Loading variety overview…
World of CitrusWorld of CitrusSweet Frost Tangerine
Bob Westerfield; Jake Price · UGA Cooperative Extension · 2024-10-24
Current revision dated 2024-10-24. The Sweet Frost Changsha entry describes fewer seeds, dark-orange fruit, November maturity, and consistent crops.
Accessed
UGA Research News · 2018-04-25
https://research.uga.edu/news/science-you-can-peel/ (opens in a new tab)
Published 2018-04-25 and updated 2024-07-02. The story identifies UGA citrus scientist Wayne Hanna as the developer and reports a November 2016 Sweet Frost release.
Accessed
Peter Chaires · Growing Produce · 2017-04-15
https://www.growingproduce.com/citrus/georgia-citrus-seeking-to-make-its-mark/ (opens in a new tab)
Reports Sweet Frost from irradiated Changsha, 2–3 seeds, 11–12 °Brix, easy peeling, and November–December maturity in Georgia. Its approximately 1985 cold report is about the non-irradiated parent trees, not Sweet Frost; do not attribute that cold event to this selection.
Accessed
Tom McClendon (Citrus Palms With Tom) · YouTube
https://www.youtube.com/watch?v=RXVmkAjtoTc (opens in a new tab)
Summary from transcript: The reporter describes Sweet Frost as an irradiated Changsha, says its fruit is smaller than ordinary Changsha and has a few (two to three) seeds. He reports that his tree experienced a 2022 freeze and later recovered; the transcript does not capture the temperature unit or injury wording, so it does not establish a minimum temperature.
Accessed
Tom McClendon (Citrus Palms With Tom) · YouTube
https://www.youtube.com/watch?v=sLynIzGDO1w (opens in a new tab)
Summary from transcript: English auto-generated captions, 0:01–17:28. At 1:25–2:31 McClendon identifies this as UGA Sweet Frost/irradiated Changsha, on Flying Dragon and unprotected at his residence. He says he bought it from One Dog Nursery around 2019–2020 (approximate), planted it there, and it went through the Christmas 2022 freeze and did well; it set the most fruit he had seen on that tree to date. No freeze minimum or duration is given. The page showed “4 months ago” when accessed 2026-09-27; exact publication date is unverified.
Accessed
Tom McClendon (Citrus Palms With Tom) · YouTube
https://www.youtube.com/watch?v=1JWgWOQMnW0 (opens in a new tab)
Summary from transcript: English auto-generated captions, 0:01–5:37. At 0:46–3:19 McClendon reports his site reached about 16–17°F on Feb. 1, 2026, and remained below freezing for about 25 hours. The unprotected UGA Sweet Frost/irradiated Changsha is grafted on Flying Dragon trifoliate orange; he estimates it had been in the ground three to four years and says it produced a good number of fruits in the previous year. At his assessment, which he says was about five days after the freeze, visible leaf damage appeared minimal except at tips; he cautions that damage may continue for weeks and be clearer after spring growth. His qualified 10–11°F remark is an estimate, not an observed minimum for this tree. The page showed “7 months ago” when accessed 2026-09-27; exact publication date is unverified.
Accessed
Tom McClendon · YouTube
https://www.youtube.com/watch?v=UR0ooUwHaPQ (opens in a new tab)
Summary from transcript: English auto-generated captions, 0:01–10:08. The video description names UGA Sweet Frost; at 2:13–4:39 McClendon identifies the tasting sample as UGA Changsha and says it is the irradiated Changsha from UGA. He calls its flavor a “really good Mandarin flavor,” describes the shown fruit as seedless, and compares it with typical Changsha, which he says may have 25–30 seeds (4:27–5:00). He also calls it very fruitful and very hardy for a yard (4:51–5:15), without a measured cold exposure or yield. His other tasting samples, Keraji and Kishu, are separately identified. The upload’s exact publication date is unverified.
Accessed