Raspberry fruit is aggregate fruit, and fruit can be seen from March to April. With the increase of drupe, the diameter of aggregate fruit is also increasing, and the color is gradually changing from blue, yellow, green, orange, yellow and red. Mature red fruits are sold as special fruits in many places. It should be noted that the time window from green to orange is not long, just a few days, and local drug farmers often do not pay attention when picking raspberry fruits, and pick a raspberry fruit at the same time.