60 wildflowers were recorded blooming in District of Columbia in April in our iNaturalist sample; 42 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 bluebells

Common Pawpaw
Jetbead

Lesser Celandine
Virginia Springbeauty
Garlic Mustard

Yellow Trout Lily

Amur honeysuckle

Red Deadnettle

Incised Fumewort

Mayapple

Ground-Ivy
All wildflowers blooming in District of Columbia in April
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Virginia bluebells | Mertensia virginica | borage family | 142 | Apr (peak) |
| 2 | Common Pawpaw | Asimina triloba | custard-apples | 123 | Apr (peak) |
| 3 | Jetbead | Rhodotypos scandens | rose family | 111 | Apr (peak) |
| 4 | Lesser Celandine | Ficaria verna | buttercup family | 104 | Mar (past peak) |
| 5 | Virginia Springbeauty | Claytonia virginica | Pussypaw Family | 103 | Apr (peak) |
| 6 | Garlic Mustard | Alliaria petiolata | mustard family | 91 | Apr (peak) |
| 7 | Yellow Trout Lily | Erythronium americanum | lily family | 68 | Apr (peak) |
| 8 | Amur honeysuckle | Lonicera maackii | honeysuckle family | 59 | Apr (peak) |
| 9 | Red Deadnettle | Lamium purpureum | Mint Family | 50 | Apr (peak) |
| 10 | Incised Fumewort | Corydalis incisa | Poppy Family | 44 | Apr (peak) |
| 11 | Mayapple | Podophyllum peltatum | barberry family | 43 | Apr (peak) |
| 12 | Ground-Ivy | Glechoma hederacea | Mint Family | 38 | Apr (peak) |
| 13 | Catchweed Bedstraw | Galium aparine | madder family | 36 | Apr (peak) |
| 14 | Dutchman's breeches | Dicentra cucullaria | Poppy Family | 34 | Apr (peak) |
| 15 | Annual Honesty | Lunaria annua | mustard family | 29 | Apr (peak) |
| 16 | common star-of-Bethlehem | Ornithogalum umbellatum | agave and allies | 29 | Apr (peak) |
| 17 | Bloodroot | Sanguinaria canadensis | Poppy Family | 28 | Mar (past peak) |
| 18 | Bird's-Eye Speedwell | Veronica persica | Plantain Family | 25 | Mar (past peak) |
| 19 | Star Chickweed | Stellaria pubera | pink family | 25 | Apr (peak) |
| 20 | American tuliptree | Liriodendron tulipifera | magnolia family | 24 | Apr (peak) |
| 21 | Cut-Leaved Toothwort | Cardamine concatenata | mustard family | 24 | Mar (past peak) |
| 22 | Mock Strawberry | Potentilla indica | rose family | 23 | Apr (peak) |
| 23 | Golden Ragwort | Packera aurea | Sunflowers, Daisies, Asters, and Allies | 20 | Apr (peak) |
| 24 | American bladdernut | Staphylea trifolia | bladdernut family | 20 | Apr (peak) |
| 25 | Common Vetch | Vicia sativa | Legumes | 19 | Apr (peak) |
| 26 | Henbit Deadnettle | Lamium amplexicaule | Mint Family | 19 | Mar (past peak) |
| 27 | Azure Bluet | Houstonia caerulea | madder family | 19 | Apr (peak) |
| 28 | Eastern Redbud | Cercis canadensis | Legumes | 17 | Apr (peak) |
| 29 | Jack-in-the-Pulpit | Arisaema triphyllum | Arum Family | 16 | Apr (peak) |
| 30 | White Clover | Trifolium repens | Legumes | 14 | May (rising) |
| 31 | Flowering Dogwood | Cornus florida | Dogwood family | 13 | Apr (peak) |
| 32 | Virginia saxifrage | Micranthes virginiensis | saxifrage family | 13 | Apr (peak) |
| 33 | Common Dandelion | Taraxacum officinale | Sunflowers, Daisies, Asters, and Allies | 12 | Apr (peak) |
| 34 | Red Columbine | Aquilegia canadensis | buttercup family | 12 | Apr (peak) |
| 35 | Blackhaw | Viburnum prunifolium | elder family | 12 | Apr (peak) |
| 36 | Large White Trillium | Trillium grandiflorum | Herb-Paris, False Hellebores, Trilliums and allies | 11 | Apr (peak) |
| 37 | Lesser Periwinkle | Vinca minor | Dogbane Family | 11 | Mar (past peak) |
| 38 | Black Medick | Medicago lupulina | Legumes | 11 | Apr (peak) |
| 39 | Multiflora Rose | Rosa multiflora | rose family | 11 | May (rising) |
| 40 | Winged Euonymus | Euonymus alatus | staff-vine family | 11 | Apr (peak) |
| 41 | Little Sweet Betsy | Trillium cuneatum | Herb-Paris, False Hellebores, Trilliums and allies | 11 | Apr (peak) |
| 42 | Thyme-Leaved Speedwell | Veronica serpyllifolia | Plantain Family | 10 | Apr (peak) |
| 43 | Princess Tree | Paulownia tomentosa | foxglove tree family | 10 | Apr (peak) |
| 44 | Yellow Wakerobin | Trillium luteum | Herb-Paris, False Hellebores, Trilliums and allies | 9 | Apr (peak) |
| 45 | Small-Flowered Buttercup | Ranunculus abortivus | buttercup family | 9 | Apr (peak) |
| 46 | Sassafras | Sassafras albidum | laurels | 8 | Apr (peak) |
| 47 | Black Cherry | Prunus serotina | rose family | 8 | Apr (peak) |
| 48 | Black Locust | Robinia pseudoacacia | Legumes | 8 | Apr (peak) |
| 49 | Dwarf Mallow | Malva neglecta | Mallow and Hibiscus Family | 8 | Apr (peak) |
| 50 | Rue Anemone | Thalictrum thalictroides | buttercup family | 8 | Apr (peak) |