1. Morphological characteristics: Papaya is a small tree with a height of 5-1 meters. Its branchlets are cylindrical and purple, and its leaves are oval. It is hairy when it first grows out, and then it will slowly fall off. Its flowers are usually solitary, 2.5-3 cm in diameter, bell-shaped calyx tube, lanceolate sepals and pale pink petals. The fruit is oblong, with dark yellow surface and a certain aroma, and generally ripens in September-October. 2. Growth habit: Papaya is mainly distributed in southern provinces and cities of China, such as Guangdong, Guangxi, Fujian, Yunnan and Taiwan Province. This plant likes light, but it is not tolerant of shade. Generally, it grows in a place sheltered from the wind and sunny. Its environmental requirements are semi-wet and semi-dry. If it is too wet, the flowering period will be shortened. After fruiting, the humid climate is more conducive to growth, otherwise it is easy to drop fruit. Its cold tolerance is average, and it is difficult to overwinter in the north. 3. Maintenance method: Papaya is generally cultivated in deep soil. Loose and fertile soil is more conducive to its growth. Can not be planted in low-lying places, or the roots will rot due to water accumulation. In daily maintenance, the basin soil should be kept slightly wet, neither too dry nor too wet. You can water less at flowering stage and more after fruiting. Appropriate amount of phosphorus and potassium fertilizer should be added before, after and during fruit expansion. 4. Main value: papaya has high ornamental value, beautiful tree shape, concentrated flower clusters and large flowers. In addition, its fruit has edible value, not only good taste, but also high nutritional value. It is rich in proteolytic enzymes, which is beneficial to the decomposition of protein and starch. At the same time, it also contains carotene and vitamin C, which has strong antioxidant capacity and can accelerate tissue repair.

second, papaya tree pictures