60 wildflowers were recorded blooming in Kentucky in October in our iNaturalist sample; 9 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in October

White Snakeroot

Blue Mistflower

Great Blue Lobelia
Chicory
Bluestem Goldenrod

New England aster
Fall Phlox

Common Blue Wood Aster

Common Jewelweed
Wingstem

Broad-Leaved Goldenrod

Frost Aster
All wildflowers blooming in Kentucky in October
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | White Snakeroot | Ageratina altissima | Sunflowers, Daisies, Asters, and Allies | 154 | Sep (past peak) |
| 2 | Blue Mistflower | Conoclinium coelestinum | Sunflowers, Daisies, Asters, and Allies | 87 | Sep (past peak) |
| 3 | Great Blue Lobelia | Lobelia siphilitica | bellflower family | 59 | Sep (past peak) |
| 4 | Chicory | Cichorium intybus | Sunflowers, Daisies, Asters, and Allies | 44 | Jul (past peak) |
| 5 | Bluestem Goldenrod | Solidago caesia | Sunflowers, Daisies, Asters, and Allies | 44 | Oct (peak) |
| 6 | New England aster | Symphyotrichum novae-angliae | Sunflowers, Daisies, Asters, and Allies | 39 | Sep (past peak) |
| 7 | Fall Phlox | Phlox paniculata | phlox family | 35 | Oct (peak) |
| 8 | Common Blue Wood Aster | Symphyotrichum cordifolium | Sunflowers, Daisies, Asters, and Allies | 24 | Oct (peak) |
| 9 | Common Jewelweed | Impatiens capensis | balsam family | 22 | Sep (past peak) |
| 10 | Wingstem | Verbesina alternifolia | Sunflowers, Daisies, Asters, and Allies | 21 | Sep (past peak) |
| 11 | Broad-Leaved Goldenrod | Solidago flexicaulis | Sunflowers, Daisies, Asters, and Allies | 21 | Oct (peak) |
| 12 | Frost Aster | Symphyotrichum pilosum | Sunflowers, Daisies, Asters, and Allies | 18 | Oct (peak) |
| 13 | Frostweed | Verbesina virginica | Sunflowers, Daisies, Asters, and Allies | 17 | Sep (past peak) |
| 14 | American Witch-Hazel | Hamamelis virginiana | witch-hazel family | 16 | Oct (peak) |
| 15 | Asiatic dayflower | Commelina communis | Spiderworts | 16 | Sep (past peak) |
| 16 | Wild Carrot | Daucus carota | carrot family | 16 | Jul (past peak) |
| 17 | Jimsonweed | Datura stramonium | nightshade family | 15 | Aug (past peak) |
| 18 | Shaggy Soldier | Galinsoga quadriradiata | Sunflowers, Daisies, Asters, and Allies | 14 | Jul (past peak) |
| 19 | White Morning-glory | Ipomoea lacunosa | bindweed family | 14 | Sep (past peak) |
| 20 | Common Morning-Glory | Ipomoea purpurea | bindweed family | 13 | Sep (past peak) |
| 21 | Common Selfheal | Prunella vulgaris | Mint Family | 12 | Jul (past peak) |
| 22 | Nodding Beggarticks | Bidens cernua | Sunflowers, Daisies, Asters, and Allies | 12 | Sep (past peak) |
| 23 | Downy Lobelia | Lobelia puberula | bellflower family | 12 | Sep (past peak) |
| 24 | Sweet Everlasting | Pseudognaphalium obtusifolium | Sunflowers, Daisies, Asters, and Allies | 12 | Sep (past peak) |
| 25 | Late Boneset | Eupatorium serotinum | Sunflowers, Daisies, Asters, and Allies | 11 | Sep (past peak) |
| 26 | False Daisy | Eclipta prostrata | Sunflowers, Daisies, Asters, and Allies | 11 | Sep (past peak) |
| 27 | Low Smartweed | Persicaria longiseta | knotweed family | 11 | Sep (past peak) |
| 28 | Tall Goldenrod | Solidago altissima | Sunflowers, Daisies, Asters, and Allies | 10 | Sep (past peak) |
| 29 | Cardinal Flower | Lobelia cardinalis | bellflower family | 8 | Aug (past peak) |
| 30 | Purple Passionflower | Passiflora incarnata | Passionfruit Family | 8 | Aug (past peak) |
| 31 | White Turtlehead | Chelone glabra | Plantain Family | 8 | Sep (past peak) |
| 32 | American pokeweed | Phytolacca americana | Pokeweed Family | 7 | Jul (past peak) |
| 33 | Red Clover | Trifolium pratense | Legumes | 7 | May (past peak) |
| 34 | Common Sneezeweed | Helenium autumnale | Sunflowers, Daisies, Asters, and Allies | 7 | Sep (past peak) |
| 35 | Japanese honeysuckle | Lonicera japonica | honeysuckle family | 7 | May (past peak) |
| 36 | White Campion | Silene latifolia | pink family | 7 | May (past peak) |
| 37 | Obedient Plant | Physostegia virginiana | Mint Family | 6 | Sep (past peak) |
| 38 | American burnweed | Erechtites hieraciifolius | Sunflowers, Daisies, Asters, and Allies | 6 | Sep (past peak) |
| 39 | Buttonweed | Diodia virginiana | madder family | 6 | Jul (past peak) |
| 40 | brown-eyed Susan | Rudbeckia triloba | Sunflowers, Daisies, Asters, and Allies | 6 | Aug (past peak) |
| 41 | Tall Bellflower | Campanulastrum americanum | bellflower family | 6 | Jul (past peak) |
| 42 | Carolina horsenettle | Solanum carolinense | nightshade family | 5 | Jun (past peak) |
| 43 | Calico Aster | Symphyotrichum lateriflorum | Sunflowers, Daisies, Asters, and Allies | 5 | Oct (peak) |
| 44 | Partridge Pea | Chamaecrista fasciculata | Legumes | 5 | Sep (past peak) |
| 45 | Bull Thistle | Cirsium vulgare | Sunflowers, Daisies, Asters, and Allies | 4 | Oct (peak) |
| 46 | Common Sunflower | Helianthus annuus | Sunflowers, Daisies, Asters, and Allies | 4 | Oct (peak) |
| 47 | Common Boneset | Eupatorium perfoliatum | Sunflowers, Daisies, Asters, and Allies | 4 | Aug (past peak) |
| 48 | Coral Honeysuckle | Lonicera sempervirens | honeysuckle family | 4 | Apr (past peak) |
| 49 | Crowpoison | Nothoscordum bivalve | amaryllis, onions, and allies | 4 | Apr (past peak) |
| 50 | American jumpseed | Persicaria virginiana | knotweed family | 4 | Aug (past peak) |