Wildflowers Blooming in Connecticut in October (60 Species)

60 wildflowers were recorded blooming in Connecticut in October in our iNaturalist sample; 6 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Mar Apr May Jun Jul Aug Sep Oct

Top wildflowers in October

American Witch-Hazel67 obs.

Bluestem Goldenrod31 obs.

Northern Seaside Goldenrod22 obs.

Red Clover19 obs.

White Snakeroot19 obs.

Common Blue Wood Aster18 obs.

Chicory17 obs.

Common Wrinkle-Leaved Goldenrod16 obs.

White Wood Aster13 obs.

Low Smartweed13 obs.

black-eyed Susan12 obs.

Herb Robert11 obs.

All wildflowers blooming in Connecticut in October

#	Species	Scientific name	Family	Obs.	Peak in state
1	American Witch-Hazel	Hamamelis virginiana	witch-hazel family	67	Oct (peak)
2	Bluestem Goldenrod	Solidago caesia	Sunflowers, Daisies, Asters, and Allies	31	Sep (past peak)
3	Northern Seaside Goldenrod	Solidago sempervirens	Sunflowers, Daisies, Asters, and Allies	22	Oct (peak)
4	Red Clover	Trifolium pratense	Legumes	19	Jun (past peak)
5	White Snakeroot	Ageratina altissima	Sunflowers, Daisies, Asters, and Allies	19	Sep (past peak)
6	Common Blue Wood Aster	Symphyotrichum cordifolium	Sunflowers, Daisies, Asters, and Allies	18	Oct (peak)
7	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	17	Jul (past peak)
8	Common Wrinkle-Leaved Goldenrod	Solidago rugosa	Sunflowers, Daisies, Asters, and Allies	16	Sep (past peak)
9	White Wood Aster	Eurybia divaricata	Sunflowers, Daisies, Asters, and Allies	13	Sep (past peak)
10	Low Smartweed	Persicaria longiseta	knotweed family	13	Sep (past peak)
11	black-eyed Susan	Rudbeckia hirta	Sunflowers, Daisies, Asters, and Allies	12	Jul (past peak)
12	Herb Robert	Geranium robertianum	Geranium family	11	May (past peak)
13	New England aster	Symphyotrichum novae-angliae	Sunflowers, Daisies, Asters, and Allies	11	Sep (past peak)
14	Fall Phlox	Phlox paniculata	phlox family	10	Aug (past peak)
15	Silverrod	Solidago bicolor	Sunflowers, Daisies, Asters, and Allies	10	Sep (past peak)
16	Common Toadflax	Linaria vulgaris	Plantain Family	9	Jul (past peak)
17	Common Jewelweed	Impatiens capensis	balsam family	8	Aug (past peak)
18	Groundsel Tree	Baccharis halimifolia	Sunflowers, Daisies, Asters, and Allies	8	Oct (peak)
19	Asiatic dayflower	Commelina communis	Spiderworts	7	Sep (past peak)
20	White Clover	Trifolium repens	Legumes	7	Jun (past peak)
21	Jimsonweed	Datura stramonium	nightshade family	7	Oct (peak)
22	Wild Carrot	Daucus carota	carrot family	6	Jul (past peak)
23	Rugosa Rose	Rosa rugosa	rose family	6	Jun (past peak)
24	Japanese knotweed	Reynoutria japonica	knotweed family	6	Sep (past peak)
25	brown-eyed Susan	Rudbeckia triloba	Sunflowers, Daisies, Asters, and Allies	5	Sep (past peak)
26	Ghost Pipe	Monotropa uniflora	heath family	4	Jul (past peak)
27	Common Selfheal	Prunella vulgaris	Mint Family	4	Jul (past peak)
28	Japanese honeysuckle	Lonicera japonica	honeysuckle family	4	Jun (past peak)
29	Great Blue Lobelia	Lobelia siphilitica	bellflower family	4	Sep (past peak)
30	Frost Aster	Symphyotrichum pilosum	Sunflowers, Daisies, Asters, and Allies	4	Oct (peak)
31	Bird's-Foot Trefoil	Lotus corniculatus	Legumes	3	Jun (past peak)
32	Pearly Everlasting	Anaphalis margaritacea	Sunflowers, Daisies, Asters, and Allies	3	Aug (past peak)
33	Sheep Laurel	Kalmia angustifolia	heath family	3	Jun (past peak)
34	Bittersweet Nightshade	Solanum dulcamara	nightshade family	3	Jun (past peak)
35	Nipplewort	Lapsana communis	Sunflowers, Daisies, Asters, and Allies	3	Jun (past peak)
36	Common Evening-Primrose	Oenothera biennis	evening primrose family	3	Aug (past peak)
37	White Campion	Silene latifolia	pink family	3	Jun (past peak)
38	Blue Mistflower	Conoclinium coelestinum	Sunflowers, Daisies, Asters, and Allies	3	Sep (past peak)
39	Calico Aster	Symphyotrichum lateriflorum	Sunflowers, Daisies, Asters, and Allies	3	Sep (past peak)
40	Flat-Topped Goldenrod	Euthamia graminifolia	Sunflowers, Daisies, Asters, and Allies	3	Sep (past peak)
41	Panicled Hawkweed	Hieracium paniculatum	Sunflowers, Daisies, Asters, and Allies	3	Aug (past peak)
42	Sweet Everlasting	Pseudognaphalium obtusifolium	Sunflowers, Daisies, Asters, and Allies	3	Sep (past peak)
43	Eastern Black Nightshade	Solanum emulans	nightshade family	3	Aug (past peak)
44	Common Dandelion	Taraxacum officinale	Sunflowers, Daisies, Asters, and Allies	2	Apr (past peak)
45	Cardinal Flower	Lobelia cardinalis	bellflower family	2	Aug (past peak)
46	American pokeweed	Phytolacca americana	Pokeweed Family	2	Jul (past peak)
47	Jack-in-the-Pulpit	Arisaema triphyllum	Arum Family	2	May (past peak)
48	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	2	Jun (past peak)
49	Lesser Periwinkle	Vinca minor	Dogbane Family	2	Apr (past peak)
50	Shaggy Soldier	Galinsoga quadriradiata	Sunflowers, Daisies, Asters, and Allies	2	Jul (past peak)