Wildflowers Blooming in Connecticut in August (60 Species)

60 wildflowers were recorded blooming in Connecticut in August in our iNaturalist sample; 26 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 August

Cardinal Flower124 obs.

Common Jewelweed119 obs.

Sweet Pepperbush74 obs.

Panicled Hawkweed74 obs.

Purple Loosestrife58 obs.

Allegheny monkeyflower58 obs.

American groundnut54 obs.

black-eyed Susan53 obs.

Wild Carrot52 obs.

Common Boneset45 obs.

Red Clover38 obs.

American hog-peanut38 obs.

All wildflowers blooming in Connecticut in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Cardinal Flower	Lobelia cardinalis	bellflower family	124	Aug (peak)
2	Common Jewelweed	Impatiens capensis	balsam family	119	Aug (peak)
3	Sweet Pepperbush	Clethra alnifolia	clethra family	74	Aug (peak)
4	Panicled Hawkweed	Hieracium paniculatum	Sunflowers, Daisies, Asters, and Allies	74	Aug (peak)
5	Purple Loosestrife	Lythrum salicaria	lythrum family	58	Aug (peak)
6	Allegheny monkeyflower	Mimulus ringens	lopseed family	58	Jul (past peak)
7	American groundnut	Apios americana	Legumes	54	Aug (peak)
8	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	53	Jul (past peak)
9	Wild Carrot	Daucus carota	carrot family	52	Jul (past peak)
10	Common Boneset	Eupatorium perfoliatum	Sunflowers, Daisies, Asters, and Allies	45	Aug (peak)
11	Red Clover	Trifolium pratense	Legumes	38	Jun (past peak)
12	American hog-peanut	Amphicarpaea bracteata	Legumes	38	Aug (peak)
13	Asiatic dayflower	Commelina communis	Spiderworts	36	Sep (rising)
14	White Snakeroot	Ageratina altissima	Sunflowers, Daisies, Asters, and Allies	26	Sep (rising)
15	Bird's-Foot Trefoil	Lotus corniculatus	Legumes	25	Jun (past peak)
16	Blue Vervain	Verbena hastata	Verbena Family	25	Jul (past peak)
17	Indian tobacco	Lobelia inflata	bellflower family	25	Aug (peak)
18	Butterfly Milkweed	Asclepias tuberosa	Dogbane Family	22	Jul (past peak)
19	Carolina horsenettle	Solanum carolinense	nightshade family	22	Aug (peak)
20	Downy Rattlesnake Plantain	Goodyera pubescens	Orchids	22	Aug (peak)
21	Porcelain Berry	Ampelopsis glandulosa	Grape Family	22	Aug (peak)
22	Bittersweet Nightshade	Solanum dulcamara	nightshade family	21	Jun (past peak)
23	Swamp Rose Mallow	Hibiscus moscheutos	Mallow and Hibiscus Family	21	Aug (peak)
24	Common Toadflax	Linaria vulgaris	Plantain Family	20	Jul (past peak)
25	White Wood Aster	Eurybia divaricata	Sunflowers, Daisies, Asters, and Allies	20	Sep (rising)
26	American pokeweed	Phytolacca americana	Pokeweed Family	19	Jul (past peak)
27	Shining Sumac	Rhus copallinum	Cashew Family	19	Aug (peak)
28	Blue Curls	Trichostema dichotomum	Mint Family	19	Aug (peak)
29	Partridge Pea	Chamaecrista fasciculata	Legumes	19	Aug (peak)
30	Common Selfheal	Prunella vulgaris	Mint Family	18	Jul (past peak)
31	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	18	Jul (past peak)
32	Low Smartweed	Persicaria longiseta	knotweed family	18	Sep (rising)
33	White Meadowsweet	Spiraea alba	rose family	17	Jul (past peak)
34	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	15	Aug (peak)
35	Arrow-Leaved Tearthumb	Persicaria sagittata	knotweed family	15	Sep (rising)
36	Pickerelweed	Pontederia cordata	Pickerelweeds	14	Jul (past peak)
37	Hedge Bindweed	Calystegia sepium	bindweed family	14	Jul (past peak)
38	Cutleaf Coneflower	Rudbeckia laciniata	Sunflowers, Daisies, Asters, and Allies	14	Aug (peak)
39	Prickly Cucumber	Echinocystis lobata	gourd family	13	Aug (peak)
40	White Clover	Trifolium repens	Legumes	13	Jun (past peak)
41	Virgin's-Bower	Clematis virginiana	buttercup family	13	Aug (peak)
42	Flat-Topped Goldenrod	Euthamia graminifolia	Sunflowers, Daisies, Asters, and Allies	13	Sep (rising)
43	Pale Jewelweed	Impatiens pallida	balsam family	12	Aug (peak)
44	Broadleaf Arrowhead	Sagittaria latifolia	Water-Plantain family	12	Aug (peak)
45	Common Soapwort	Saponaria officinalis	pink family	12	Jul (past peak)
46	Horseweed	Erigeron canadensis	Sunflowers, Daisies, Asters, and Allies	12	Aug (peak)
47	Yellow Star Grass	Hypoxis hirsuta	Stargrasses and allies	12	May (past peak)
48	Fall Phlox	Phlox paniculata	phlox family	12	Aug (peak)
49	Large-Leaved Aster	Eurybia macrophylla	Sunflowers, Daisies, Asters, and Allies	12	Aug (peak)
50	Early Goldenrod	Solidago juncea	Sunflowers, Daisies, Asters, and Allies	12	Aug (peak)