Cultivation Techniques and Care Methods for Hokkaido Euonymus
Variety origin. Hokkaido euonymus, also known as Japanese euonymus, originated in Sapporo, Hokkaido, Japan. It was introduced in 1986 and, after many years of breeding and selection, became an excellent new variety suited to the climatic conditions of northern China.
Characteristics. Hokkaido euonymus has relatively broad, elliptical leaves with bluntly rounded tips, sturdy shoot tips, obvious apical dominance, and a single straight trunk, showing excellent tree-like traits. It grows relatively fast, with an annual growth of 70--170 cm, and a 5-year-old tree can reach more than 3 m in height. Hokkaido euonymus has a very obvious main trunk and can be planted as a large evergreen broadleaf tree in urban greening.
It is cold-resistant and drought-resistant. Mature trees can tolerate low temperatures of -23.9°C, and their drought tolerance is also better than that of common large-leaf euonymus. It has a strong ability to absorb harmful gases and strong resistance to harmful gases such as sulfur dioxide and hydrogen fluoride. It is suitable for planting in areas of northern China with cold, dry winters.
Hokkaido euonymus has an upright tree posture and remains evergreen throughout the four seasons. It can be pruned and shaped, and can be planted as a specimen, in rows, or in groups. The tree form is tall, and the entire crown remains green in winter. After winter begins, the mature fruits split open, revealing red arils set among the green leaves, which is pleasing to the eye and gives it great ornamental and development value.