To encourage more pollinators to visit your Plumeria flowers, create a pollinator-friendly garden by planting a diverse range of nectar-rich flowering plants. Flowers with different colors and shapes can attract a variety of pollinators. Avoid using chemical insecticides or pesticides, as these can harm pollinators. Provide a water source, such as a shallow dish with pebbles, for thirsty pollinators. Maintaining a healthy garden ecosystem with ample food sources and nesting habitats will attract and support a diverse range of pollinators to visit your Plumeria flowers.