Why not cultivars or exotics plants? Because native plants are host plants for native insects, and more insects means more birds and biodiversity! (Baby songbirds especially need caterpillars and other insects before they start to eat seeds, berries and more diverse forage.
Native trees, shrubs, wildflowers or grasses have a special relationship with a coevolved insect: 90% of plant-eating insects (bees, moths, butterflies, crickets, grasshoppers, leafhoppers, ants, etc.) depend on a particular family or families of plants to grow and develop into an adult. They develop an enzyme or other ways to digest an otherwise toxic plant. These are their host plants. Just as monarch caterpillars need the bitter and toxic milkweed, the same relationship applies to other insects, e.g., the violet fritillary needs violets, and the spicebush swallowtail needs spicebush. When you plant a Japanese ornamental? Well that evolved with Japanese bugs, rather than our native insects.
Cultivars are bred for features humans want, such as shorter than the native plant, different color blooms, variegated foliage. The human-modified version may not provide the same benefit to co-evolved insects as the native plant. Breeding can alter the plant structure or chemistry, for example, making its leaves toxic, changing its leafing out time to no longer coincide with the life stage of its co-evolved insect, reconfiguring its bloom shape or petals so that they no longer fit its pollinator, or making its blooms sterile. It requires research on each cultivar to determine to what extent it helps native caterpillars and larvae develop into adult insects.
Look for host and nectar plants that provide year-round forage. Birds need to be able to eat from your garden year round – finding seeds, berries and nuts, as well as bugs. Insects are much less picky about nectar plants (compared to host plants). Groupings of the same plant (for example 3-6 or more together) attract more pollinators. Nuts and berries that persist into winter provide high-calorie forage at the time when birds most need it.
Purchase from native nurseries, or ask if your nursery uses neonicotinoids ("neonics"), America's most common insecticide. Natural Habitat Evanston has checked on many mainstream nurseries. Not one could confirm that its cultivars and non-native plants are neonic-free. Read more about neonics on our pesticide page. They are used to kill insects on the plants and in the soil.
One way to prioritize is to look for native plants that host the most caterpillars (larval hosts). Doug Tallamy, entomologist from the University of Delaware has classified native plants according to how many species of caterpillar they host.
Why measure plants in caterpillars? Because caterpillars are a foundation for the food chain. What eats caterpillars? Spiders, beetles, wasps and other insects, but also mammals (like chipmunks and opossum), amphibians, reptiles, fish, birds, even fungi.
Plant an oak, cherry, willow, birch, hickory, elm or other top native tree for wildlife. If you are planting flowers, add some native goldenrods or asters. These trees, and wildflowers, help the most species of native caterpillars, and that helps birds too.
Trees are important to conserve because they:
More Info: See The Morton Arboretum Link below on the benefit of trees.
What's in a Native Food Forest?
* signifies plant more than one.
Planting for Birds:
Improve habitat for birds and pollinators when you Take the Pollinator Pledge.
Our short guide to get your garden buzzing with life — attracting butterflies, bees, fireflies and birds.
NHE presentation to North Shore Senior Center tuesday club. Variations used for other groups. March 2023
Petition delivered to Mayor Biss, Council members, City Manager Stowe, Clerk Mendoza, Ms. Pollock and Ms. LeBlanc Fisher, April 2023. From Citizens’ Climate Lobby and Climate Action Evanston (formerly Citizens’ Greener Evanston)
Pollinator Pledge yard signs
Gardening that Matters. Get Started or Enhance your Native Garden. March 2023 presentation to North Shore Senior Center's Tuesday Club. A simple way to take action for climate, community healthand biodiversity: Swap out your lawn for native plants. Reconsidering theculture of lawns. Why it matters, steps to prioritize, how to get started, andhow to amplify the change. Leslie Shad of Natural Habitat Evanston presents.
Presentation on Transitioning from Turf (Powerpoint), January 2023. Touches on the issues with turf, why native plants, why leave leaves, concerns about neonicotinoids and outdoor lighting.
Transitioning from Turf presentation to FLOW (Friends of the Lower Olentangy Watershed, Columbus, Ohio) lead by Leslie Shad, NHE Lead. DIscusses the issues with turf, why native plants and why leave leaves, the concern about neonicotinoids, and how to navigate outdoor lighting.
Evanston Host Plant Initiative for the Rusty Patched Bumblebee
Sign up for the NHE Newsletter
NHE video presentation for Greener Glenview: why certify as a National WIldlife Federation community habitat
Fish and Wildlife Service list of host plants for the Rusty-Patched Bumble Bee
Fish and Wildlife Service information page on the Rusty-Patched Bumble Bee
US Fish and Wildlife Service Fact Sheet on the Rusty Patched Bumble Bee
District 65 Process for New Trees and Native Plants at Schools
Website database: search your zip code for plants ranked by Tallamy
No Mow May factsheet from Midwest Grows Green
Audubon Plants for Birds Database
From Saving you Money to the Air you Breathe: Tree Benefits
Chicago Audubon Society Plants for Birds
INVASIVE PLANTS OF THE CHICAGO REGION, An identification guide to 32 invasive or native aggressive plants most damaging to local ecosystems. Compiled by Robert Sullivan, Argonne National Laboratory (Retired) and Henrietta Saunders, University of Illinois Master Naturalist. 2022
Plants measured as host plants for US caterpillar species from Doug Tallamy, Univ of Delaware
Lady Bird Johnson Wildflower Center - search native plants by state
Donating to Climate Action Evanston and earmarking your donation for Natural Habitat Evanston. You can further earmark your donation to one of our initiatives.
Join our Pollinator Pledge and let the city and landscapers know we care about sustainable yards. Take an optional yard sign to spread the word.
$25/bag to local residents (pickup; no shipping). We also have some $5 seed packets of bottlebrush and little bluestem grass. While supplies last. Emails should include your phone number and which species you are requesting. Pay by check payable to Citizens’ Greener Evanston at pickup.
Help at outdoor workdays
Rethink how you Lawn
Northwestern students Petition for Bird-Friendly Films at Mudd Library. Mudd Library accounts for over 14% of bird deaths and injuries on campus each year. Applying patterned window film to a portion of the building would dramatically reduce collisions that are fatal to birds.
Get updates and share your thoughts on our FB Group. You can also check out our FB page here https://www.facebook.com/NaturalHabitatEvanston
Just want to spread the word on certain steps? Mow Less-Leave Leaves (2-sided yard sign) or Leafblowers sign
Get news the next time there is a threat to Isabella Woods. (Only sent when there is news.)
Provide Food, Water, Shelter, Places to Raise Young and Sustainable Steps for wildlife. It helps Evanston maintain its NWF Community-wide Wildlife Habitat certification.
