Wildflowers Blooming in Rhode Island in September (60 Species)

60 wildflowers were recorded blooming in Rhode Island in September in our iNaturalist sample; 19 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Apr May Jun Jul Aug Sep Oct

Top wildflowers in September

Pinesap26 obs.

Common Jewelweed21 obs.

White Snakeroot20 obs.

Groundsel Tree19 obs.

Flat-Topped Goldenrod15 obs.

Cardinal Flower14 obs.

Silverrod14 obs.

Asiatic dayflower12 obs.

Flat-Top White Aster12 obs.

Chicory11 obs.

New England aster11 obs.

Northern Seaside Goldenrod11 obs.

All wildflowers blooming in Rhode Island in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Pinesap	Monotropa hypopitys	heath family	26	Sep (peak)
2	Common Jewelweed	Impatiens capensis	balsam family	21	Aug (past peak)
3	White Snakeroot	Ageratina altissima	Sunflowers, Daisies, Asters, and Allies	20	Sep (peak)
4	Groundsel Tree	Baccharis halimifolia	Sunflowers, Daisies, Asters, and Allies	19	Sep (peak)
5	Flat-Topped Goldenrod	Euthamia graminifolia	Sunflowers, Daisies, Asters, and Allies	15	Sep (peak)
6	Cardinal Flower	Lobelia cardinalis	bellflower family	14	Aug (past peak)
7	Silverrod	Solidago bicolor	Sunflowers, Daisies, Asters, and Allies	14	Sep (peak)
8	Asiatic dayflower	Commelina communis	Spiderworts	12	Sep (peak)
9	Flat-Top White Aster	Doellingeria umbellata	Sunflowers, Daisies, Asters, and Allies	12	Sep (peak)
10	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	11	Jul (past peak)
11	New England aster	Symphyotrichum novae-angliae	Sunflowers, Daisies, Asters, and Allies	11	Sep (peak)
12	Northern Seaside Goldenrod	Solidago sempervirens	Sunflowers, Daisies, Asters, and Allies	11	Oct (rising)
13	Common Wrinkle-Leaved Goldenrod	Solidago rugosa	Sunflowers, Daisies, Asters, and Allies	10	Sep (peak)
14	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	9	Jul (past peak)
15	Sheep Laurel	Kalmia angustifolia	heath family	8	Jun (past peak)
16	Common Tansy	Tanacetum vulgare	Sunflowers, Daisies, Asters, and Allies	8	Aug (past peak)
17	Common Dandelion	Taraxacum officinale	Sunflowers, Daisies, Asters, and Allies	7	Jun (past peak)
18	Autumn Clematis	Clematis terniflora	buttercup family	7	Sep (peak)
19	Tall Goldenrod	Solidago altissima	Sunflowers, Daisies, Asters, and Allies	7	Sep (peak)
20	Japanese knotweed	Reynoutria japonica	knotweed family	7	Sep (peak)
21	Common Toadflax	Linaria vulgaris	Plantain Family	6	Aug (past peak)
22	Hedge Bindweed	Calystegia sepium	bindweed family	6	Aug (past peak)
23	Wild Carrot	Daucus carota	carrot family	6	Aug (past peak)
24	Rugosa Rose	Rosa rugosa	rose family	6	Jul (past peak)
25	Common Boneset	Eupatorium perfoliatum	Sunflowers, Daisies, Asters, and Allies	6	Sep (peak)
26	Red Clover	Trifolium pratense	Legumes	5	Jun (past peak)
27	Sweet Everlasting	Pseudognaphalium obtusifolium	Sunflowers, Daisies, Asters, and Allies	5	Sep (peak)
28	Ghost Pipe	Monotropa uniflora	heath family	4	Jul (past peak)
29	White Turtlehead	Chelone glabra	Plantain Family	4	Sep (peak)
30	Great Blue Lobelia	Lobelia siphilitica	bellflower family	4	Aug (past peak)
31	White Wood Aster	Eurybia divaricata	Sunflowers, Daisies, Asters, and Allies	4	Oct (rising)
32	Partridge Pea	Chamaecrista fasciculata	Legumes	4	Aug (past peak)
33	Low Smartweed	Persicaria longiseta	knotweed family	4	Oct (rising)
34	Pickerelweed	Pontederia cordata	Pickerelweeds	3	Jul (past peak)
35	Sweet Pepperbush	Clethra alnifolia	clethra family	3	Aug (past peak)
36	Butterfly bush	Buddleja davidii	figwort family	3	Sep (peak)
37	White Campion	Silene latifolia	pink family	3	Jun (past peak)
38	Whorled Wood Aster	Oclemena acuminata	Sunflowers, Daisies, Asters, and Allies	3	Sep (peak)
39	Blue Curls	Trichostema dichotomum	Mint Family	3	Aug (past peak)
40	Panicled Hawkweed	Hieracium paniculatum	Sunflowers, Daisies, Asters, and Allies	3	Aug (past peak)
41	Bird's-Foot Trefoil	Lotus corniculatus	Legumes	2	Jun (past peak)
42	Butterfly Milkweed	Asclepias tuberosa	Dogbane Family	2	Jul (past peak)
43	Common Selfheal	Prunella vulgaris	Mint Family	2	Jun (past peak)
44	Pearly Everlasting	Anaphalis margaritacea	Sunflowers, Daisies, Asters, and Allies	2	Sep (peak)
45	Carolina horsenettle	Solanum carolinense	nightshade family	2	Jun (past peak)
46	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	2	Aug (past peak)
47	Upright Yellow Woodsorrel	Oxalis stricta	Woodsorrel Family	2	Sep (peak)
48	Bittersweet Nightshade	Solanum dulcamara	nightshade family	2	Jul (past peak)
49	Alder Buckthorn	Frangula alnus	buckthorn family	2	Jun (past peak)
50	Common Soapwort	Saponaria officinalis	pink family	2	Jul (past peak)