More than 17,000 chrysanthemums were nurtured and trained, some for more than a year, by our horticulturists to resemble balls, spirals, columns, pagodas, and more. Chrysanthemum Festival is the largest display of exhibition chrysanthemums in the United States. The star of the show, the Thousand Bloom Mum, boasts more than 1,500 perfectly arranged yellow flowers on one plant and is the largest grown outside of Asia.