1. Harvested safflowers entered the flowering period 2-3 days after harvest. It can be harvested on a daily basis. The top of the corolla is golden yellow, the middle is orange, the color is bright, and the leaves are soft, which is the best time for picking. 2, after the processing of safflower harvest, can not be stacked, but can not press. Drying method: remove the impurities, evenly spread the red flowers on the bamboo mat, cover with a layer of white paper or scaffolding, the sun can not direct, in order to avoid the drug distribution. Dry naturally in the sun or dry in a cool well-ventilated place. Do not leave it on hold. Dry it in time to avoid mildew and darkening. In case of rainy weather, dry it in a dry room at 4-6°C in time. Safflower seeds can also be used medicinally. That is, the Chinese herbal medicine "Bai Ping Zi", when the achene matures 20 days after flowering, it is selected for sunny days and cut and dried after threshing.