All species of solitary bees are very effective pollinators, so they should be encouraged into gardens.
Food and Habitat:
Solitary bees usually feed on nectar from flowers. As their name suggests, they do not live in colonies but live a solitary life. Depending on the species, the female solitary bee will either dig a tunnel in the ground, a brick wall or in wood, or create a void within a plant stem to make a nest.
Grow a succession of flowering plants that produce plenty of pollen and nectar. Avoid growing double-flowered varieties of ornamental plants as these limit the bees' ability to collect pollen and nectar. Sections of bamboo cane, tied into bundles and positioned around a garden will often provide suitable nesting sites for solitary bees.