Wildflowers Blooming in Ohio in May (60 Species)

60 wildflowers were recorded blooming in Ohio in May in our iNaturalist sample; 32 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Feb Mar Apr May Jun Jul Aug Sep Oct Nov

Top wildflowers in May

Large White Trillium1,328 obs.

Red Columbine635 obs.

Wild Geranium571 obs.

Dame's Rocket565 obs.

common star-of-Bethlehem531 obs.

Azure Bluet497 obs.

Miami Mist490 obs.

Jack-in-the-Pulpit422 obs.

Common Pawpaw414 obs.

Blue Phlox308 obs.

Mayapple289 obs.

Virginia Springbeauty268 obs.

All wildflowers blooming in Ohio in May

#	Species	Scientific name	Family	Obs.	Peak in state
1	Large White Trillium	Trillium grandiflorum	Herb-Paris, False Hellebores, Trilliums and allies	1,328	Apr (past peak)
2	Red Columbine	Aquilegia canadensis	buttercup family	635	May (peak)
3	Wild Geranium	Geranium maculatum	Geranium family	571	May (peak)
4	Dame's Rocket	Hesperis matronalis	mustard family	565	May (peak)
5	common star-of-Bethlehem	Ornithogalum umbellatum	agave and allies	531	May (peak)
6	Azure Bluet	Houstonia caerulea	madder family	497	Apr (past peak)
7	Miami Mist	Phacelia purshii	borage family	490	May (peak)
8	Jack-in-the-Pulpit	Arisaema triphyllum	Arum Family	422	May (peak)
9	Common Pawpaw	Asimina triloba	custard-apples	414	Apr (past peak)
10	Blue Phlox	Phlox divaricata	phlox family	308	Apr (past peak)
11	Mayapple	Podophyllum peltatum	barberry family	289	May (peak)
12	Virginia Springbeauty	Claytonia virginica	Pussypaw Family	268	Apr (past peak)
13	Multiflora Rose	Rosa multiflora	rose family	265	May (peak)
14	Flowering Dogwood	Cornus florida	Dogwood family	230	May (peak)
15	Great Waterleaf	Hydrophyllum appendiculatum	borage family	230	May (peak)
16	Virginia waterleaf	Hydrophyllum virginianum	borage family	213	May (peak)
17	Jacob's ladder	Polemonium reptans	phlox family	210	Apr (past peak)
18	Atlantic camas	Camassia scilloides	agave and allies	197	May (peak)
19	Philadelphia fleabane	Erigeron philadelphicus	Sunflowers, Daisies, Asters, and Allies	189	May (peak)
20	golden Alexanders	Zizia aurea	carrot family	189	May (peak)
21	Garlic Mustard	Alliaria petiolata	mustard family	188	Apr (past peak)
22	Drooping Trillium	Trillium flexipes	Herb-Paris, False Hellebores, Trilliums and allies	178	Apr (past peak)
23	Purple Rocket	Iodanthus pinnatifidus	mustard family	177	May (peak)
24	Fire Pink	Silene virginica	pink family	176	May (peak)
25	Red Deadnettle	Lamium purpureum	Mint Family	173	Apr (past peak)
26	Ground-Ivy	Glechoma hederacea	Mint Family	166	Apr (past peak)
27	Catchweed Bedstraw	Galium aparine	madder family	162	May (peak)
28	Amur honeysuckle	Lonicera maackii	honeysuckle family	162	May (peak)
29	Virginia bluebells	Mertensia virginica	borage family	156	Apr (past peak)
30	Creeping Foamflower	Tiarella stolonifera	saxifrage family	152	May (peak)
31	Butterweed	Packera glabella	Sunflowers, Daisies, Asters, and Allies	150	May (peak)
32	Red Trillium	Trillium erectum	Herb-Paris, False Hellebores, Trilliums and allies	148	Apr (past peak)
33	Toadshade	Trillium sessile	Herb-Paris, False Hellebores, Trilliums and allies	145	Apr (past peak)
34	Tall Blue Wild Indigo	Baptisia australis	Legumes	144	May (peak)
35	American bladdernut	Staphylea trifolia	bladdernut family	123	Apr (past peak)
36	Small White Lady's-Slipper	Cypripedium candidum	Orchids	122	May (peak)
37	Autumn Olive	Elaeagnus umbellata	oleaster family	122	May (peak)
38	Rue Anemone	Thalictrum thalictroides	buttercup family	121	Apr (past peak)
39	Mock Strawberry	Potentilla indica	rose family	115	May (peak)
40	American tuliptree	Liriodendron tulipifera	magnolia family	103	May (peak)
41	Golden Ragwort	Packera aurea	Sunflowers, Daisies, Asters, and Allies	103	May (peak)
42	Cream Violet	Viola striata	Violet Family	98	Apr (past peak)
43	Carpet Bugle	Ajuga reptans	Mint Family	97	May (peak)
44	Solomon's plume	Maianthemum racemosum	agave and allies	96	May (peak)
45	Poison Hemlock	Conium maculatum	carrot family	92	Jun (rising)
46	Guyandotte beauty	Synandra hispidula	Mint Family	90	May (peak)
47	Pink Lady's Slipper	Cypripedium acaule	Orchids	89	May (peak)
48	Canada Violet	Viola canadensis	Violet Family	86	Apr (past peak)
49	American cancer-root	Conopholis americana	broomrape family	85	May (peak)
50	Virginia strawberry	Fragaria virginiana	rose family	83	May (peak)