51 wildflowers were recorded blooming in New York in December in our iNaturalist sample; 1 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in December

Common Groundsel

White Snakeroot

American Witch-Hazel

Northern Seaside Goldenrod

Field madder

Frost Aster

Dwarf Mallow

Common Dandelion

Tall Goldenrod

New England aster

Common Blue Wood Aster
Redstem Stork's-bill
All wildflowers blooming in New York in December
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Common Groundsel | Senecio vulgaris | Sunflowers, Daisies, Asters, and Allies | 27 | Apr (past peak) |
| 2 | White Snakeroot | Ageratina altissima | Sunflowers, Daisies, Asters, and Allies | 24 | Oct (past peak) |
| 3 | American Witch-Hazel | Hamamelis virginiana | witch-hazel family | 19 | Oct (past peak) |
| 4 | Northern Seaside Goldenrod | Solidago sempervirens | Sunflowers, Daisies, Asters, and Allies | 17 | Oct (past peak) |
| 5 | Field madder | Sherardia arvensis | madder family | 13 | Dec (peak) |
| 6 | Frost Aster | Symphyotrichum pilosum | Sunflowers, Daisies, Asters, and Allies | 11 | Oct (past peak) |
| 7 | Dwarf Mallow | Malva neglecta | Mallow and Hibiscus Family | 8 | Jun (past peak) |
| 8 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 7 | Apr (past peak) |
| 9 | Tall Goldenrod | Solidago altissima | Sunflowers, Daisies, Asters, and Allies | 6 | Sep (past peak) |
| 10 | New England aster | Symphyotrichum novae-angliae | Sunflowers, Daisies, Asters, and Allies | 6 | Sep (past peak) |
| 11 | Common Blue Wood Aster | Symphyotrichum cordifolium | Sunflowers, Daisies, Asters, and Allies | 5 | Oct (past peak) |
| 12 | Redstem Stork's-bill | Erodium cicutarium | Geranium family | 3 | Apr (past peak) |
| 13 | Red Clover | Trifolium pratense | Legumes | 3 | Jun (past peak) |
| 14 | Lesser Periwinkle | Vinca minor | Dogbane Family | 3 | Apr (past peak) |
| 15 | Shepherd's-Purse | Capsella bursa-pastoris | mustard family | 3 | Apr (past peak) |
| 16 | Shaggy Soldier | Galinsoga quadriradiata | Sunflowers, Daisies, Asters, and Allies | 3 | Jul (past peak) |
| 17 | Low Smartweed | Persicaria longiseta | knotweed family | 3 | Oct (past peak) |
| 18 | Lawn daisy | Bellis perennis | Sunflowers, Daisies, Asters, and Allies | 2 | May (past peak) |
| 19 | White Clover | Trifolium repens | Legumes | 2 | Jun (past peak) |
| 20 | Thyme-Leaved Speedwell | Veronica serpyllifolia | Plantain Family | 2 | May (past peak) |
| 21 | Annual Honesty | Lunaria annua | mustard family | 2 | May (past peak) |
| 22 | Black Medick | Medicago lupulina | Legumes | 2 | Jun (past peak) |
| 23 | Autumn Clematis | Clematis terniflora | buttercup family | 2 | Sep (past peak) |
| 24 | Annual Fleabane | Erigeron annuus | Sunflowers, Daisies, Asters, and Allies | 2 | Jun (past peak) |
| 25 | Bluestem Goldenrod | Solidago caesia | Sunflowers, Daisies, Asters, and Allies | 2 | Sep (past peak) |
| 26 | Box Elder | Acer negundo | soapberry family | 1 | Apr (past peak) |
| 27 | Northern Blue Flag | Iris versicolor | iris family | 1 | Jun (past peak) |
| 28 | Red Columbine | Aquilegia canadensis | buttercup family | 1 | May (past peak) |
| 29 | Firewheel | Gaillardia pulchella | Sunflowers, Daisies, Asters, and Allies | 1 | Oct (past peak) |
| 30 | Common Yarrow | Achillea millefolium | Sunflowers, Daisies, Asters, and Allies | 1 | Jul (past peak) |
| 31 | Late Boneset | Eupatorium serotinum | Sunflowers, Daisies, Asters, and Allies | 1 | Sep (past peak) |
| 32 | Henbit Deadnettle | Lamium amplexicaule | Mint Family | 1 | Apr (past peak) |
| 33 | Red Deadnettle | Lamium purpureum | Mint Family | 1 | Apr (past peak) |
| 34 | Herb Robert | Geranium robertianum | Geranium family | 1 | Jun (past peak) |
| 35 | Common Tansy | Tanacetum vulgare | Sunflowers, Daisies, Asters, and Allies | 1 | Aug (past peak) |
| 36 | Purple Loosestrife | Lythrum salicaria | lythrum family | 1 | Aug (past peak) |
| 37 | Indian tobacco | Lobelia inflata | bellflower family | 1 | Aug (past peak) |
| 38 | Deptford pink | Dianthus armeria | pink family | 1 | Jul (past peak) |
| 39 | Wild Carrot | Daucus carota | carrot family | 1 | Jul (past peak) |
| 40 | Japanese honeysuckle | Lonicera japonica | honeysuckle family | 1 | Jun (past peak) |
| 41 | White Campion | Silene latifolia | pink family | 1 | Jun (past peak) |
| 42 | Field Penny-Cress | Thlaspi arvense | mustard family | 1 | Apr (past peak) |
| 43 | golden Alexanders | Zizia aurea | carrot family | 1 | May (past peak) |
| 44 | Groundsel Tree | Baccharis halimifolia | Sunflowers, Daisies, Asters, and Allies | 1 | Oct (past peak) |
| 45 | Princess Tree | Paulownia tomentosa | foxglove tree family | 1 | May (past peak) |
| 46 | Whorled Wood Aster | Oclemena acuminata | Sunflowers, Daisies, Asters, and Allies | 1 | Sep (past peak) |
| 47 | Purple Crownvetch | Securigera varia | Legumes | 1 | Jun (past peak) |
| 48 | Carolina rose | Rosa carolina | rose family | 1 | Jun (past peak) |
| 49 | Silverrod | Solidago bicolor | Sunflowers, Daisies, Asters, and Allies | 1 | Sep (past peak) |
| 50 | Mock Strawberry | Potentilla indica | rose family | 1 | May (past peak) |