Yanghwasorok is a book on floriculture written by a famous scholar Kang Hui An (1417-1464) in 1449 on the basis of his personal experience.
Its title carries the meaning of a simple record on the cultivation of flowering plants.
The book contains the methods of cultivating 16 species of flowering plants such as chrysanthemum, Japanese apricot tree, pomegranate and royal azalea, transplanting flowering plants in flowerpots, storing flowers in winter and appreciating oddly-shaped stones.
It underscores the need to control soil components, sunlight, humidity and temperature according to the characteristics of plants in the cultivation of flowers, and refers to the regulations for planting flower seeds and transferring flowering plants, the methods of cultivating beautiful flowers, the diseases of flowering plants, etc.
It also specifies the grafting and other propagating and cultivating methods and the changes from grafted flowering plants.
Such contents prove that various species of flowering plants for ornament were widely cultivated in Korea in those days and the theory on the cultivation of flowering plants and its practical experience were developed and accumulated considerably.
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