霜降Frost's Descent
翠玉
Cuìyù

Cuiyu

sourced
idcuiyu
cuiyu

TRES cultivar TTES 13, 硬枝紅心 × 臺農80號, named in 1981 with Jinxuan: more upright and less vigorous, high aroma; for Baozhong and oolong only.

Botanical
Camellia sinensis
Kind
clonal cultivar
Origin
Taiwan

Also sold or written as 7#

Chinese variants
  • 臺茶13號Táichá 13 HàoTTES No. 13
  • 二九仔 / 2029 品系Èr jiǔ zǎi / 2029 Pǐn xìEr Jiu Zai / breeding line 2029Strain name (TRES).
  • 台茶13号Táichá 13 hàoTaicha No. 13
Translations and trade names
  • Tsui Yu
  • Jade Oolong
  • TTES No. 13
  • TTES 13

Names and ambiguities#

"Jasmine-like" Cuiyu

Shops often describe Cuiyu as jasmine- or lilac-scented. TRES says only that its aroma is high.

1

Notes#

Strain 2028 shared its parents but was not named, having no outstanding traits. In Mingjian, Sijichun has displaced part of the TTES 13 planting.

Teas made from it#

台湾乌龙茶
Taiwan oolong Táiwān wūlóngchá
Grouping for Taiwan's partly oxidised teas, from strip Baozhong (about 8–25% oxidation per TRES) to Oriental Beauty (50–60%), mostly from Qingxin Wulong and Jinxuan.
sourced

Sources#

  1. Government and public institutionsaccessed 2026-10-18

    Archived TRES article listing parentage, aliases, naming years and suitable tea types for TTES 12, 13, 17, 19, 20 and 22.

  2. Government and public institutionsaccessed 2026-10-18

    Explains strains 2027/2028/2029 (application for naming on 民國70年4月10日), parentage table, and DNA tests showing farmers' so-called '2028' is really 臺茶12號. Cites 吳與楊 1982 and 徐與阮 1993.

  3. Government and public institutionsaccessed 2026-10-18

    Short trait descriptions of 青心烏龍, 青心大冇, 臺茶12/13/18/19/20/21, 四季春. Source of the TRES 'milk aroma' (牛奶香味) statement for 金萱 and the 'selected by Muzha farmers' statement for 四季春.

  4. Government and public institutionsaccessed 2026-10-18

    Region-by-region notes: 梨山/八仙山, 名間, 竹山 (incl. 杉林溪 at 大鞍), 鹿谷, 魚池/埔里, 仁愛, 阿里山 etc. A later capture of the same URL now redirects to a tbrs.gov.tw error page; the 2021 capture has the text.