60 wildflowers were recorded blooming in Indiana in March in our iNaturalist sample; 13 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in March

Harbinger of Spring

Bloodroot
Virginia Springbeauty
Snow Trillium

Cut-Leaved Toothwort

Dutchman's breeches

Lesser Celandine

Northern Spicebush

Purple Cress

Yellow Trout Lily

Eastern Skunk Cabbage
False Rue Anemone
All wildflowers blooming in Indiana in March
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Harbinger of Spring | Erigenia bulbosa | carrot family | 436 | Mar (peak) |
| 2 | Bloodroot | Sanguinaria canadensis | Poppy Family | 371 | Apr (rising) |
| 3 | Virginia Springbeauty | Claytonia virginica | Pussypaw Family | 342 | Apr (rising) |
| 4 | Snow Trillium | Trillium nivale | Herb-Paris, False Hellebores, Trilliums and allies | 204 | Mar (peak) |
| 5 | Cut-Leaved Toothwort | Cardamine concatenata | mustard family | 144 | Apr (rising) |
| 6 | Dutchman's breeches | Dicentra cucullaria | Poppy Family | 142 | Apr (rising) |
| 7 | Lesser Celandine | Ficaria verna | buttercup family | 120 | Apr (rising) |
| 8 | Northern Spicebush | Lindera benzoin | laurels | 107 | Mar (peak) |
| 9 | Purple Cress | Cardamine douglassii | mustard family | 107 | Mar (peak) |
| 10 | Yellow Trout Lily | Erythronium americanum | lily family | 98 | Apr (rising) |
| 11 | Eastern Skunk Cabbage | Symplocarpus foetidus | Arum Family | 89 | Mar (peak) |
| 12 | False Rue Anemone | Enemion biternatum | buttercup family | 80 | Apr (rising) |
| 13 | Sharp-Lobed Hepatica | Hepatica acutiloba | buttercup family | 80 | Mar (peak) |
| 14 | Virginia bluebells | Mertensia virginica | borage family | 75 | Apr (rising) |
| 15 | Rue Anemone | Thalictrum thalictroides | buttercup family | 63 | Apr (rising) |
| 16 | White Fawnlily | Erythronium albidum | lily family | 55 | Apr (rising) |
| 17 | Red Deadnettle | Lamium purpureum | Mint Family | 43 | Apr (rising) |
| 18 | Siberian squill | Scilla siberica | agave and allies | 40 | Mar (peak) |
| 19 | Ground-Ivy | Glechoma hederacea | Mint Family | 36 | Apr (rising) |
| 20 | Marsh Marigold | Caltha palustris | buttercup family | 35 | Apr (rising) |
| 21 | Common Snowdrop | Galanthus nivalis | amaryllis, onions, and allies | 31 | Mar (peak) |
| 22 | Lesser Periwinkle | Vinca minor | Dogbane Family | 28 | Apr (rising) |
| 23 | Toadshade | Trillium sessile | Herb-Paris, False Hellebores, Trilliums and allies | 24 | Apr (rising) |
| 24 | Hairy Bittercress | Cardamine hirsuta | mustard family | 21 | Mar (peak) |
| 25 | Blue Phlox | Phlox divaricata | phlox family | 21 | Apr (rising) |
| 26 | Yellow Corydalis | Corydalis flavula | Poppy Family | 17 | Mar (peak) |
| 27 | Eastern Leatherwood | Dirca palustris | Stringbarks | 16 | Apr (rising) |
| 28 | Henbit Deadnettle | Lamium amplexicaule | Mint Family | 15 | Apr (rising) |
| 29 | Common Whitlowgrass | Draba verna | mustard family | 14 | Mar (peak) |
| 30 | Callery pear | Pyrus calleryana | rose family | 14 | Apr (rising) |
| 31 | Eastern Redbud | Cercis canadensis | Legumes | 11 | Apr (rising) |
| 32 | Prairie Trillium | Trillium recurvatum | Herb-Paris, False Hellebores, Trilliums and allies | 10 | Apr (rising) |
| 33 | Squirrel Corn | Dicentra canadensis | Poppy Family | 9 | Apr (rising) |
| 34 | Field Penny-Cress | Thlaspi arvense | mustard family | 9 | Apr (rising) |
| 35 | Red Maple | Acer rubrum | soapberry family | 8 | Mar (peak) |
| 36 | Common Serviceberry | Amelanchier arborea | rose family | 8 | Apr (rising) |
| 37 | Bird's-Eye Speedwell | Veronica persica | Plantain Family | 8 | Apr (rising) |
| 38 | American field pansy | Viola rafinesquei | Violet Family | 8 | Apr (rising) |
| 39 | Celandine Poppy | Chelidonium diphyllum | Poppy Family | 8 | Apr (rising) |
| 40 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 7 | Apr (rising) |
| 41 | Common Chickweed | Stellaria media | pink family | 7 | Apr (rising) |
| 42 | Golden Ragwort | Packera aurea | Sunflowers, Daisies, Asters, and Allies | 7 | Apr (rising) |
| 43 | Round-Lobed Hepatica | Hepatica americana | buttercup family | 7 | Apr (rising) |
| 44 | Box Elder | Acer negundo | soapberry family | 6 | Apr (rising) |
| 45 | Azure Bluet | Houstonia caerulea | madder family | 6 | Apr (rising) |
| 46 | Tiny Bluet | Houstonia pusilla | madder family | 6 | Mar (peak) |
| 47 | Star Chickweed | Stellaria pubera | pink family | 6 | Apr (rising) |
| 48 | Smooth Yellow Violet | Viola eriocarpa | Violet Family | 6 | Apr (rising) |
| 49 | Early Meadow-Rue | Thalictrum dioicum | buttercup family | 5 | Apr (rising) |
| 50 | Blue Cohosh | Caulophyllum thalictroides | barberry family | 5 | Apr (rising) |