Wildflowers Blooming in Maryland in August (60 Species)

60 wildflowers were recorded blooming in Maryland in August in our iNaturalist sample; 21 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov

Top wildflowers in August

Asiatic dayflower133 obs.

American groundnut124 obs.

Common Jewelweed113 obs.

Cardinal Flower108 obs.

Allegheny monkeyflower108 obs.

American hog-peanut103 obs.

Partridge Pea93 obs.

Chicory86 obs.

Swamp Rose Mallow77 obs.

Panicled Hawkweed77 obs.

Yellow Passionflower76 obs.

Indian tobacco73 obs.

All wildflowers blooming in Maryland in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Asiatic dayflower	Commelina communis	Spiderworts	133	Sep (rising)
2	American groundnut	Apios americana	Legumes	124	Aug (peak)
3	Common Jewelweed	Impatiens capensis	balsam family	113	Sep (rising)
4	Cardinal Flower	Lobelia cardinalis	bellflower family	108	Aug (peak)
5	Allegheny monkeyflower	Mimulus ringens	lopseed family	108	Jul (past peak)
6	American hog-peanut	Amphicarpaea bracteata	Legumes	103	Sep (rising)
7	Partridge Pea	Chamaecrista fasciculata	Legumes	93	Aug (peak)
8	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	86	Jun (past peak)
9	Swamp Rose Mallow	Hibiscus moscheutos	Mallow and Hibiscus Family	77	Aug (peak)
10	Panicled Hawkweed	Hieracium paniculatum	Sunflowers, Daisies, Asters, and Allies	77	Aug (peak)
11	Yellow Passionflower	Passiflora lutea	Passionfruit Family	76	Aug (peak)
12	Indian tobacco	Lobelia inflata	bellflower family	73	Aug (peak)
13	Rosepink	Sabatia angularis	gentian family	72	Jul (past peak)
14	Carolina horsenettle	Solanum carolinense	nightshade family	69	Jun (past peak)
15	Whorled Milkweed	Asclepias verticillata	Dogbane Family	57	Aug (peak)
16	Sharpwing Monkeyflower	Mimulus alatus	lopseed family	56	Aug (peak)
17	Wild Carrot	Daucus carota	carrot family	53	Jul (past peak)
18	Blue Mistflower	Conoclinium coelestinum	Sunflowers, Daisies, Asters, and Allies	53	Sep (rising)
19	Purple Passionflower	Passiflora incarnata	Passionfruit Family	52	Sep (rising)
20	Swamp Milkweed	Asclepias incarnata	Dogbane Family	52	Aug (peak)
21	American pokeweed	Phytolacca americana	Pokeweed Family	50	Aug (peak)
22	Crane-Fly Orchid	Tipularia discolor	Orchids	48	Aug (peak)
23	Porcelain Berry	Ampelopsis glandulosa	Grape Family	48	Aug (peak)
24	Wingstem	Verbesina alternifolia	Sunflowers, Daisies, Asters, and Allies	44	Sep (rising)
25	American trumpet vine	Campsis radicans	bignonia family	42	Jun (past peak)
26	Hemp Dogbane	Apocynum cannabinum	Dogbane Family	39	Jun (past peak)
27	Late Boneset	Eupatorium serotinum	Sunflowers, Daisies, Asters, and Allies	38	Sep (rising)
28	Cutleaf Coneflower	Rudbeckia laciniata	Sunflowers, Daisies, Asters, and Allies	38	Aug (peak)
29	Common Hibiscus	Hibiscus syriacus	Mallow and Hibiscus Family	38	Aug (peak)
30	Shining Sumac	Rhus copallinum	Cashew Family	36	Aug (peak)
31	Saltmarsh mallow	Kosteletzkya pentacarpos	Mallow and Hibiscus Family	36	Aug (peak)
32	Autumn Clematis	Clematis terniflora	buttercup family	35	Sep (rising)
33	Common Selfheal	Prunella vulgaris	Mint Family	34	Jun (past peak)
34	Red Clover	Trifolium pratense	Legumes	33	May (past peak)
35	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	33	Aug (peak)
36	White Clover	Trifolium repens	Legumes	32	May (past peak)
37	Buttonweed	Diodia virginiana	madder family	30	Aug (peak)
38	Purple Loosestrife	Lythrum salicaria	lythrum family	29	Jul (past peak)
39	White Sweetclover	Melilotus albus	Legumes	25	Jun (past peak)
40	Flat-Topped Goldenrod	Euthamia graminifolia	Sunflowers, Daisies, Asters, and Allies	25	Sep (rising)
41	Pickerelweed	Pontederia cordata	Pickerelweeds	24	Jul (past peak)
42	Sweet Pepperbush	Clethra alnifolia	clethra family	24	Jul (past peak)
43	Leafy Elephant's-Foot	Elephantopus carolinianus	Sunflowers, Daisies, Asters, and Allies	24	Aug (peak)
44	Pale Jewelweed	Impatiens pallida	balsam family	23	Sep (rising)
45	Downy Rattlesnake Plantain	Goodyera pubescens	Orchids	23	Jul (past peak)
46	Citronella Horse Balm	Collinsonia canadensis	Mint Family	23	Sep (rising)
47	American jumpseed	Persicaria virginiana	knotweed family	23	Aug (peak)
48	Naked-Flowered Tick-Trefoil	Hylodesmum nudiflorum	Legumes	22	Jul (past peak)
49	Trailing Fuzzy-Bean	Strophostyles helvola	Legumes	22	Sep (rising)
50	Great Blue Lobelia	Lobelia siphilitica	bellflower family	21	Sep (rising)