Egg-yolk fruit, also known as Xiantao, will mature after the end of July after 50 to 60 days of development and can be harvested. However, if seedlings planted by seeds are planted in spring and managed properly, only a few flowers will bloom after September, and the fruit development will take more than 70 days. Therefore, only after 1 1 month will a few fruits mature for harvesting, which is a rare tropical fruit. The fruit maturity time is usually1February, and it needs to be placed for 4 to 7 months after harvesting.

Introduction of Xiantao egg yolk fruit

Egg yolk, also known as Xiantao, is a perennial plant belonging to the genus Egg yolk in the family Caprifoliaceae. The tree is about 6m high, with alternate leaves, narrow oval leaves and small white flowers, which are clustered in the axils of leaves.

The fruit is spherical, green when immature, yellow-green to orange-yellow when mature, smooth, thin-skinned, orange-yellow pulp, rich in starch, egg yolk-like texture and aroma, low water content and slightly sweet taste. Its taste is between sweet potato and durian. Seeds usually 1 to 2, suborbicular or elliptic.

Egg yolk is native to Cuba and tropical North America, mainly distributed in Central and South America, northeastern India, northern Myanmar, Viet Nam, Cambodia, Thailand and southern China. China was introduced in 1930s and cultivated in Guangzhou in 1950s. China, Guangdong, Guangxi, Hainan, Yunnan, Fujian and other tropical and sub-tropical areas have sporadic cultivation.