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).

Multi-stem Korean red pine (Pinus densiflora f. multicaulis Uyeki) is known as the forma of Korean red pine and is distributed in both Korea and Japan. Unlike Korean red pine having one or two main stems, it grows with many stems which are branched from the lower part of the tree trunk. Owing to its unique stem shape and ornamental value, it has been used as a precious ornamental tree. A total of 14 individuals with distinct characteristics were collected between 1998 and 2000 to develop new cultivars in Pinus spp. with high added value. After asexual propagation through grafting, at least 20 seedlings per tree were planted in a test field and the phenotypic characteristics were investigated. Based on the results, three individuals were re-selected and tested for uniformity and stability for 3 years. Finally, one individual with evident conical crown form was renamed as ‘Yedasol’ and was registered as a new cultivar in 2021. In addition, ‘Yedasol’ has high ornamental value derived from its thinly cracked gray-brown bark, soft needle leaf, reddish-purple male strobilus, and dense cone arrangement (Registration No. 255).