Spreading Dogbane (Apocynum androsaemifolium) is in the Dogbane Family family (Apocynaceae). Across the U.S., iNaturalist users have logged 2,760 research-grade flowering observations of it in our sample, peaking in July.
Nationally it blooms mainly from June to August, but timing varies a lot by state and elevation — see the table below.
When to photograph Spreading Dogbane: observations by month (U.S.)
About Spreading Dogbane
Apocynum androsaemifolium, the fly-trap dogbane or spreading dogbane, is a flowering plant in the Gentianales order.From Wikipedia via iNaturalist — article, CC BY-SA.
Spreading Dogbane by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| California | 373 | July | Jun–Aug |
| Vermont | 325 | July | Jun–Jul |
| Maine | 274 | July | Jul–Aug |
| Massachusetts | 228 | July | Jun–Aug |
| New Hampshire | 215 | July | Jun–Jul |
| Minnesota | 205 | July | Jun–Jul |
| Oregon | 159 | June | Jun–Jul |
| New York | 156 | July | Jun–Jul |
| Wisconsin | 144 | June | Jun–Jul |
| Washington | 132 | June | Jun–Aug |
| Michigan | 123 | July | Jun–Jul |
| Montana | 55 | June | Jun–Aug |
| Pennsylvania | 43 | June | Jun–Jul |
| Utah | 37 | July | Jul–Aug |
| Nevada | 35 | July | Jul–Jul |
| Connecticut | 29 | June | Jun–Jul |
| Colorado | 28 | July | Jun–Jul |
| Idaho | 23 | July | Jun–Jul |
| Wyoming | 22 | July | Jul–Jul |
| Illinois | 20 | June | May–Jul |
| South Dakota | 20 | July | Jun–Jul |
| New Mexico | 17 | July | Jun–Jul |
| New Jersey | 16 | July | Jun–Aug |
| North Carolina | 13 | July | Jun–Jul |
| West Virginia | 12 | July | Jul–Jul |
| Rhode Island | 11 | June | Jun–Jul |
| Maryland | 10 | June | Jun–Jul |
| Virginia | 9 | June | Jun–Jul |
| Indiana | 8 | June | Jun–Jun |
| Ohio | 6 | June | Jun–Jun |
| Arizona | 5 | June | Jun–Jul |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (Dogbane Family)
Butterfly Milkweed
Common Milkweed
Lesser Periwinkle
Swamp Milkweed
Showy Milkweed
Green Antelopehorns
Narrowleaf Milkweed
Greater Periwinkle
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 Spreading Dogbane?
Nationally, July has the most observations, with the main season from June to August.
Where is Spreading Dogbane most often seen?
The most observations come from California, Vermont, Maine.