26 wildflowers were recorded blooming in Connecticut in March in our iNaturalist sample; 2 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in March

Eastern Skunk Cabbage

Lesser Celandine
Common Snowdrop

Lesser Periwinkle

Common Whitlowgrass

Colt's-Foot

Hairy Bittercress

Bloodroot

Red Deadnettle

Red Maple

Round-Lobed Hepatica

Northern Spicebush
All wildflowers blooming in Connecticut in March
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Eastern Skunk Cabbage | Symplocarpus foetidus | Arum Family | 115 | Mar (peak) |
| 2 | Lesser Celandine | Ficaria verna | buttercup family | 33 | Apr (rising) |
| 3 | Common Snowdrop | Galanthus nivalis | amaryllis, onions, and allies | 19 | Apr (rising) |
| 4 | Lesser Periwinkle | Vinca minor | Dogbane Family | 17 | Apr (rising) |
| 5 | Common Whitlowgrass | Draba verna | mustard family | 13 | Apr (rising) |
| 6 | Colt's-Foot | Tussilago farfara | Sunflowers, Daisies, Asters, and Allies | 12 | Apr (rising) |
| 7 | Hairy Bittercress | Cardamine hirsuta | mustard family | 11 | Apr (rising) |
| 8 | Bloodroot | Sanguinaria canadensis | Poppy Family | 9 | Apr (rising) |
| 9 | Red Deadnettle | Lamium purpureum | Mint Family | 9 | Apr (rising) |
| 10 | Red Maple | Acer rubrum | soapberry family | 7 | Apr (rising) |
| 11 | Round-Lobed Hepatica | Hepatica americana | buttercup family | 5 | Apr (rising) |
| 12 | Northern Spicebush | Lindera benzoin | laurels | 4 | Apr (rising) |
| 13 | Marsh Marigold | Caltha palustris | buttercup family | 4 | Apr (rising) |
| 14 | Virginia Springbeauty | Claytonia virginica | Pussypaw Family | 4 | Apr (rising) |
| 15 | Siberian squill | Scilla siberica | agave and allies | 4 | Apr (rising) |
| 16 | Dutchman's breeches | Dicentra cucullaria | Poppy Family | 3 | Apr (rising) |
| 17 | Trailing Arbutus | Epigaea repens | heath family | 3 | Apr (rising) |
| 18 | Common Groundsel | Senecio vulgaris | Sunflowers, Daisies, Asters, and Allies | 2 | Mar (peak) |
| 19 | Bird's-Eye Speedwell | Veronica persica | Plantain Family | 2 | Apr (rising) |
| 20 | Ground-Ivy | Glechoma hederacea | Mint Family | 2 | Apr (rising) |
| 21 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 1 | Apr (rising) |
| 22 | Yellow Trout Lily | Erythronium americanum | lily family | 1 | Apr (rising) |
| 23 | Germander Speedwell | Veronica chamaedrys | Plantain Family | 1 | May (rising) |
| 24 | Common Chickweed | Stellaria media | pink family | 1 | Apr (rising) |
| 25 | Shepherd's-Purse | Capsella bursa-pastoris | mustard family | 1 | Apr (rising) |
| 26 | Rue Anemone | Thalictrum thalictroides | buttercup family | 1 | Apr (rising) |