Introduced and assessed as invasive in the lower 48 states
iNaturalist's volunteer curators list it as introduced in their Ohio checklist.
US-RIIS assesses a species as invasive when it causes, or is likely to cause, harm there, or is at least locally abundant and harmful ecologically, economically, or to health.
Season shown in 2 of Ohio's 88 counties. Explore Ohio
No result yet (37)
Recorded, too few records for a result (46)
Recorded, season not shown (3)
Season shown (2)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table
Counties as a table
common soapwort by Ohio county: records and mapped range
County
Records
Adams County
Recorded, too few records for a result
Allen County
Recorded, too few records for a result
Ashland County
No qualifying records yet
Ashtabula County
Recorded, too few records for a result
Athens County
Recorded, too few records for a result
Auglaize County
No qualifying records yet
Belmont County
No qualifying records yet
Brown County
No qualifying records yet
Butler County
Recorded, too few records for a result
Carroll County
No qualifying records yet
Champaign County
Recorded, too few records for a result
Clark County
Recorded, too few records for a result
Clermont County
Recorded, too few records for a result
Clinton County
No qualifying records yet
Columbiana County
Recorded, too few records for a result
Coshocton County
Recorded, too few records for a result
Crawford County
No qualifying records yet
Cuyahoga County
26 · Recorded, season not shown
Darke County
Recorded, too few records for a result
Defiance County
No qualifying records yet
Delaware County
Recorded, too few records for a result
Erie County
28 · Season shown
Fairfield County
No qualifying records yet
Fayette County
No qualifying records yet
Franklin County
Recorded, too few records for a result
Fulton County
No qualifying records yet
Gallia County
No qualifying records yet
Geauga County
Recorded, too few records for a result
Greene County
Recorded, too few records for a result
Guernsey County
Recorded, too few records for a result
Hamilton County
Recorded, too few records for a result
Hancock County
Recorded, too few records for a result
Hardin County
No qualifying records yet
Harrison County
No qualifying records yet
Henry County
No qualifying records yet
Highland County
No qualifying records yet
Hocking County
Recorded, too few records for a result
Holmes County
Recorded, too few records for a result
Huron County
No qualifying records yet
Jackson County
Recorded, too few records for a result
Jefferson County
Recorded, too few records for a result
Knox County
Recorded, too few records for a result
Lake County
34 · Recorded, season not shown
Lawrence County
No qualifying records yet
Licking County
Recorded, too few records for a result
Logan County
Recorded, too few records for a result
Lorain County
Recorded, too few records for a result
Lucas County
45 · Recorded, season not shown
Madison County
Recorded, too few records for a result
Mahoning County
Recorded, too few records for a result
Marion County
Recorded, too few records for a result
Medina County
Recorded, too few records for a result
Meigs County
No qualifying records yet
Mercer County
No qualifying records yet
Miami County
Recorded, too few records for a result
Monroe County
No qualifying records yet
Montgomery County
Recorded, too few records for a result
Morgan County
Recorded, too few records for a result
Morrow County
No qualifying records yet
Muskingum County
Recorded, too few records for a result
Noble County
No qualifying records yet
Ottawa County
Recorded, too few records for a result
Paulding County
No qualifying records yet
Perry County
Recorded, too few records for a result
Pickaway County
No qualifying records yet
Pike County
No qualifying records yet
Portage County
Recorded, too few records for a result
Preble County
No qualifying records yet
Putnam County
No qualifying records yet
Richland County
Recorded, too few records for a result
Ross County
Recorded, too few records for a result
Sandusky County
No qualifying records yet
Scioto County
No qualifying records yet
Seneca County
No qualifying records yet
Shelby County
No qualifying records yet
Stark County
Recorded, too few records for a result
Summit County
41 · Season shown
Trumbull County
Recorded, too few records for a result
Tuscarawas County
No qualifying records yet
Union County
Recorded, too few records for a result
Van Wert County
No qualifying records yet
Vinton County
Recorded, too few records for a result
Warren County
Recorded, too few records for a result
Washington County
No qualifying records yet
Wayne County
Recorded, too few records for a result
Williams County
No qualifying records yet
Wood County
Recorded, too few records for a result
Wyandot County
No qualifying records yet
No mapped range from the range source used, the USGS Gap Analysis Project, which maps land vertebrates only.
Season
When it is recorded
In Lake County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 34 records in 8 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Lake County · records of all species each week, 29,200 in all
Records per week from 34 records in 8 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.
Show as a table
Records of common soapwort in Lake County each week, and records of all species
Week
Records of common soapwort
Years recorded
Records of all species
Jan 4–10
0
0
54
Jan 11–17
0
0
37
Jan 18–24
0
0
52
Jan 25–31
0
0
82
Feb 1–7
0
0
58
Feb 8–14
0
0
89
Feb 15–21
0
0
51
Feb 22–28
0
0
54
Mar 1–7
0
0
51
Mar 8–14
0
0
155
Mar 15–21
0
0
190
Mar 22–28
0
0
166
Mar 29 – Apr 4
0
0
234
Apr 5–11
0
0
425
Apr 12–18
0
0
525
Apr 19–25
0
0
522
Apr 26 – May 2
0
0
844
May 3–9
0
0
1,247
May 10–16
0
0
647
May 17–23
1
1
950
May 24–30
0
0
1,067
May 31 – Jun 6
0
0
1,073
Jun 7–13
0
0
1,320
Jun 14–20
1
1
1,088
Jun 21–27
0
0
1,052
Jun 28 – Jul 4
0
0
1,305
Jul 5–11
7
3
1,359
Jul 12–18
4
4
1,171
Jul 19–25
2
2
1,056
Jul 26 – Aug 1
2
2
1,193
Aug 2–8
4
3
1,090
Aug 9–15
1
1
745
Aug 16–22
1
1
1,084
Aug 23–29
1
1
847
Aug 30 – Sep 5
3
2
699
Sep 6–12
3
2
858
Sep 13–19
0
0
714
Sep 20–26
0
0
739
Sep 27 – Oct 3
2
2
731
Oct 4–10
0
0
723
Oct 11–17
1
1
475
Oct 18–24
1
1
425
Oct 25–31
0
0
371
Nov 1–7
0
0
271
Nov 8–14
0
0
271
Nov 15–21
0
0
197
Nov 22–28
0
0
182
Nov 29 – Dec 5
0
0
81
Dec 6–12
0
0
111
Dec 13–19
0
0
84
Dec 20–26
0
0
96
Dec 27 – Jan 2
0
0
289
Reported in flower
Only 3 records here show flowers, too few to show a flowering season. One needs at least 20 records from 5 different years.
Reported in fruit
No records here show fruit yet, so there is no fruiting season to show. One needs at least 20 records from 5 different years.
In Ohio
Late June to early October, middle week Aug 2–8
Middle week · Aug 2–8
This week · Nov 8–14
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all
Records per week from 713 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not how common it is. The grey bars show how many records of all species were made here each week, so you can see when recording itself was high or low; the season is not adjusted by them.
Recorded on 451 dates. Latest record: October 2025.
Show as a table
Records of common soapwort in Ohio each week, and records of all species
Week
Records of common soapwort
Years recorded
Records of all species
Jan 4–10
0
0
6,211
Jan 11–17
0
0
5,146
Jan 18–24
1
1
4,645
Jan 25–31
0
0
4,698
Feb 1–7
0
0
6,023
Feb 8–14
0
0
5,888
Feb 15–21
0
0
5,436
Feb 22–28
0
0
6,846
Mar 1–7
0
0
8,321
Mar 8–14
0
0
10,384
Mar 15–21
0
0
12,620
Mar 22–28
0
0
13,949
Mar 29 – Apr 4
0
0
19,661
Apr 5–11
1
1
26,860
Apr 12–18
0
0
39,925
Apr 19–25
1
1
41,623
Apr 26 – May 2
1
1
56,391
May 3–9
1
1
52,952
May 10–16
2
2
53,785
May 17–23
5
3
57,698
May 24–30
2
2
54,651
May 31 – Jun 6
1
1
53,099
Jun 7–13
3
2
53,700
Jun 14–20
9
5
56,625
Jun 21–27
8
4
55,361
Jun 28 – Jul 4
54
8
58,477
Jul 5–11
84
9
61,336
Jul 12–18
62
9
64,722
Jul 19–25
68
10
69,753
Jul 26 – Aug 1
51
9
59,416
Aug 2–8
58
10
59,712
Aug 9–15
49
8
55,994
Aug 16–22
48
9
54,328
Aug 23–29
32
8
51,772
Aug 30 – Sep 5
37
7
57,167
Sep 6–12
28
6
59,075
Sep 13–19
18
5
54,543
Sep 20–26
18
8
45,860
Sep 27 – Oct 3
25
6
43,180
Oct 4–10
14
7
37,841
Oct 11–17
15
5
30,824
Oct 18–24
7
5
21,156
Oct 25–31
4
4
19,021
Nov 1–7
2
2
14,172
Nov 8–14
1
1
12,621
Nov 15–21
2
2
7,965
Nov 22–28
0
0
8,136
Nov 29 – Dec 5
0
0
6,083
Dec 6–12
1
1
6,004
Dec 13–19
0
0
5,423
Dec 20–26
0
0
5,661
Dec 27 – Jan 2
0
0
8,459
Reported in flower
Usually reported in flower late June to mid-September, middle week Jul 26 – Aug 1.
From 66 records that show flowers. Not every photo of a plant in flower is marked as flowering, so this shows when people reported it in flower, not when it flowers.
Reported in fruit
Only 2 records here show fruit, too few to show a fruiting season. One needs at least 20 records from 5 different years.
What these results show
These results show when people recorded a species, not when or where it occurs. Missing weeks and low counts do not mean absence or scarcity, and counts are not abundance. Contributed records reflect where, when and what people chose to observe.
Identification
How to identify it
Telling it apart
From what Ohio’s records show. Only what the records support is shown.
white campionSilene latifolia234 identifications worldwide named one where the other was meant
fall phloxPhlox paniculata110 identifications worldwide named one where the other was meant
dame's rocketHesperis matronalis37 identifications worldwide named one where the other was meant
blue phloxPhlox divaricata24 identifications worldwide named one where the other was meant
From iNaturalist’s similar-species counts, refreshed monthly: confusions in Ohio first, then worldwide. Only species with an Ohio result are listed.
Months not reported
Jan: recorded
Feb: no record
Mar: no record
Apr: recorded
May: recorded
Jun: recorded
Jul: recorded
Aug: recorded
Sep: recorded
Oct: recorded
Nov: recorded
Dec: recorded
Not reported in Ohio in February to March, 2016 to 2025.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
46%49%
Farmland
18%11%
Forest
18%31%
Wetland
8%5%
Barren
7%0.6%
Open water
1%3%
Grassland and shrub
0.8%0.9%
From 381 records placed within 100 m, beside all Ohio records placed the same way. People record where they go, so this shows where records come from, not where the species lives. Land cover: USGS Annual NLCD, 2025 (opens in a new tab)
Sources
Where these results come from
Records from iNaturalist research-grade observations and expert-identified GBIF datasets, CC0, CC BY and CC BY-NC. Sources
Seasons use the published method and its evidence thresholds. Methods
A spreadsheet (CSV) with a link to each record, on iNaturalist or GBIF. Records whose location was hidden by the observer or the source are counted but not linked.
