Where is the origin of Japanese euonymus? Introduction to the distribution of its main producing areas
Japanese euonymus is a commonly used greening plant, seen everywhere on roads, in courtyards and gardens, so where is the origin of Japanese euonymus?
1. Basic introduction to Japanese euonymus
Japanese euonymus is a shrub or small tree of the Buxaceae family, Buxus genus, 0.6-2.2 m tall, 5 cm DBH, with four-angled branchlets, smooth and hairless. Leaves leathery or thinly leathery, ovate, elliptic or oblong-lanceolate to lanceolate, 4-8 cm long, 1.5-3 cm wide.
Japanese euonymus likes light, is slightly shade-tolerant, and has a certain cold resistance. In the Huai River basin it can overwinter naturally in the open, in North China it needs protection to overwinter, and in most areas of Northeast and Northwest China it is grown as a potted plant. It has no strict requirements for soil, can grow in slightly acidic and slightly alkaline soil, and grows rapidly and branches heavily in fertile, well-drained soil.
2. Where is the origin of Japanese euonymus?
The origin of Japanese euonymus is northeastern Guangxi (Lingui, Guanyang), southwestern Guizhou (Zhenning, Luodian), southern Hunan (Yizhang), northwestern Guangdong (around Lianxian), and southern Jiangxi (Anyuan, Huichang).
3. What are the common varieties of Japanese euonymus?
1. Silver-edge Japanese euonymus
Petioles and branchlets are white-green or gray, and the leaf margins have very narrow silvery-white bands.
2. Hokkaido euonymus (new variety)
The apex is bluntly rounded. Its main characteristics are a thick terminal shoot, obvious apical dominance, an obvious trunk, and a single straight stem, showing excellent tree-like characteristics. It grows relatively fast, with annual height growth reaching 70-170 cm, average growth of about 70 cm, and 5-year-old seedlings can reach more than 3 m. In winter the entire crown remains green. It is cold-resistant and drought-tolerant, and mature trees can endure a low temperature of -23.9°C. Introduced from Hokkaido, Japan, it is suitable for planting in North China, Northwest China and areas to the south.
3. Golden-edge Japanese euonymus
Leaf margins are golden yellow.
4. Golden-center Japanese euonymus
The bark is grayish brown, the branchlets and petioles are pale yellow, and the center of the leaf is golden yellow.
Japanese euonymus is an excellent garden greening tree species. It can be planted as hedges and background planting material, and can also be planted individually in flower borders. Shaping them into low, huge spheres is quite beautiful.