Wildflowers Blooming in Connecticut in September (60 Species)

60 wildflowers were recorded blooming in Connecticut in September in our iNaturalist sample; 23 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 September

Common Jewelweed107 obs.

Pinesap65 obs.

White Snakeroot64 obs.

Silverrod54 obs.

Asiatic dayflower49 obs.

New England aster47 obs.

White Turtlehead43 obs.

Common Wrinkle-Leaved Goldenrod43 obs.

Bluestem Goldenrod31 obs.

Cardinal Flower30 obs.

Panicled Hawkweed30 obs.

Common Toadflax29 obs.

All wildflowers blooming in Connecticut in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Common Jewelweed	Impatiens capensis	balsam family	107	Aug (past peak)
2	Pinesap	Monotropa hypopitys	heath family	65	Sep (peak)
3	White Snakeroot	Ageratina altissima	Sunflowers, Daisies, Asters, and Allies	64	Sep (peak)
4	Silverrod	Solidago bicolor	Sunflowers, Daisies, Asters, and Allies	54	Sep (peak)
5	Asiatic dayflower	Commelina communis	Spiderworts	49	Sep (peak)
6	New England aster	Symphyotrichum novae-angliae	Sunflowers, Daisies, Asters, and Allies	47	Sep (peak)
7	White Turtlehead	Chelone glabra	Plantain Family	43	Sep (peak)
8	Common Wrinkle-Leaved Goldenrod	Solidago rugosa	Sunflowers, Daisies, Asters, and Allies	43	Sep (peak)
9	Bluestem Goldenrod	Solidago caesia	Sunflowers, Daisies, Asters, and Allies	31	Sep (peak)
10	Cardinal Flower	Lobelia cardinalis	bellflower family	30	Aug (past peak)
11	Panicled Hawkweed	Hieracium paniculatum	Sunflowers, Daisies, Asters, and Allies	30	Aug (past peak)
12	Common Toadflax	Linaria vulgaris	Plantain Family	29	Jul (past peak)
13	American hog-peanut	Amphicarpaea bracteata	Legumes	29	Aug (past peak)
14	White Wood Aster	Eurybia divaricata	Sunflowers, Daisies, Asters, and Allies	29	Sep (peak)
15	Red Clover	Trifolium pratense	Legumes	27	Jun (past peak)
16	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	26	Jul (past peak)
17	Purple Loosestrife	Lythrum salicaria	lythrum family	23	Aug (past peak)
18	Northern Seaside Goldenrod	Solidago sempervirens	Sunflowers, Daisies, Asters, and Allies	20	Oct (rising)
19	Low Smartweed	Persicaria longiseta	knotweed family	20	Sep (peak)
20	Arrow-Leaved Tearthumb	Persicaria sagittata	knotweed family	20	Sep (peak)
21	Blue Curls	Trichostema dichotomum	Mint Family	19	Aug (past peak)
22	Flat-Topped Goldenrod	Euthamia graminifolia	Sunflowers, Daisies, Asters, and Allies	18	Sep (peak)
23	fen grass of Parnassus	Parnassia glauca	staff-vine family	17	Sep (peak)
24	Flat-Top White Aster	Doellingeria umbellata	Sunflowers, Daisies, Asters, and Allies	17	Sep (peak)
25	Japanese knotweed	Reynoutria japonica	knotweed family	17	Sep (peak)
26	Common Selfheal	Prunella vulgaris	Mint Family	16	Jul (past peak)
27	Common Boneset	Eupatorium perfoliatum	Sunflowers, Daisies, Asters, and Allies	16	Aug (past peak)
28	Bird's-Foot Trefoil	Lotus corniculatus	Legumes	15	Jun (past peak)
29	Wild Carrot	Daucus carota	carrot family	15	Jul (past peak)
30	Great Blue Lobelia	Lobelia siphilitica	bellflower family	15	Sep (peak)
31	brown-eyed Susan	Rudbeckia triloba	Sunflowers, Daisies, Asters, and Allies	15	Sep (peak)
32	Ghost Pipe	Monotropa uniflora	heath family	14	Jul (past peak)
33	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	13	Jul (past peak)
34	American burnweed	Erechtites hieraciifolius	Sunflowers, Daisies, Asters, and Allies	13	Sep (peak)
35	Pale Jewelweed	Impatiens pallida	balsam family	12	Aug (past peak)
36	Tufted Vetch	Vicia cracca	Legumes	12	Jun (past peak)
37	White Clover	Trifolium repens	Legumes	12	Jun (past peak)
38	Sweet Everlasting	Pseudognaphalium obtusifolium	Sunflowers, Daisies, Asters, and Allies	12	Sep (peak)
39	Marsh Fleabane	Pluchea odorata	Sunflowers, Daisies, Asters, and Allies	11	Sep (peak)
40	Calico Aster	Symphyotrichum lateriflorum	Sunflowers, Daisies, Asters, and Allies	11	Sep (peak)
41	Butterfly Milkweed	Asclepias tuberosa	Dogbane Family	10	Jul (past peak)
42	Carolina horsenettle	Solanum carolinense	nightshade family	10	Aug (past peak)
43	Common Evening-Primrose	Oenothera biennis	evening primrose family	10	Aug (past peak)
44	Autumn Clematis	Clematis terniflora	buttercup family	10	Sep (peak)
45	Tall Goldenrod	Solidago altissima	Sunflowers, Daisies, Asters, and Allies	10	Sep (peak)
46	Fall Phlox	Phlox paniculata	phlox family	10	Aug (past peak)
47	Large-Leaved Aster	Eurybia macrophylla	Sunflowers, Daisies, Asters, and Allies	10	Aug (past peak)
48	Blue Vervain	Verbena hastata	Verbena Family	9	Jul (past peak)
49	Rugosa Rose	Rosa rugosa	rose family	9	Jun (past peak)
50	American pokeweed	Phytolacca americana	Pokeweed Family	8	Jul (past peak)