Bees are in decline and we need to encourage them into the garden as pollinators and also provide them with a home. When planting up containers, use plants that will give sustenance to bees and other insects. A pot full of herbs will attract bees and give them a buffet to enjoy. Plant marjoram, thyme, sage and rosemary in a pot and wait for them to arrive. If you don't use them, leave them to flower for maximum feeding.