirus that retained its leaves through an unspecified winter frost while nearby Yuzu and Satsuma were damaged; no minimum or duration is given. Page 2 contains later discussion of uncertain labels (including Sundance), potted-plant observations and speculative humidity/protection advice. Keep those claims attributed; this thread does not establish a general hardiness threshold or selection identity.
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pat05 (initial post) · Agrumes-Passion · 2020-09-27
https://www.agrumes-passion.com/viewtopic.php?t=6663 (opens in a new tab)
Grower thread distinguishes several reports. pat05 says they found about ten small fruits under dense foliage and tasted one as strongly acidic “for now,” leaving the rest to ripen; on 4 October 2020 they described the tree as about 1.6 m tall. The acidity comment refers to an early, not-yet-ripe fruit and is not a mature-fruit score. Alias later says fruit drops quickly. In February 2021, platane reports tasting jam made by a producer and relays the producer’s description of separate four-year-old Citrumelo-grafted trees over 2 m and wide, with vigor attributed by that grower to the rootstock. These are distinct observations, not one measured specimen profile.
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The Mulberries
https://www.youtube.com/watch?v=a85c--Jfo4I (opens in a new tab)
Summary from transcript: English auto-generated captions, 0:01–9:35 of 9:37. The grower describes one small, unprotected North Carolina Eremorange and reports it passed through nights around 14–15°F with slight leaf burn and tip dieback on one new-growth branch. The grower questions a seller’s claim of tolerance to 10°F or lower. This is one site-specific account, not a universal minimum; the transcript gives no controlled exposure duration or independent temperature measurement.
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The Mulberries
https://www.youtube.com/watch?v=LNQXGLZ_bVg (opens in a new tab)
Summary from transcript: English auto-generated captions, 0:01–18:05 of 18:07. For Eremorange, the grower reports an outdoor North Carolina tree with slight twig sunburn but no twig dieback; no exact cold minimum or exposure date is given. The video also describes narrow leaves, thorns and branches, and a trifoliate rootstock in sandy loam; drought tolerance is anticipated rather than tested. A separate vigorous greenhouse water sprout is shown at 8:58–11:12. These observations do not establish a general hardiness limit or measured drought tolerance.
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Le Pepin Breizh
https://www.youtube.com/watch?v=MG_kCARFW7M (opens in a new tab)
Summary from transcript: English captions, caption designation authored or unspecified; 0:02–0:29 of a 0:33 video. The speaker says this Eremorange was covered in ice after temperatures around −4 to −5°C and shows frozen leaves and branches, but waits to see the outcome. No subsequent damage or recovery result is reported, and no fruit is shown. This is an incomplete first-winter observation, not a hardiness threshold.
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Citrus Growers Forum
This citation is based on an excerpt supplied by the user; the exact forum posts and the linked French nursery page were not independently retrieved. The supplied translation attributes the Feb. 3, 2024 post introducing the nursery listing to jibro. In the quoted nursery account, Eremorange is described as having endured −14°C and five days without thaw, while the nursery says it had not tested the plant’s hardiness limit. A separate, unattributed first-person excerpt reports an unprotected Eremorange with mostly brown leaves after ten days of continuous frost to −11.2°C, contrasting it with an unheated greenhouse specimen that had no damage after separate −9.1°C and −9.8°C minima. These are distinct reports with unspecified accessions, locations and measurement methods, not a verified universal threshold.
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Skandiberg · Tropical Fruit Forum · 2026-09-23
https://www.tropicalfruitforum.com/index.php?topic=60062.msg589882#msg589882 (opens in a new tab)
The poster reports three seeds among five Eremorange fruits and two refractometer readings from separate fruit: 12.5 °Bx for an orange fruit and 18 °Bx for a green fruit. The higher reading was not described as sweeter; no taste score is inferred.
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Skandiberg · Tropical Fruit Forum · Cold Hardy Citrus · 2026-07-12
https://www.tropicalfruitforum.com/index.php?msg=585674 (opens in a new tab)
Post #147 describes a fresh Eremorange graft and two weeks of growth, which the poster calls vigorous. No shoot length, graft combination, site or repeat measurements are reported. This is a brief observation on one graft.
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Guohong Albert Wu et al. · Nature · 2018-02-07
https://doi.org/10.1038/nature25447 (opens in a new tab)
Study-name finding: Wu et al. report Eremorange as a Sweet Orange × Eremocitrus glauca hybrid, and Figure 3 identifies sweet orange as the male parent. This supports a taxon-level candidate with Eremocitrus glauca on the maternal side and Sweet Orange pollen, not a named parent clone. The supplementary accession table was unavailable, so exact accession-to-catalog-clone identity is unverified.
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