Every spring, I like to remind folks to think of the bees, butterflies, and birds as gardening gets underway in full force. Monarch butterfly numbers continue to decline at rapid rates (86% in one year just in California alone, per CNN), attributable to a combination of pesticide use, climate change, and habitat loss. Same story for pollinators like bees and beneficial wasps, and birds.
But helping wildlife stick around is easier than you might think. You don’t need to completely turn your whole yard into a small scale jungle. The best way to start is to add a few native perennials, shrubs, or small trees. A few of my favorites for attracting pollinators:
Black Lace Elderberry 
Blue Muffin viburnum 
Mahonia bealei
The Virginia Native Plant Society has a website offering PDF guides to plants that are native to each region of Virginia; check that out here: https://vnps.org/virginia-native-plant-guides/
If you wanted to go beyond just planting native plants, the National Wildlife Federation has great tips and ideas for creating a complete wildlife garden, including how to add sources of shelter and water.
The other side of this equation is also knowing what NOT to add to your garden. There are plants for sale at many nurseries and garden centers that, unfortunately, not only contribute little for native wildlife, but actually go on to harm the environment as they spread invasively via seed dispersal or suckers, pushing out native vegetation and disturbing streams and rivers. You can find a comprehensive list of invasive plants here:
https://www.dcr.virginia.gov/natural-heritage/document/nh-invasive-plant-list-2014.pdf
The Garden Dude 