What is eucalyptus? Will it bloom?

The forest types of eucalyptus in Australia are: dry broadleaf forest (see figure), wet broadleaf tree, savanna, dry broadleaf tree and alpine meadow. Eucalyptus likes light and its branches and leaves are sparse. Most require the annual average temperature to be above 65438 05℃, and the most Leng Yue is not lower than 7 ~ 8℃. Generally, it can grow in areas with annual precipitation of 500 mm, and it grows better when the annual precipitation exceeds1000 mm. It is suitable for growing in acid red soil, yellow soil and alluvial soil with deep soil layers, but it grows better in places with deep soil layers, loose soil layers and good drainage. The main root is deep and has strong wind resistance. Most roots and necks have wood tumors, which can store nutrients and germinate and renew. Generally, it can blossom and bear fruit in 3 ~ 4 years after afforestation. Eucalyptus seedlings are divided into bare root seedlings and container seedlings. Generally, one-year-old bare-root seedlings separated into beds after sowing are used for surrounding greening; Large-scale afforestation mostly uses container seedlings. The planting season is generally carried out in late spring and early summer or after the rainy season begins. According to the business purpose, the growth characteristics of trees and the degree of quantitative maturity, the age and diameter class of logging are determined. The cutting method is generally block cleaning. Germination and regeneration are the characteristics of eucalyptus management, which have the advantages of fast initial growth, straight dry shape and fast intermediate income.

Scientific name: Eucalyptus

Nickname: You Jiali

Family: Myrtaceae

Genus: Eucalyptus

Distribution: At present, the distribution center is in Oceania. It is cultivated in all provinces (autonomous regions) and cities in China 17.

Description: Evergreen plant, with old leaves falling off periodically within one year. Most species are tall trees, a few are small trees and a few are shrubby. The crown shapes are steeple, multi-branch and vertical branch. Leaves simple, entire, leathery, sometimes covered with a thin layer of wax. Leaves can be divided into three categories: young leaves, middle leaves and mature leaves. Most young leaves are opposite, small, heart-shaped or broadly lanceolate.

Habits: Mostly subtropical plants. Hi-light, good humidity, drought resistance and heat resistance. Afraid of cold, very sensitive to low temperature. Some species originated in the tropics and cannot tolerate low temperatures below 0 degrees; Some species grow in a warm climate and can withstand a low temperature of-10 degrees. It can grow in all kinds of soils, and most soils can adapt to acidity and alkalinity. The most suitable soil is fertile alluvial soil.

Garden use: Eucalyptus has graceful posture, evergreen seasons and extremely rapid growth, and has the ability to germinate, renew and improve wetlands. Tree species suitable for landscaping. The leaves contain aromatic oil, which can sterilize and repel mosquitoes and can be used to extract sesame oil. It is also a good greening tree species in convalescent areas, residential areas, hospitals and public green spaces. The twigs and bark contain tannin, which can be used to extract tannin extract; Bark and wood can also be used to make pulp.

Propagation: Propagation by sowing, grafting, cutting and shoot tip tissue culture.