Jeju Canola Flower Festival Canola flowers on Jeju Island herald the start of spring. Following the winter camellia festival, the resort island now invites visitors to its canola flower festival, which will run until the end of April. At Hueree Park, visitors won’t just find a field of yellow canola flowers. Red plum blossoms and hydrangea, set to bloom as early as April, will render a more spring-like atmosp...