The cut flower cultivar 'Champion' of Campanula medium L. could be germinated at 20℃ in a growth chamber for one month and grown in the field in autumn. It could produce cut flowers during winter in Taiwan. There is no difference in cut flower quality of main or lateral inflorescences when the planting distance were 20, 30 or 40 cm. It could produce more cut flowers when the planting distance was at 30 cm due to more branch inflorescences. The flowering period of Campanula medium L. was evaluated by night break. Night break at 7th and 9th weeks after planting the cultivar 'Champion-Blue' flowered at 15th and 17 weeks. Pinching shoot tip before bolting increased the number and quality of cut flowers, such as length and number of lateral branches, stem thickness, fresh weight and number of the cut flowers.