When will the rape blossom?

1. In China, from south to north, the flowering period of rape flowers starts from 1 to August. 65438+develops near the Tropic of Cancer in February, in the Sichuan Basin and the northern part of Lingnan and Wuyishan in March, in the coastal areas of Jiangsu and Zhejiang in April and May, and in June and July, it tends to be southwest-northeast trend.

2. Rape flowers usually bloom in March and April every year, but there are early and late. In different years, the time sometimes differs by half a month. There are many factors affecting rape flowering, mainly weather conditions, rape varieties and topography.

3. Flowers began to bloom at the end of February, flourished in mid-March, and withered at the end of March and early April (before Tomb-Sweeping Day). The flowering period is generally more than 20 days. If the temperature does not rise in spring and remains low for a long time, rape may blossom in mid-March, blossom in late March and early April, and wither around 10 in April.

Rape flowers are golden yellow, which adds colorful colors to the countryside. Yu Shao's poem says: "Rape flowers are full of rehmannia, and butterflies in the flowers are busy;" The breeze blew golden waves, overflowing with intoxicating fragrance. "The nectar in rape flowers and pollen attracts butterflies and bees to fly in the flowers. The rich floral fragrance is intoxicating.

5. Rape flower is a small flower consisting of 4 sepals, 4 petals, 2 pistils, 4 long stamens and 2 short stamens, with abundant pollen. The oil content of seeds is 35~50%, which can be used for oil extraction or feed. In addition, the tender stems and leaves of rape flowers can also be eaten as vegetables.