Wildflowers Blooming in District of Columbia in August (60 Species)

60 wildflowers were recorded blooming in District of Columbia in August in our iNaturalist sample; 18 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Feb Mar Apr May Jun Jul Aug Sep Oct

Top wildflowers in August

Porcelain Berry59 obs.

Chicory33 obs.

Asiatic dayflower22 obs.

American groundnut16 obs.

Common Jewelweed9 obs.

American pokeweed9 obs.

Yellow Passionflower9 obs.

Purple Loosestrife9 obs.

Autumn Clematis9 obs.

Cardinal Flower7 obs.

Swamp Rose Mallow7 obs.

Purple Passionflower5 obs.

All wildflowers blooming in District of Columbia in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Porcelain Berry	Ampelopsis glandulosa	Grape Family	59	Aug (peak)
2	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	33	Jun (past peak)
3	Asiatic dayflower	Commelina communis	Spiderworts	22	Sep (rising)
4	American groundnut	Apios americana	Legumes	16	Aug (peak)
5	Common Jewelweed	Impatiens capensis	balsam family	9	Sep (rising)
6	American pokeweed	Phytolacca americana	Pokeweed Family	9	Aug (peak)
7	Yellow Passionflower	Passiflora lutea	Passionfruit Family	9	Aug (peak)
8	Purple Loosestrife	Lythrum salicaria	lythrum family	9	Jul (past peak)
9	Autumn Clematis	Clematis terniflora	buttercup family	9	Sep (rising)
10	Cardinal Flower	Lobelia cardinalis	bellflower family	7	Aug (peak)
11	Swamp Rose Mallow	Hibiscus moscheutos	Mallow and Hibiscus Family	7	Jul (past peak)
12	Purple Passionflower	Passiflora incarnata	Passionfruit Family	5	Sep (rising)
13	Carolina horsenettle	Solanum carolinense	nightshade family	5	Jun (past peak)
14	Amur honeysuckle	Lonicera maackii	honeysuckle family	5	Apr (past peak)
15	Blue Mistflower	Conoclinium coelestinum	Sunflowers, Daisies, Asters, and Allies	5	Sep (rising)
16	Crane-Fly Orchid	Tipularia discolor	Orchids	5	Aug (peak)
17	Panicled Hawkweed	Hieracium paniculatum	Sunflowers, Daisies, Asters, and Allies	5	Aug (peak)
18	Indian tobacco	Lobelia inflata	bellflower family	4	Aug (peak)
19	American trumpet vine	Campsis radicans	bignonia family	4	Jul (past peak)
20	Wingstem	Verbesina alternifolia	Sunflowers, Daisies, Asters, and Allies	4	Sep (rising)
21	Leafy Elephant's-Foot	Elephantopus carolinianus	Sunflowers, Daisies, Asters, and Allies	4	Aug (peak)
22	Great Blue Lobelia	Lobelia siphilitica	bellflower family	4	Aug (peak)
23	Swamp Milkweed	Asclepias incarnata	Dogbane Family	4	Jul (past peak)
24	Common Hibiscus	Hibiscus syriacus	Mallow and Hibiscus Family	4	Sep (rising)
25	Creeping Thistle	Cirsium arvense	Sunflowers, Daisies, Asters, and Allies	3	May (past peak)
26	Allegheny monkeyflower	Mimulus ringens	lopseed family	3	Jul (past peak)
27	Horseweed	Erigeron canadensis	Sunflowers, Daisies, Asters, and Allies	3	Aug (peak)
28	Cutleaf Coneflower	Rudbeckia laciniata	Sunflowers, Daisies, Asters, and Allies	3	Aug (peak)
29	Climbing Hempvine	Mikania scandens	Sunflowers, Daisies, Asters, and Allies	3	Aug (peak)
30	Pale Jewelweed	Impatiens pallida	balsam family	2	Sep (rising)
31	Broadleaf Arrowhead	Sagittaria latifolia	Water-Plantain family	2	Sep (rising)
32	Red Clover	Trifolium pratense	Legumes	2	May (past peak)
33	Pickerelweed	Pontederia cordata	Pickerelweeds	2	Jun (past peak)
34	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	2	Jun (past peak)
35	Whitemouth Dayflower	Commelina erecta	Spiderworts	2	Aug (peak)
36	Bittersweet Nightshade	Solanum dulcamara	nightshade family	2	May (past peak)
37	White Clover	Trifolium repens	Legumes	2	May (past peak)
38	Jimsonweed	Datura stramonium	nightshade family	2	Jul (past peak)
39	Hedge Bindweed	Calystegia sepium	bindweed family	2	Jun (past peak)
40	Hemp Dogbane	Apocynum cannabinum	Dogbane Family	2	Aug (peak)
41	White Sweetclover	Melilotus albus	Legumes	2	Aug (peak)
42	Spotted Knapweed	Centaurea stoebe	Sunflowers, Daisies, Asters, and Allies	2	Jun (past peak)
43	Japanese honeysuckle	Lonicera japonica	honeysuckle family	2	May (past peak)
44	Fall Phlox	Phlox paniculata	phlox family	2	Aug (peak)
45	Coral Honeysuckle	Lonicera sempervirens	honeysuckle family	2	Aug (peak)
46	Asian mazus	Mazus pumilus	mazus family	2	Apr (past peak)
47	Buttonweed	Diodia virginiana	madder family	2	Jul (past peak)
48	brown-eyed Susan	Rudbeckia triloba	Sunflowers, Daisies, Asters, and Allies	2	Jul (past peak)
49	American jumpseed	Persicaria virginiana	knotweed family	2	Jul (past peak)
50	Japanese knotweed	Reynoutria japonica	knotweed family	2	Jun (past peak)