Wildflowers Blooming in Connecticut in May (60 Species)

60 wildflowers were recorded blooming in Connecticut in May in our iNaturalist sample; 36 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Mar Apr May Jun Jul Aug Sep Oct

Top wildflowers in May

Pink Lady's Slipper392 obs.

Azure Bluet352 obs.

Wild Geranium346 obs.

Northern Starflower303 obs.

Autumn Olive281 obs.

Red Trillium272 obs.

Wood Anemone166 obs.

common star-of-Bethlehem164 obs.

Canada mayflower159 obs.

Red Columbine142 obs.

Garlic Mustard137 obs.

Dwarf Ginseng136 obs.

All wildflowers blooming in Connecticut in May

#	Species	Scientific name	Family	Obs.	Peak in state
1	Pink Lady's Slipper	Cypripedium acaule	Orchids	392	May (peak)
2	Azure Bluet	Houstonia caerulea	madder family	352	May (peak)
3	Wild Geranium	Geranium maculatum	Geranium family	346	May (peak)
4	Northern Starflower	Lysimachia borealis	primrose family	303	May (peak)
5	Autumn Olive	Elaeagnus umbellata	oleaster family	281	May (peak)
6	Red Trillium	Trillium erectum	Herb-Paris, False Hellebores, Trilliums and allies	272	Apr (past peak)
7	Wood Anemone	Anemonoides quinquefolia	buttercup family	166	Apr (past peak)
8	common star-of-Bethlehem	Ornithogalum umbellatum	agave and allies	164	May (peak)
9	Canada mayflower	Maianthemum canadense	agave and allies	159	May (peak)
10	Red Columbine	Aquilegia canadensis	buttercup family	142	May (peak)
11	Garlic Mustard	Alliaria petiolata	mustard family	137	May (peak)
12	Dwarf Ginseng	Panax trifolius	ivy family	136	May (peak)
13	Greater celandine	Chelidonium majus	Poppy Family	130	May (peak)
14	Fringed Polygala	Polygaloides paucifolia	milkworts	97	May (peak)
15	Narrow-Leaved Bittercress	Cardamine impatiens	mustard family	86	May (peak)
16	Jack-in-the-Pulpit	Arisaema triphyllum	Arum Family	84	May (peak)
17	Dame's Rocket	Hesperis matronalis	mustard family	80	May (peak)
18	Black Cherry	Prunus serotina	rose family	76	May (peak)
19	Yellow Star Grass	Hypoxis hirsuta	Stargrasses and allies	76	May (peak)
20	Ground-Ivy	Glechoma hederacea	Mint Family	66	Apr (past peak)
21	Robin's-Plantain	Erigeron pulchellus	Sunflowers, Daisies, Asters, and Allies	66	May (peak)
22	Sessile Bellwort	Uvularia sessilifolia	Bellworts and allies	61	May (peak)
23	Annual Honesty	Lunaria annua	mustard family	59	May (peak)
24	Painted Trillium	Trillium undulatum	Herb-Paris, False Hellebores, Trilliums and allies	50	May (peak)
25	Wild Sarsaparilla	Aralia nudicaulis	ivy family	48	May (peak)
26	Marsh Marigold	Caltha palustris	buttercup family	45	Apr (past peak)
27	Moss Phlox	Phlox subulata	phlox family	45	May (peak)
28	Solomon's plume	Maianthemum racemosum	agave and allies	43	May (peak)
29	Mountain Laurel	Kalmia latifolia	heath family	38	Jun (rising)
30	Red Clover	Trifolium pratense	Legumes	38	Jun (rising)
31	Carpet Bugle	Ajuga reptans	Mint Family	36	May (peak)
32	golden Alexanders	Zizia aurea	carrot family	36	May (peak)
33	European lily of the valley	Convallaria majalis	agave and allies	34	May (peak)
34	White Baneberry	Actaea pachypoda	buttercup family	33	May (peak)
35	Multiflora Rose	Rosa multiflora	rose family	33	Jun (rising)
36	Mapleleaf Viburnum	Viburnum acerifolium	elder family	32	Jun (rising)
37	Lesser Periwinkle	Vinca minor	Dogbane Family	31	Apr (past peak)
38	Red Deadnettle	Lamium purpureum	Mint Family	30	Apr (past peak)
39	Virginia Springbeauty	Claytonia virginica	Pussypaw Family	30	Apr (past peak)
40	Beach Plum	Prunus maritima	rose family	29	May (peak)
41	Flowering Dogwood	Cornus florida	Dogwood family	28	May (peak)
42	Canada toadflax	Linaria canadensis	Plantain Family	28	Jun (rising)
43	Large White Trillium	Trillium grandiflorum	Herb-Paris, False Hellebores, Trilliums and allies	27	May (peak)
44	Winged Euonymus	Euonymus alatus	staff-vine family	27	May (peak)
45	Rue Anemone	Thalictrum thalictroides	buttercup family	26	Apr (past peak)
46	One-Flowered Cancer-Root	Aphyllon uniflorum	broomrape family	26	May (peak)
47	Creeping Foamflower	Tiarella stolonifera	saxifrage family	25	May (peak)
48	American bladdernut	Staphylea trifolia	bladdernut family	23	May (peak)
49	Rock Harlequin	Capnoides sempervirens	Poppy Family	22	May (peak)
50	White Clover	Trifolium repens	Legumes	21	Jun (rising)