60 wildflowers were recorded blooming in Delaware in April in our iNaturalist sample; 41 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in April
Virginia Springbeauty

Yellow Trout Lily

Virginia bluebells

Lesser Celandine

Red Deadnettle

Bloodroot

Cut-Leaved Toothwort
Garlic Mustard

Ground-Ivy

Rue Anemone

Henbit Deadnettle

Small-Flowered Buttercup
All wildflowers blooming in Delaware in April
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Virginia Springbeauty | Claytonia virginica | Pussypaw Family | 292 | Apr (peak) |
| 2 | Yellow Trout Lily | Erythronium americanum | lily family | 164 | Apr (peak) |
| 3 | Virginia bluebells | Mertensia virginica | borage family | 135 | Apr (peak) |
| 4 | Lesser Celandine | Ficaria verna | buttercup family | 104 | Mar (past peak) |
| 5 | Red Deadnettle | Lamium purpureum | Mint Family | 101 | Apr (peak) |
| 6 | Bloodroot | Sanguinaria canadensis | Poppy Family | 100 | Apr (peak) |
| 7 | Cut-Leaved Toothwort | Cardamine concatenata | mustard family | 98 | Apr (peak) |
| 8 | Garlic Mustard | Alliaria petiolata | mustard family | 90 | Apr (peak) |
| 9 | Ground-Ivy | Glechoma hederacea | Mint Family | 81 | Apr (peak) |
| 10 | Rue Anemone | Thalictrum thalictroides | buttercup family | 68 | Apr (peak) |
| 11 | Henbit Deadnettle | Lamium amplexicaule | Mint Family | 48 | Apr (peak) |
| 12 | Small-Flowered Buttercup | Ranunculus abortivus | buttercup family | 44 | Apr (peak) |
| 13 | Annual Honesty | Lunaria annua | mustard family | 41 | Apr (peak) |
| 14 | Eastern Redbud | Cercis canadensis | Legumes | 40 | Apr (peak) |
| 15 | Dwarf Ginseng | Panax trifolius | ivy family | 40 | Apr (peak) |
| 16 | Large White Trillium | Trillium grandiflorum | Herb-Paris, False Hellebores, Trilliums and allies | 37 | Apr (peak) |
| 17 | Mock Strawberry | Potentilla indica | rose family | 36 | Apr (peak) |
| 18 | Dutchman's breeches | Dicentra cucullaria | Poppy Family | 35 | Apr (peak) |
| 19 | Dove's-foot crane's-bill | Geranium molle | Geranium family | 33 | Apr (peak) |
| 20 | Bird's-Eye Speedwell | Veronica persica | Plantain Family | 33 | Apr (peak) |
| 21 | common star-of-Bethlehem | Ornithogalum umbellatum | agave and allies | 32 | May (rising) |
| 22 | American field pansy | Viola rafinesquei | Violet Family | 31 | Apr (peak) |
| 23 | Wood Anemone | Anemonoides quinquefolia | buttercup family | 29 | Apr (peak) |
| 24 | European field pansy | Viola arvensis | Violet Family | 28 | Apr (peak) |
| 25 | Beach Plum | Prunus maritima | rose family | 26 | Apr (peak) |
| 26 | Autumn Olive | Elaeagnus umbellata | oleaster family | 25 | Apr (peak) |
| 27 | Canada toadflax | Linaria canadensis | Plantain Family | 25 | May (rising) |
| 28 | Mayapple | Podophyllum peltatum | barberry family | 24 | May (rising) |
| 29 | Jacob's ladder | Polemonium reptans | phlox family | 24 | Apr (peak) |
| 30 | Northern Spicebush | Lindera benzoin | laurels | 23 | Apr (peak) |
| 31 | Azure Bluet | Houstonia caerulea | madder family | 21 | Apr (peak) |
| 32 | Tiny Bluet | Houstonia pusilla | madder family | 21 | Apr (peak) |
| 33 | Virginia saxifrage | Micranthes virginiensis | saxifrage family | 21 | Apr (peak) |
| 34 | Celandine Poppy | Chelidonium diphyllum | Poppy Family | 21 | Apr (peak) |
| 35 | Hairy Bittercress | Cardamine hirsuta | mustard family | 18 | Mar (past peak) |
| 36 | Smooth Yellow Violet | Viola eriocarpa | Violet Family | 18 | Apr (peak) |
| 37 | Pink Lady's Slipper | Cypripedium acaule | Orchids | 15 | May (rising) |
| 38 | Golden Ragwort | Packera aurea | Sunflowers, Daisies, Asters, and Allies | 14 | Apr (peak) |
| 39 | Jetbead | Rhodotypos scandens | rose family | 14 | Apr (peak) |
| 40 | Redstem Stork's-bill | Erodium cicutarium | Geranium family | 13 | Apr (peak) |
| 41 | Common Pawpaw | Asimina triloba | custard-apples | 13 | Apr (peak) |
| 42 | Flowering Dogwood | Cornus florida | Dogwood family | 13 | Apr (peak) |
| 43 | Jack-in-the-Pulpit | Arisaema triphyllum | Arum Family | 12 | Apr (peak) |
| 44 | Round-Lobed Hepatica | Hepatica americana | buttercup family | 12 | Apr (peak) |
| 45 | Showy Orchis | Galearis spectabilis | Orchids | 11 | May (rising) |
| 46 | Blue Phlox | Phlox divaricata | phlox family | 10 | Apr (peak) |
| 47 | Field madder | Sherardia arvensis | madder family | 9 | May (rising) |
| 48 | Wild Geranium | Geranium maculatum | Geranium family | 9 | May (rising) |
| 49 | Red Columbine | Aquilegia canadensis | buttercup family | 9 | Apr (peak) |
| 50 | Red Trillium | Trillium erectum | Herb-Paris, False Hellebores, Trilliums and allies | 9 | Apr (peak) |