Wildflowers Blooming in Washington in August (60 Species)

60 wildflowers were recorded blooming in Washington in August in our iNaturalist sample; 11 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 Dec

Top wildflowers in August

Fireweed755 obs.

Pearly Everlasting616 obs.

Lewis' monkeyflower488 obs.

Mountain Bog Gentian381 obs.

Fringed Grass of Parnassus287 obs.

Threeleaf Foamflower261 obs.

Common Jewelweed174 obs.

Common Tansy162 obs.

Purple Loosestrife155 obs.

Western Columbine142 obs.

Pipsissewa134 obs.

Rose Spirea129 obs.

All wildflowers blooming in Washington in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Fireweed	Chamaenerion angustifolium	evening primrose family	755	Jul (past peak)
2	Pearly Everlasting	Anaphalis margaritacea	Sunflowers, Daisies, Asters, and Allies	616	Aug (peak)
3	Lewis' monkeyflower	Erythranthe lewisii	lopseed family	488	Aug (peak)
4	Mountain Bog Gentian	Gentiana calycosa	gentian family	381	Aug (peak)
5	Fringed Grass of Parnassus	Parnassia fimbriata	staff-vine family	287	Aug (peak)
6	Threeleaf Foamflower	Tiarella trifoliata	saxifrage family	261	Jul (past peak)
7	Common Jewelweed	Impatiens capensis	balsam family	174	Aug (peak)
8	Common Tansy	Tanacetum vulgare	Sunflowers, Daisies, Asters, and Allies	162	Aug (peak)
9	Purple Loosestrife	Lythrum salicaria	lythrum family	155	Aug (peak)
10	Western Columbine	Aquilegia formosa	buttercup family	142	Jun (past peak)
11	Pipsissewa	Chimaphila umbellata	heath family	134	Jul (past peak)
12	Rose Spirea	Spiraea douglasii	rose family	129	Jul (past peak)
13	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	113	Jul (past peak)
14	Purple Foxglove	Digitalis purpurea	Plantain Family	111	Jun (past peak)
15	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	110	Jul (past peak)
16	Bittersweet Nightshade	Solanum dulcamara	nightshade family	107	Aug (peak)
17	Wild Carrot	Daucus carota	carrot family	102	Jul (past peak)
18	Ragwort	Jacobaea vulgaris	Sunflowers, Daisies, Asters, and Allies	101	Jul (past peak)
19	Common Selfheal	Prunella vulgaris	Mint Family	92	Jul (past peak)
20	Columbia lily	Lilium columbianum	lily family	89	Jul (past peak)
21	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	81	Jul (past peak)
22	Creeping Thistle	Cirsium arvense	Sunflowers, Daisies, Asters, and Allies	81	Jul (past peak)
23	American bistort	Bistorta bistortoides	knotweed family	80	Jul (past peak)
24	Avalanche lily	Erythronium montanum	lily family	75	Jul (past peak)
25	Herb Robert	Geranium robertianum	Geranium family	72	May (past peak)
26	Field Bindweed	Convolvulus arvensis	bindweed family	70	Jun (past peak)
27	Subalpine Mariposa Lily	Calochortus subalpinus	lily family	70	Jul (past peak)
28	Pinesap	Monotropa hypopitys	heath family	67	Jun (past peak)
29	Common St. John's Wort	Hypericum perforatum	St. John's wort family	65	Jul (past peak)
30	Ghost Pipe	Monotropa uniflora	heath family	63	Jul (past peak)
31	European Searocket	Cakile maritima	mustard family	61	Aug (peak)
32	Butterfly bush	Buddleja davidii	figwort family	61	Jul (past peak)
33	Red Clover	Trifolium pratense	Legumes	59	Jun (past peak)
34	Twinflower	Linnaea borealis	honeysuckle family	57	Jul (past peak)
35	Dwarf Fireweed	Chamaenerion latifolium	evening primrose family	55	Aug (peak)
36	Common Cat's-ear	Hypochaeris radicata	Sunflowers, Daisies, Asters, and Allies	54	Jun (past peak)
37	Common Beargrass	Xerophyllum tenax	Herb-Paris, False Hellebores, Trilliums and allies	52	Jul (past peak)
38	Elephant's-Head lousewort	Pedicularis groenlandica	broomrape family	50	Jul (past peak)
39	Scouler's Harebell	Campanula scouleri	bellflower family	45	Jul (past peak)
40	Broad-Leaved Sweet Pea	Lathyrus latifolius	Legumes	44	Jul (past peak)
41	Ocean spray	Holodiscus discolor	rose family	41	Jul (past peak)
42	Spotted Knapweed	Centaurea stoebe	Sunflowers, Daisies, Asters, and Allies	40	Aug (peak)
43	California poppy	Eschscholzia californica	Poppy Family	39	May (past peak)
44	Salal	Gaultheria shallon	heath family	37	Jun (past peak)
45	Yellow Sand Verbena	Abronia latifolia	four o'clock family	36	May (past peak)
46	Lawn daisy	Bellis perennis	Sunflowers, Daisies, Asters, and Allies	35	Apr (past peak)
47	White Clover	Trifolium repens	Legumes	34	Jun (past peak)
48	Common Woolly Sunflower	Eriophyllum lanatum	Sunflowers, Daisies, Asters, and Allies	31	Jun (past peak)
49	Candy Flower	Claytonia sibirica	Pussypaw Family	30	Apr (past peak)
50	Shrubby Cinquefoil	Dasiphora fruticosa	rose family	30	Jul (past peak)