접시 모양의 꽃을 가진 분화용 무궁화 ‘희원’ = ‘Huiwon’: A Cultivar of Rose of Sharon (Hibiscus syriacus L.) with Plate-Shaped Flowers for Pot Cultivation

다국어 초록 (Multilingual Abstract)

Rose of Sharon (Hibiscus syriacus L.) blooms in summer and is widely used as an ornamental tree because of its beautiful flowers and long flowering periods. To develop a new cultivar suitable for pot cultivation, the artificial crossing of H. syriacus cv. Hansŏ, a seed parent, and H. syriacus cv. Hongtanshim, a pollen parent, was established in 2011. Among the 19 artificially bred seedlings that bloomed in 2014, three individuals were selected by the characteristics based on flower shape, flower size, petal color, presence and size of the red eye zone, leaf characteristics, tree form, and growth of the current-year branch. After the second test on its traits for three years, one individual (NFHH05) with a unique flower shape and slow growth was selected. This individual was investigated again for uniformity and stability of trait expression, and was registered as a new cultivar under the name ‘Huiwon’ in 2022. ‘Huiwon’ has bright pink flowers with thick petals and distinct petal veins. The flowers were in full bloom and were shaped like a plate, with the tips of the petals curling outward. It begins to bloom at the beginning of July, and the average flowering period is approximately 63 d. ‘Huiwon’ has a slightly straight tree form and is a slow growing cultivar, which makes it suitable for medium-sized pot cultivation or flower gardening (Grant number 8875).