Bees depend on flowers for own survival and the survival of their offspring. Pieris japonica is an amazing plant. It is hardy, drought tolerant and when pruned after bloom, it produces a mass of flowers the following spring. A delicious scent tells bees there is food available. Nectar and pollen are available from flowers such as these. all bees are vegetarian and need pollen for their protein source and nectar for their source of energy. Go to your garden center and pick one of the many available varieties.