Horticulturists and locals are flocking to the annual Yangtze Delta Chrysanthemum Festival at the Hangzhou Botanical Garden. The annual Yangtze Delta Chrysanthemum Festival at the Hangzhou Botanical ...

Chrysanthemums tend to have few disease or insect concerns as the flowers contain a powerful insecticide known as pyrethrin. But don’t worry; the pollen and nectar are safe for all pollinators.