Here what PAN says to help the bees
Protect bees from pesticides. Pesticides kill beneficial insects including pollinators and natural enemies that control common pests like aphids. Certain pesticides, including neonicotinoids, are highly toxic to honey bees in particular. Instead of using pesticides, explore organic ways to grow healthy plants, such as using compost for healthy soil and controlling pests with homemade remedies and biocontrols like ladybugs.
Provide a variety of food for bees. Consider clustered plantings with staggered blooming times so there is food throughout the year and particularly in the late summer and fall. Native plants are always best, and inter-planting and hedgerows provide additional forage on farms.
Provide a year-round, clean source of water for bees. This can be a river, pond, irrigation system, rainwater collection system or small-scale garden water features. Shallow water sources can provide more than enough water for bees, without creating opportunities for mosquitoes to breed.
Provide shelter for bees. Leave some ground undisturbed and untilled and some dead trees and plants on the property for wild bees to nest in.