A new spray chrysanthemum cultivar ‘Snow Bowl’ was released by National Institute of Horticultural & Herbal Science(NIHHS), Rural Development Administration (RDA), in 2008. The cross was made in 2005 between ‘03B1-230’, breeding lines of NIHHS and ‘Sei-Alps’. Trials were conducted from 2006 to 2008 for the evaluation and selection of this cultivar, including shading cultures in summer and retarding cultures in spring. The natural flowering time of ‘Snow Bowl’ is late October, but year-round flowering is possible by photo-periodic control. It has single type flowers with white petals. The growth of plant is very vigorous and it is resistant to white rust. The diameter of flower is 6.3cm. Number of flowers per stem and petals per flower are 12 and 31, respectively. Days to flowering under the short day treatment is about 59 and its vase life is 24.1 days in autumn season. ‘Snow Bowl’ was applied as No. 2009-179 on February 18, 2009 for variety protection and the plant variety protection rights have been registered as No. 3239 on August 3, 2010 at the Korea Seed and Variety Service

• Jin-Hee Lim(Floriculture Research Division, National Institute of Horticultural and Herbal Science, RDA) Corresponding author
• Hak-Ki Shin(Floriculture Research Division, National Institute of Horticultural and Herbal Science, RDA)
• Sang Kun Park(Floriculture Research Division, National Institute of Horticultural and Herbal Science, RDA)
• Hae-Ryong Cho(Floriculture Research Division, National Institute of Horticultural and Herbal Science, RDA)
• Hye-Kyung Rhee(Floriculture Research Division, National Institute of Horticultural and Herbal Science, RDA)
• Mi-Seon Kim(Floriculture Research Division, National Institute of Horticultural and Herbal Science, RDA)
• Hyang Young Joung(Floriculture Research Division, National Institute of Horticultural and Herbal Science, RDA)
• Byeong Woo Yae(Floriculture Research Division, National Institute of Horticultural and Herbal Science, RDA)