West Virginia Nature Guide: September 2026
September is the great migration month in West Virginia — the broad-winged hawk flight streams over the Allegheny Front, the monarchs funnel south along the ridges, the high country takes on its first fall color, and the harvest turns to apples and autumn crops. The mountains begin their slow, spectacular turn.
What to look for this week
- Feeders are at their winter peak across West Virginia — cardinals, Carolina chickadees, titmice, and juncos work the seed while the Brooks Bird Club's Christmas Counts wrap up statewide.
- The Quadrantid meteor shower peaks in a short, sharp burst around January 3 — watch after midnight from a dark mountain site like Spruce Knob or Dolly Sods.
- A planning week — review last season and order seeds early, before the short-season varieties the Allegheny high country depends on sell out.
Birds This Month
September is one of the best birding months in West Virginia, when fall migration peaks and the famous hawk flights stream over the ridges. The Allegheny Front and the high ridges funnel thousands of broad-winged hawks in great kettling swirls in mid-September, along with sharp-shinned and Cooper's hawks, ospreys, bald eagles, American kestrels, and peregrine falcons riding the updrafts. The songbird migration runs heavy too — waves of warblers (now in confusing fall plumage), vireos, thrushes, tanagers, grosbeaks, and flycatchers pour through the greening-to-golden forests.
The fields and edges fill with migrating sparrows — white-throated, white-crowned, and Lincoln's join the residents — and common nighthawks stream south at dusk. Ruby-throated hummingbirds push through, fattening on jewelweed and salvia before crossing the Gulf. Chimney swifts gather into spectacular pre-migration roosts, swirling into chimneys at dusk by the hundreds. The resident northern cardinal, the state bird, and the year-round flock anchor the woods as the great river of migrants flows south overhead. This is a month for the ridges, binoculars in hand.
What's Blooming
September is the climax of West Virginia's autumn wildflower bloom, when the goldenrods and asters take over the landscape. The fields, roadsides, and mountain meadows blaze gold with many goldenrod species and shimmer with the purples, blues, and whites of the New England, New York, calico, and heath asters — the crucial last great nectar source before frost, feeding the migrating monarchs and the season's final pollinators. Ironweed, joe-pye weed, and the tall sunflowers still tower in the wetter ground.
Along the streams the scarlet cardinal flower and blue great lobelia finish, and the moist banks glow orange with jewelweed. The high glades of Cranberry and the Allegheny meadows hold their late flowers and the reddening cranberry and bog plants. Roadsides carry the last black-eyed Susan, evening primrose, and boneset. In gardens, asters, sedums, dahlias, zinnias, mums, and the late black-eyed Susans peak. The goldenrod-and-aster show is the signature late-season bloom of the West Virginia mountains, the year's flowers going out in a final blaze of color.
Garden This Month
September is the turning of the West Virginia garden from summer harvest to fall and winter preparation, with the first frosts arriving on the high country even as the valleys stay warm. The summer crops finish — pick the last tomatoes, peppers, eggplant, beans, squash, cucumbers, and melons ahead of the mountain frost, which comes early on the ridges — while the fall crops come into their own: harvest broccoli, cabbage, kale, lettuce, spinach, carrots, beets, and winter squash as the cool weather sweetens them.
This is the prime month to plant garlic for next summer, sow cover crops of winter rye, clover, or vetch on emptied beds, and set out the last fall greens under the lengthening cool nights. Keep row cover handy to push the harvest of tender greens past the first light frosts. Divide and plant perennials, plant spring-flowering bulbs late in the month, and begin the fall cleanup — composting spent plants and mulching the beds. In the warm valleys there are still weeks of growing left, but in the highlands the garden is already shutting down for the long mountain winter.
Zone 5b (Allegheny Highlands): the first hard frosts arrive, often by mid-month on the high ridges, ending the warm-season garden. Harvest everything tender ahead of the freeze, plant garlic, sow a cover crop, and protect the last greens under row cover for a few more weeks of cold-hardy harvest.
Zone 6a (central mountains): the first frost looms by late month. Harvest the last tomatoes and peppers ahead of it, keep picking cool-season crops, plant garlic and cover crops, and set out the fall greens that thrive in the cooling weather.
Zone 6b (foothills & mid-elevation valleys): frost is still a few weeks off in most years. Keep harvesting the summer crops, sow a final round of fast greens and radishes, plant garlic late in the month, and begin cleaning up spent beds and sowing cover crops.
What's at the Farmers Market
September markets in West Virginia shift from high summer to the bounty of autumn. Apples become the headline — the homegrown Golden Delicious and a wide range of mountain varieties — alongside the last peaches, plums, grapes, melons, and the first pears. The vegetable tables overflow with winter squash, pumpkins, sweet corn (finishing), tomatoes, peppers, eggplant, beans, potatoes, onions, cabbage, broccoli, kale, and the first fall greens and sweet potatoes.
The stands turn autumnal with pumpkins, gourds, Indian corn, mums, sunflowers, and cut flowers, and the harvest staples of honey, eggs, mountain cheeses, and fresh cider appear. Choose apples that are firm and heavy with good color, and store them cold and away from other produce for months of keeping. Pick winter squash and pumpkins with hard, unblemished rinds and an inch of dry stem, and cure them in a warm spot before storing. Stock up on tomatoes for the last canning of the year, and enjoy the rich crossover of summer and fall on the West Virginia tables.
Night Sky This Month
September brings the balance of the autumn equinox near the 22nd and the lengthening nights that make for fine, comfortable stargazing over West Virginia's mountains. The summer Milky Way still arches high after dusk through Cygnus and the Summer Triangle, but the autumn constellations now climb the eastern sky — the great square of Pegasus, the chained princess Andromeda, and the W of Cassiopeia riding high in the north.
This is a fine season to find the Andromeda Galaxy with the naked eye from a dark site — a faint oval glow 2.5 million light-years away, the most distant thing the unaided eye can see — and the Double Cluster in Perseus in binoculars. There is no major meteor shower this month, so September favors the deep sky from a dark mountain site such as Spruce Knob, the Cranberry Wilderness, or Watoga State Park. As the nights cool and the air clears, the seeing sharpens. The printable West Virginia night-sky guide lists this year's exact planet positions and the best dark-sky sites for your region.
Butterflies & Pollinators
September is monarch-migration month in West Virginia, the season's most stirring butterfly event. The last monarch brood — the long-lived migratory generation — streams south through the state, funneling along the Allegheny ridges and over the New River Gorge, fattening on the abundant goldenrod and asters before the great journey to the Mexican overwintering forests. On a good day in mid-September, dozens of monarchs may drift past a ridge or nectar in a goldenrod field, gliding southwest on the cooling air.
Other butterflies are still abundant in the warm early-fall days — common buckeyes (often peaking now), sulphurs, cabbage whites, painted ladies, red admirals, question marks, viceroys, fritillaries, and grass skippers crowd the late blooms. The eastern tiger and black swallowtails fly a final brood. The goldenrod-and-aster bloom is the critical fuel for all of them — leave it standing through the fall. Watch the sunny meadows and ridgelines for the southbound monarchs, the unmistakable sign of the turning season in the West Virginia mountains.
Trees This Month
September is when West Virginia's fall color begins, the turn starting high in the mountains and working downward. On the cold ridges and in the high glades, the red maple flushes scarlet, the black gum burns deep red, the sourwood and sumac glow crimson, and the high-country mountain ash hangs its orange berries — the first sparks of the famous Allegheny autumn that peaks at elevation in early October. The cove forests still hold green in the valleys, weeks behind the high country.
The trees are heavy with the autumn mast that feeds the mountain wildlife: the oaks drop their acorns, the hickories and black walnut shed their nuts, the beech ripens its triangular nuts, and the pawpaw and ripening persimmon draw deer, bears, and turkeys. The tulip tree and birch begin to yellow, the dogwood reddens and sets its scarlet berries for the migrating thrushes, and the dark high-country red spruce holds its evergreen against the brightening hardwoods. The great spectacle of the West Virginia fall is just beginning.
Go deeper with the West Virginia guides
The complete West Virginia birding, native-plant, wildflower, and night-sky guides — or the whole year in one bundle.
Same month elsewhere: September in Wisconsin · September in Wyoming · September in Alabama