Asiatic dayflower (Commelina communis) is in the Spiderworts family (Commelinaceae). Across the U.S., iNaturalist users have logged 7,482 research-grade flowering observations of it in our sample, peaking in September.
Nationally it blooms mainly from June to September, but timing varies a lot by state and elevation — see the table below.
When to photograph Asiatic dayflower: observations by month (U.S.)
About Asiatic dayflower
Commelina communis, commonly known as the Asiatic dayflower, is an herbaceous annual plant in the dayflower family. It gets its name because the blooms last for only one day. It is native throughout much of East Asia and northern parts of Southeast Asia. In China, the plant is known as yazhicao (simplified Chinese: 鸭跖草; traditional Chinese: 鴨跖草; pinyin: yāzhīcǎo), roughly translating to "duckfoot herb", while in Japan it is known as tsuyukusa (露草, tsuyukusa), meaning "dew...From Wikipedia via iNaturalist — article, CC BY-SA.
Asiatic dayflower by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Virginia | 863 | September | Jun–Oct |
| North Carolina | 795 | September | Jun–Sep |
| New York | 710 | September | Jun–Sep |
| Pennsylvania | 558 | August | Jun–Sep |
| Maryland | 465 | September | Jun–Sep |
| Massachusetts | 410 | September | Jun–Sep |
| Illinois | 402 | July | Jun–Oct |
| Ohio | 332 | September | Jun–Oct |
| Missouri | 280 | September | Jun–Sep |
| New Jersey | 266 | September | Jun–Sep |
| Tennessee | 231 | September | Jun–Sep |
| Georgia | 215 | September | Jun–Sep |
| Indiana | 186 | September | Jun–Sep |
| Oklahoma | 186 | September | May–Oct |
| Kentucky | 184 | September | Jun–Sep |
| Arkansas | 171 | September | Jun–Oct |
| Alabama | 145 | September | Jun–Oct |
| Connecticut | 143 | September | Jun–Sep |
| South Carolina | 133 | August | Jun–Oct |
| District of Columbia | 101 | September | Jun–Oct |
| Michigan | 96 | July | Jun–Oct |
| Nebraska | 77 | June | Jun–Oct |
| Kansas | 72 | September | Jul–Sep |
| Wisconsin | 71 | August | Jun–Oct |
| Iowa | 68 | September | Jun–Sep |
| West Virginia | 63 | August | Jul–Oct |
| Minnesota | 56 | September | Jun–Sep |
| Texas | 53 | September | Sep–Oct |
| Delaware | 50 | September | Jul–Sep |
| Mississippi | 33 | July | Jun–Oct |
| Rhode Island | 32 | September | Jun–Sep |
| Louisiana | 13 | September | Jul–Oct |
| New Hampshire | 9 | August | Jun–Oct |
| Vermont | 6 | July | Jul–Jul |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (Spiderworts)
Photography tips
- Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
- Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
- Stay on trails — trampling meadows kills plants and ruins next year's display.
- Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.
FAQ
When is the best time to photograph Asiatic dayflower?
Nationally, September has the most observations, with the main season from June to September.
Where is Asiatic dayflower most often seen?
The most observations come from Virginia, North Carolina, New York.