Canada toadflax (Linaria canadensis) is in the Plantain Family family (Plantaginaceae). Across the U.S., iNaturalist users have logged 2,314 research-grade flowering observations of it in our sample, peaking in May.
Nationally it blooms mainly from March to June, but timing varies a lot by state and elevation — see the table below.
When to photograph Canada toadflax: observations by month (U.S.)
About Canada toadflax
Nuttallanthus canadensis (syn. Linaria canadensis (L.) Dumort., Antirrhinum canadense L.; blue toadflax, Canada toadflax, old-field toadflax) is a species of Nuttallanthus in the Plantaginaceae family, native to eastern North America from Ontario east to Nova Scotia and south to Texas and Florida.From Wikipedia via iNaturalist — article, CC BY-SA.
Canada toadflax by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Massachusetts | 444 | June | May–Jun |
| Florida | 353 | March | Feb–Mar |
| Maine | 213 | June | Jun–Aug |
| New Jersey | 162 | May | May–May |
| Georgia | 130 | March | Mar–Apr |
| New York | 107 | May | May–Jun |
| Maryland | 100 | May | Apr–May |
| North Carolina | 98 | April | Apr–May |
| Delaware | 82 | May | Apr–May |
| Alabama | 81 | March | Mar–Apr |
| Mississippi | 76 | March | Mar–Apr |
| New Hampshire | 75 | June | Jun–Aug |
| Connecticut | 70 | June | May–Jul |
| Virginia | 66 | April | Apr–May |
| Wisconsin | 56 | June | May–Jun |
| Pennsylvania | 47 | May | May–Jun |
| Minnesota | 41 | May | May–Jun |
| South Carolina | 38 | April | Mar–Apr |
| Rhode Island | 33 | May | May–Jun |
| Vermont | 12 | June | Jun–Jul |
| Illinois | 9 | May | May–May |
| Michigan | 8 | June | May–Jun |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (Plantain Family)
Bird's-Eye Speedwell
Ribwort Plantain
Common Toadflax
White Turtlehead
Purple Foxglove
Ghost Flower
Foxglove Beardtongue
Thyme-Leaved Speedwell
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 Canada toadflax?
Nationally, May has the most observations, with the main season from March to June.
Where is Canada toadflax most often seen?
The most observations come from Massachusetts, Florida, Maine.