Menyuan Rape-Flower Valley (Qinghai)
A provincial weather institute publishes a bloom forecast for this valley — township by township. For 2026 it read: Dongchuan and Quankou 1-18 July, Haomen Farm and Qingshizui 2-19 July, the northern townships 4-20 July.
Qinghai's provincial meteorological institute issues an agricultural forecast for this valley's bloom, broken down township by township, so the viewing window is published rather than guessed. The 2026 forecast put the province-wide peak in the first half of July.
The bloom is short and the dates shift every year — the forecast is reissued annually, so a date you read once is not a date you can plan next year on. The same forecast warns that the flowering period brings sudden downpours, hail and lightning, and advises visitors to check the near-term warnings before setting out.