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Why is the fragrant rosewood (Robinia pseudoacacia 'Idaho') called a precious tree species?

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The fragrant rosewood, also known as the "tree of wealth," is a deciduous tree in the Fabaceae (Papilionaceae) family, native to Spain and introduced from South Korea in 1998. It can be planted in both northern and southern China. In the north it blooms twice a year, and in the south three times a year, with a flowering period of 60-90 days. Its corolla is butterfly-shaped, pink or purplish-red, with abundant and beautiful flowers, and it has high ornamental, environmental, landscaping and economic value. It grows rapidly with a well-developed root system; a 3-year-old tree reaches 4.5-5.0 m in height, 5-7 cm in diameter and 2.0-2.5 m in crown width, and is cold-resistant, drought-resistant and salt-alkali-resistant. Propagation of the fragrant rosewood

The fragrant rosewood, also known as the "tree of wealth," is a deciduous tree in the Fabaceae (Papilionaceae) family, native to Spain and introduced from South Korea in 1998. It can be planted in both northern and southern China. In the north it blooms twice a year, and in the south three times a year, with a flowering period of 60-90 days. Its corolla is butterfly-shaped, pink or purplish-red, with abundant and beautiful flowers, and it has high ornamental, environmental, landscaping and economic value. It grows rapidly with a well-developed root system; a 3-year-old tree reaches 4.5-5.0 m in height, 5-7 cm in diameter and 2.0-2.5 m in crown width, and is cold-resistant, drought-resistant and salt-alkali-resistant.

Propagation methods for the fragrant rosewood include root burial, tissue culture, cuttings and softwood grafting, but the root burial method is used most often. With the root burial method, before spring bud break the roots of the fragrant rosewood are generally left at 15-20 cm, and the rest is cut into sections as seed roots, 5-7 cm long and 0.3-1.5 cm in diameter, selecting smooth, pest- and disease-free 1- to 2-year-old main and lateral roots. In northern regions, planting is best done from March to mid-April.

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