Coreopsis are a great choice for pollinators as they provide nectar and pollen to bees, butterflies and helpful insects. The bright flowers are a favorite of native bee species in the summer. After flowering the seeds may also be consumed by birds, providing additional interest to the garden. Coreopsis is easy to grow and does not require a lot of pesticides, thus helping to promote healthier ecosystems and pollinator-friendly gardening. In some areas multiple varieties can provide a continuous nectar supply all season long. Many people like to grow Coreopsis in butterfly gardens and in their native plant gardens to promote biodiversity and floral beauty.