60 wildflowers were recorded blooming in South Carolina in October in our iNaturalist sample; 10 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in October

Blue Mistflower
Blue Curls

Ghost Pipe

Asiatic dayflower
Groundsel Tree

Largeleaf Pennywort

Low Smartweed

Spotted Horsemint
Cardinal Flower

Autumn Clematis

Common Jewelweed

Camphorweed
All wildflowers blooming in South Carolina in October
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Blue Mistflower | Conoclinium coelestinum | Sunflowers, Daisies, Asters, and Allies | 49 | Oct (peak) |
| 2 | Blue Curls | Trichostema dichotomum | Mint Family | 22 | Sep (past peak) |
| 3 | Ghost Pipe | Monotropa uniflora | heath family | 19 | Oct (peak) |
| 4 | Asiatic dayflower | Commelina communis | Spiderworts | 16 | Aug (past peak) |
| 5 | Groundsel Tree | Baccharis halimifolia | Sunflowers, Daisies, Asters, and Allies | 15 | Oct (peak) |
| 6 | Largeleaf Pennywort | Hydrocotyle bonariensis | ivy family | 14 | May (past peak) |
| 7 | Low Smartweed | Persicaria longiseta | knotweed family | 12 | Oct (peak) |
| 8 | Spotted Horsemint | Monarda punctata | Mint Family | 10 | Sep (past peak) |
| 9 | Cardinal Flower | Lobelia cardinalis | bellflower family | 9 | Sep (past peak) |
| 10 | Autumn Clematis | Clematis terniflora | buttercup family | 9 | Aug (past peak) |
| 11 | Common Jewelweed | Impatiens capensis | balsam family | 7 | Sep (past peak) |
| 12 | Camphorweed | Heterotheca subaxillaris | Sunflowers, Daisies, Asters, and Allies | 6 | Sep (past peak) |
| 13 | White beggarticks | Bidens alba | Sunflowers, Daisies, Asters, and Allies | 6 | Sep (past peak) |
| 14 | American white waterlily | Nymphaea odorata | Waterlily Family | 5 | Apr (past peak) |
| 15 | Purple Passionflower | Passiflora incarnata | Passionfruit Family | 5 | May (past peak) |
| 16 | White Snakeroot | Ageratina altissima | Sunflowers, Daisies, Asters, and Allies | 5 | Oct (peak) |
| 17 | Frost Aster | Symphyotrichum pilosum | Sunflowers, Daisies, Asters, and Allies | 5 | Oct (peak) |
| 18 | St. Andrew's cross | Hypericum hypericoides | St. John's wort family | 4 | Aug (past peak) |
| 19 | Asian mazus | Mazus pumilus | mazus family | 4 | Mar (past peak) |
| 20 | Tievine | Ipomoea cordatotriloba | bindweed family | 4 | Sep (past peak) |
| 21 | Sweet Everlasting | Pseudognaphalium obtusifolium | Sunflowers, Daisies, Asters, and Allies | 4 | Sep (past peak) |
| 22 | Firewheel | Gaillardia pulchella | Sunflowers, Daisies, Asters, and Allies | 3 | Aug (past peak) |
| 23 | Pickerelweed | Pontederia cordata | Pickerelweeds | 3 | Jun (past peak) |
| 24 | Carolina horsenettle | Solanum carolinense | nightshade family | 3 | May (past peak) |
| 25 | White Turtlehead | Chelone glabra | Plantain Family | 3 | Sep (past peak) |
| 26 | Cutleaf Coneflower | Rudbeckia laciniata | Sunflowers, Daisies, Asters, and Allies | 3 | Sep (past peak) |
| 27 | Downy Lobelia | Lobelia puberula | bellflower family | 3 | Sep (past peak) |
| 28 | American groundnut | Apios americana | Legumes | 3 | Aug (past peak) |
| 29 | Spurge Nettle | Cnidoscolus stimulosus | Spurge Family | 3 | May (past peak) |
| 30 | Arrow-Leaved Tearthumb | Persicaria sagittata | knotweed family | 3 | Oct (peak) |
| 31 | Trailing Fuzzy-Bean | Strophostyles helvola | Legumes | 3 | Sep (past peak) |
| 32 | Broadleaf Arrowhead | Sagittaria latifolia | Water-Plantain family | 2 | Sep (past peak) |
| 33 | Common Morning-Glory | Ipomoea purpurea | bindweed family | 2 | Aug (past peak) |
| 34 | Whitemouth Dayflower | Commelina erecta | Spiderworts | 2 | Jun (past peak) |
| 35 | Turkey Tangle Frogfruit | Phyla nodiflora | Verbena Family | 2 | Aug (past peak) |
| 36 | black-eyed Susan | Rudbeckia hirta | Sunflowers, Daisies, Asters, and Allies | 2 | Jun (past peak) |
| 37 | Cross Vine | Bignonia capreolata | bignonia family | 2 | Apr (past peak) |
| 38 | Japanese honeysuckle | Lonicera japonica | honeysuckle family | 2 | Apr (past peak) |
| 39 | Partridgeberry | Mitchella repens | madder family | 2 | Apr (past peak) |
| 40 | Straggler Daisy | Calyptocarpus vialis | Sunflowers, Daisies, Asters, and Allies | 2 | Sep (past peak) |
| 41 | American hog-peanut | Amphicarpaea bracteata | Legumes | 2 | Sep (past peak) |
| 42 | Fall Phlox | Phlox paniculata | phlox family | 2 | Oct (peak) |
| 43 | Common Boneset | Eupatorium perfoliatum | Sunflowers, Daisies, Asters, and Allies | 2 | Oct (peak) |
| 44 | Climbing Hempvine | Mikania scandens | Sunflowers, Daisies, Asters, and Allies | 2 | Sep (past peak) |
| 45 | Leafy Elephant's-Foot | Elephantopus carolinianus | Sunflowers, Daisies, Asters, and Allies | 2 | Sep (past peak) |
| 46 | Bluestem Goldenrod | Solidago caesia | Sunflowers, Daisies, Asters, and Allies | 2 | Sep (past peak) |
| 47 | Turk's cap | Malvaviscus arboreus | Mallow and Hibiscus Family | 2 | Sep (past peak) |
| 48 | Calico Aster | Symphyotrichum lateriflorum | Sunflowers, Daisies, Asters, and Allies | 2 | Oct (peak) |
| 49 | Crowpoison | Nothoscordum bivalve | amaryllis, onions, and allies | 2 | Mar (past peak) |
| 50 | Oriental false hawksbeard | Youngia japonica | Sunflowers, Daisies, Asters, and Allies | 2 | Mar (past peak) |