Rabbits: Rabbits are also known to eat tall coreopsis, especially the young plants. They typically feed on the leaves, stems, and flowers of the plant.
Voles: Voles are small rodents that can cause damage to tall coreopsis plants. They typically feed on the roots, stems, and leaves of the plant.
Aphids: Aphids are small insects that can feed on the leaves, stems, and flowers of tall coreopsis plants. They can cause the plant to become weak and stunted.
Spider mites: Spider mites are small insects that can feed on the leaves of tall coreopsis plants. They can cause the leaves to become discoloured and eventually fall off.
Thrips: Thrips are small insects that can feed on the flowers and leaves of tall coreopsis plants. They can cause the flowers to become deformed and the leaves to become discoloured.