Steps for Supporting pollinators
The following is a guideline to help you make your yard a safer place for wild things, particularly pollinators which plants (both wild and domestic) depend on highly for survival.
Stop using pesticides
Particularly for a standard home landscape, most pesticide use is a waste of money anyway. Most home-use pesticides don't really work, most kill more beneficial organisms than the target organisms, and all are toxic to your animals and you.
Plant nectar rich flowers
Native plants like this beebrush (Aloysia gratissima) have not been selected by humans for a bright showy flower, but by insects for their ability to produce lots of nectar. Nectar-rich native plants are a lifesaver for native insects like butterflies and bees.
Plant larval host plants
Plants like the pipevine (Aristolochia watsonii) are food plants for the larvae of the butterflies and moths we love. Some species are more specific about what plants their larvae will eat than others. Learn about larval host plants and plant a diversity of them!
Plant Native Grasses
Grasses are not only larval host plants for many butterflies, they provide materials for insects and birds to make nests. They also provide actual habitat--safe places for lizards, insects, birds, and more. Also, no landscape design seems complete without a few native grasses.
Water is essential for all life, even wild things. Providing a consistent source of water (with rocks so that bees don't drown) really makes life a lot easier for the wildlife in your backyard. Make sure you clean the water vessel at least once a week and dump out stagnant water so you don't get mosquitos.