Wildflowers Blooming in New Hampshire in September (60 Species)

60 wildflowers were recorded blooming in New Hampshire in September in our iNaturalist sample; 17 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

Red Clover161 obs.

Whorled Wood Aster132 obs.

Silverrod125 obs.

Common Jewelweed95 obs.

Flat-Top White Aster74 obs.

Pearly Everlasting65 obs.

White Turtlehead61 obs.

Common Wrinkle-Leaved Goldenrod53 obs.

New England aster47 obs.

black-eyed Susan44 obs.

White Wood Aster44 obs.

Common Boneset43 obs.

All wildflowers blooming in New Hampshire in September

#	Species	Scientific name	Family	Obs.	Peak in state
1	Red Clover	Trifolium pratense	Legumes	161	Sep (peak)
2	Whorled Wood Aster	Oclemena acuminata	Sunflowers, Daisies, Asters, and Allies	132	Aug (past peak)
3	Silverrod	Solidago bicolor	Sunflowers, Daisies, Asters, and Allies	125	Sep (peak)
4	Common Jewelweed	Impatiens capensis	balsam family	95	Aug (past peak)
5	Flat-Top White Aster	Doellingeria umbellata	Sunflowers, Daisies, Asters, and Allies	74	Aug (past peak)
6	Pearly Everlasting	Anaphalis margaritacea	Sunflowers, Daisies, Asters, and Allies	65	Aug (past peak)
7	White Turtlehead	Chelone glabra	Plantain Family	61	Aug (past peak)
8	Common Wrinkle-Leaved Goldenrod	Solidago rugosa	Sunflowers, Daisies, Asters, and Allies	53	Sep (peak)
9	New England aster	Symphyotrichum novae-angliae	Sunflowers, Daisies, Asters, and Allies	47	Sep (peak)
10	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	44	Jul (past peak)
11	White Wood Aster	Eurybia divaricata	Sunflowers, Daisies, Asters, and Allies	44	Sep (peak)
12	Common Boneset	Eupatorium perfoliatum	Sunflowers, Daisies, Asters, and Allies	43	Aug (past peak)
13	Common Blue Wood Aster	Symphyotrichum cordifolium	Sunflowers, Daisies, Asters, and Allies	42	Sep (peak)
14	Swamp Aster	Symphyotrichum puniceum	Sunflowers, Daisies, Asters, and Allies	40	Sep (peak)
15	Bluestem Goldenrod	Solidago caesia	Sunflowers, Daisies, Asters, and Allies	34	Sep (peak)
16	Cardinal Flower	Lobelia cardinalis	bellflower family	32	Aug (past peak)
17	Japanese knotweed	Reynoutria japonica	knotweed family	32	Sep (peak)
18	Flat-Topped Goldenrod	Euthamia graminifolia	Sunflowers, Daisies, Asters, and Allies	30	Aug (past peak)
19	Purple Loosestrife	Lythrum salicaria	lythrum family	29	Aug (past peak)
20	Common Toadflax	Linaria vulgaris	Plantain Family	26	Sep (peak)
21	American Witch-Hazel	Hamamelis virginiana	witch-hazel family	25	Oct (rising)
22	Calico Aster	Symphyotrichum lateriflorum	Sunflowers, Daisies, Asters, and Allies	25	Sep (peak)
23	White Meadowsweet	Spiraea alba	rose family	23	Jul (past peak)
24	Common Tansy	Tanacetum vulgare	Sunflowers, Daisies, Asters, and Allies	22	Aug (past peak)
25	Sweet Everlasting	Pseudognaphalium obtusifolium	Sunflowers, Daisies, Asters, and Allies	22	Sep (peak)
26	Orange Hawkweed	Pilosella aurantiaca	Sunflowers, Daisies, Asters, and Allies	22	Jun (past peak)
27	Nodding Beggarticks	Bidens cernua	Sunflowers, Daisies, Asters, and Allies	21	Sep (peak)
28	Arrow-Leaved Tearthumb	Persicaria sagittata	knotweed family	21	Aug (past peak)
29	White Snakeroot	Ageratina altissima	Sunflowers, Daisies, Asters, and Allies	20	Sep (peak)
30	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	19	Jul (past peak)
31	Broad-Leaved Goldenrod	Solidago flexicaulis	Sunflowers, Daisies, Asters, and Allies	19	Sep (peak)
32	Northern Seaside Goldenrod	Solidago sempervirens	Sunflowers, Daisies, Asters, and Allies	19	Sep (peak)
33	Blue Curls	Trichostema dichotomum	Mint Family	16	Aug (past peak)
34	White Clover	Trifolium repens	Legumes	15	Jun (past peak)
35	Canadian bunchberry	Cornus canadensis	Dogwood family	14	Jun (past peak)
36	Bird's-Foot Trefoil	Lotus corniculatus	Legumes	14	Jun (past peak)
37	American white waterlily	Nymphaea odorata	Waterlily Family	14	Aug (past peak)
38	Common Soapwort	Saponaria officinalis	pink family	14	Jul (past peak)
39	Ghost Pipe	Monotropa uniflora	heath family	13	Jul (past peak)
40	Common Selfheal	Prunella vulgaris	Mint Family	13	Jul (past peak)
41	Azure Bluet	Houstonia caerulea	madder family	12	May (past peak)
42	Wild Carrot	Daucus carota	carrot family	12	Jul (past peak)
43	Rabbitfoot Clover	Trifolium arvense	Legumes	12	Jul (past peak)
44	Three-Toothed Cinquefoil	Sibbaldiopsis tridentata	rose family	12	Jul (past peak)
45	American pokeweed	Phytolacca americana	Pokeweed Family	11	Sep (peak)
46	Horseweed	Erigeron canadensis	Sunflowers, Daisies, Asters, and Allies	10	Aug (past peak)
47	spotted Joe-Pye weed	Eutrochium maculatum	Sunflowers, Daisies, Asters, and Allies	10	Aug (past peak)
48	Rugosa Rose	Rosa rugosa	rose family	9	Jun (past peak)
49	Large-Leaved Aster	Eurybia macrophylla	Sunflowers, Daisies, Asters, and Allies	9	Aug (past peak)
50	Tufted Vetch	Vicia cracca	Legumes	8	Jun (past peak)