Apples generally grow between 30-60 degrees north and south latitude, especially in Shaanxi, Gansu, Qinghai and Hexi Corridor. Western Henan belongs to the hilly region of the Loess Plateau, and it is one of the earliest areas where apples grow. The large temperature difference between day and night is beneficial to the increase of sweetness. It will grow well in this environment. Apples. ) is a deciduous tree. Usually, the height of trees is 15m, but the height of cultivated trees is only about 3-5m. The trunk is grayish brown, and the bark has fallen off to some extent. The flowering period of apple trees depends on the local climate, but it is generally concentrated in April-May. Apple is a cross-pollinated plant, and most varieties cannot form fruits by self-pollination.

Generally, apples begin to bear fruit 2-3 years after planting. Generally, fruits are red, but it depends on the variety. The fruit of apple tree is rich in minerals and vitamins and is one of the most commonly eaten fruits. The fruit growth period is generally 65-87 days for early-maturing varieties, 90- 133 days for middle-maturing varieties and 137- 168 days for late-maturing varieties. Generally speaking, apples can survive 15-50 years after planting.