Wildflowers Blooming in Maine in August (60 Species)

60 wildflowers were recorded blooming in Maine in August in our iNaturalist sample; 24 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 August

Flat-Top White Aster399 obs.

Common Jewelweed269 obs.

Pearly Everlasting249 obs.

Cardinal Flower170 obs.

Whorled Wood Aster154 obs.

Purple Loosestrife148 obs.

White Meadowsweet139 obs.

black-eyed Susan132 obs.

Fireweed127 obs.

Silverrod123 obs.

Northern Seaside Goldenrod121 obs.

Pickerelweed117 obs.

All wildflowers blooming in Maine in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Flat-Top White Aster	Doellingeria umbellata	Sunflowers, Daisies, Asters, and Allies	399	Aug (peak)
2	Common Jewelweed	Impatiens capensis	balsam family	269	Aug (peak)
3	Pearly Everlasting	Anaphalis margaritacea	Sunflowers, Daisies, Asters, and Allies	249	Aug (peak)
4	Cardinal Flower	Lobelia cardinalis	bellflower family	170	Aug (peak)
5	Whorled Wood Aster	Oclemena acuminata	Sunflowers, Daisies, Asters, and Allies	154	Aug (peak)
6	Purple Loosestrife	Lythrum salicaria	lythrum family	148	Aug (peak)
7	White Meadowsweet	Spiraea alba	rose family	139	Jul (past peak)
8	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	132	Jul (past peak)
9	Fireweed	Chamaenerion angustifolium	evening primrose family	127	Jul (past peak)
10	Silverrod	Solidago bicolor	Sunflowers, Daisies, Asters, and Allies	123	Sep (rising)
11	Northern Seaside Goldenrod	Solidago sempervirens	Sunflowers, Daisies, Asters, and Allies	121	Aug (peak)
12	Pickerelweed	Pontederia cordata	Pickerelweeds	117	Jul (past peak)
13	Large-Leaved Aster	Eurybia macrophylla	Sunflowers, Daisies, Asters, and Allies	116	Aug (peak)
14	American groundnut	Apios americana	Legumes	114	Aug (peak)
15	Steeplebush	Spiraea tomentosa	rose family	111	Aug (peak)
16	Rugosa Rose	Rosa rugosa	rose family	109	Aug (peak)
17	White Turtlehead	Chelone glabra	Plantain Family	104	Aug (peak)
18	Flat-Topped Goldenrod	Euthamia graminifolia	Sunflowers, Daisies, Asters, and Allies	104	Aug (peak)
19	Common Tansy	Tanacetum vulgare	Sunflowers, Daisies, Asters, and Allies	96	Aug (peak)
20	Ghost Pipe	Monotropa uniflora	heath family	93	Jul (past peak)
21	Blue Vervain	Verbena hastata	Verbena Family	71	Aug (peak)
22	Wild Carrot	Daucus carota	carrot family	69	Jul (past peak)
23	Common Boneset	Eupatorium perfoliatum	Sunflowers, Daisies, Asters, and Allies	69	Aug (peak)
24	Spreading Dogbane	Apocynum androsaemifolium	Dogbane Family	68	Jul (past peak)
25	Broadleaf Arrowhead	Sagittaria latifolia	Water-Plantain family	64	Aug (peak)
26	Allegheny monkeyflower	Mimulus ringens	lopseed family	64	Jul (past peak)
27	American hog-peanut	Amphicarpaea bracteata	Legumes	62	Aug (peak)
28	Orange Hawkweed	Pilosella aurantiaca	Sunflowers, Daisies, Asters, and Allies	58	Jun (past peak)
29	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	56	Jul (past peak)
30	American white waterlily	Nymphaea odorata	Waterlily Family	55	Jul (past peak)
31	Common Selfheal	Prunella vulgaris	Mint Family	54	Jul (past peak)
32	Common Toadflax	Linaria vulgaris	Plantain Family	53	Sep (rising)
33	Fringed Loosestrife	Lysimachia ciliata	primrose family	53	Jul (past peak)
34	Red Clover	Trifolium pratense	Legumes	51	Jun (past peak)
35	Indian tobacco	Lobelia inflata	bellflower family	49	Jul (past peak)
36	Panicled Hawkweed	Hieracium paniculatum	Sunflowers, Daisies, Asters, and Allies	46	Aug (peak)
37	Rabbitfoot Clover	Trifolium arvense	Legumes	43	Jul (past peak)
38	Broad-leaved helleborine	Epipactis helleborine	Orchids	42	Aug (peak)
39	Narrowleaf Cow Wheat	Melampyrum lineare	broomrape family	42	Jul (past peak)
40	Three-Toothed Cinquefoil	Sibbaldiopsis tridentata	rose family	42	Jun (past peak)
41	Bird's-Foot Trefoil	Lotus corniculatus	Legumes	41	Jul (past peak)
42	Early Goldenrod	Solidago juncea	Sunflowers, Daisies, Asters, and Allies	41	Jul (past peak)
43	Prickly Cucumber	Echinocystis lobata	gourd family	40	Aug (peak)
44	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	40	Aug (peak)
45	Blue Curls	Trichostema dichotomum	Mint Family	40	Aug (peak)
46	Canada toadflax	Linaria canadensis	Plantain Family	40	Jun (past peak)
47	Purple Pitcher Plant	Sarracenia purpurea	New World pitcher plants	39	Jun (past peak)
48	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	38	Sep (rising)
49	Bittersweet Nightshade	Solanum dulcamara	nightshade family	38	Jul (past peak)
50	spotted Joe-Pye weed	Eutrochium maculatum	Sunflowers, Daisies, Asters, and Allies	35	Aug (peak)