A wide range of annual flower festivals are held across the year in Sejong.
Spring Flowers Festival in Jochiwon
- Period : Early April
- Venue : Jochiwon Station main street, Jocheon streamside
Mihocheon Streamside Rape Flower Festival
- Period : May
- Venue : Mihocheon streamside in Yeoyang-ri, Yeondong-myeon, Sejong-si
Jochiwon Lotus Flower Festival
- Period : July
- Venue : Jocheon Yeonkkot (Lotus Flower) Park
National Flower Rose of Sharon Festival in Sejong
- Period : Mid-August
- Venue : Sejong Convention Center
Mihocheon Streamside Cosmos Flower Festival
- Period : Late September
- Venue : Mihocheon streamside in Yeyang-ri, Yeondong-myeon, Sejong-si
Yeongpyeongsa Korean Chrysanthemum Festival
- Period : Early October
- Venue : Yeongpyeongsa Temple on Janggunsan Mountain