How much sun does Blue Toadflax need?

Blue Toadflax grows best in part sun conditions.

When does Blue Toadflax bloom?

Blue Toadflax blooms in April, May, and June.

Where is Blue Toadflax native?

Blue Toadflax (Nuttallanthus canadensis) is native to AL, AR, CO, CT and 34 more states, per vouchered herbarium specimen records and regional native plant society lists.

What pollinators does Blue Toadflax attract?

Blue Toadflax draws bees and butterflies.

Is Blue Toadflax HOA-friendly?

Blue Toadflax takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Blue Toadflax

Name: Pollinator Patch
Author: Pollinator Patch

Nuttallanthus canadensis

Last reviewed: August 2026

Toxicity unknown

Blue Toadflax (Nuttallanthus canadensis) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part sun

Water

medium

Size

4"–24" H × 4"–12" W

Bloom

Apr, May, Jun

Native to

AL, AR, CO, CT and 34 more states

Pollinators

bees, butterflies

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Nuttallanthus canadensis is a delicate annual wildflower that produces small snapdragon-like blue to purple flowers on slender stems. It grows in a compact, upright form and blooms from April through June. This plant naturally reseeds in suitable locations and prefers well-drained soils with moderate moisture.

In an HOA neighborhood

Blue Toadflax takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Very small flowers may appear weedy to some
Annual nature means gaps when plants don't return
Can look sparse or informal in structured landscapes

Wildlife value

The flowers attract native bees and butterflies during its spring blooming period. As an annual, it provides nectar resources during the important early season when many pollinators are most active.

Common questions

How much sun does Blue Toadflax need?: Blue Toadflax grows best in part sun conditions.
When does Blue Toadflax bloom?: Blue Toadflax blooms in April, May, and June.
Where is Blue Toadflax native?: Blue Toadflax (Nuttallanthus canadensis) is native to AL, AR, CO, CT and 34 more states, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does Blue Toadflax attract?: Blue Toadflax draws bees and butterflies.
Is Blue Toadflax HOA-friendly?: Blue Toadflax takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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