Blue Toadflax (Nuttallanthus canadensis) - Garden.org

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General Plant Information (Edit)
Plant Habit:	Herb/Forb
Life cycle:	Annual
Sun Requirements:	Full Sun Full Sun to Partial Shade Partial or Dappled Shade
Water Preferences:	Mesic Dry Mesic Dry
Minimum cold hardiness:	Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone:	Zone 11
Plant Height:	10 - 20 inches
Plant Spread:	4 inches
Flowers:	Showy
Flower Color:	Lavender
Bloom Size:	Under 1"
Flower Time:	Late winter or early spring Spring Late spring or early summer Other: mid winter
Suitable Locations:	Xeriscapic
Wildlife Attractant:	Bees Butterflies
Resistances:	Drought tolerant
Miscellaneous:	Tolerates poor soil

Common names

Blue Toadflax
Canada Toadflax
Old-Field Toadflax

Botanical names

Accepted: Nuttallanthus canadensis
Synonym: Linaria canadensis

Photo Gallery

Location: Aberdeen, NC
Date: March 13, 2022
Toad flax #106; (RAB page 949, 166-16-2); AG p. 379,75-2-1; LHB

Uploaded by WebTucker

Location: Northeastern, Texas
Date: 2013-04-08

Uploaded by wildflowers

Location: Northeastern, Texas
Date: 2013-04-08

Uploaded by wildflowers

Location: Opp, AL Z8b
Date: 2023-03-24

Uploaded by purpleinopp

Location: Charleston, SC
Date: 2013-05-16

Uploaded by scvirginia

Location: Southern Pines, NC
Date: April 2, 2023
Toad flax #106; RAB page 949, 166-16-2; AG p. 379,75-2-1; LHB p.

Uploaded by WebTucker

Location: Aberdeen, NC
Date: March 13, 2022
Toad flax #106; (RAB page 949, 166-16-2); AG p. 379,75-2-1; LHB

Uploaded by WebTucker

Location: Opp, AL
Date: 2015-03-20

Uploaded by purpleinopp

Location: Daytona Beach, Florida
Date: 2013-03-05

Uploaded by plantladylin

Date: 2024-04-07

Uploaded by sedumzz

Location: Jefferson County, Texas
Date: March 23, 2012

Uploaded by Horntoad

Location: Tochigi, Japan
Date: 2017-04-22

Uploaded by tofitropic

Location: zone 8/9 Lake City, Fl.
Date: 2012-03-14

Uploaded by flaflwrgrl

Location: Opp, AL Z8b
Date: 2023-03-24

Uploaded by purpleinopp

Location: Daytona Beach, Florida
Date: 2013-03-05

Uploaded by plantladylin

Location: Jefferson County, Texas
Date: March 23, 2012

Uploaded by Horntoad

Location: Oldfort TN
Date: 2017-05-08

Uploaded by Phytodiscovery

Location: Orlando, Central Florida, zone 9b
Date: 2012-02-15
Linaria canadensis

Uploaded by GoneTropical

Location: Daytona Beach, Florida
Date: 2014-03-20

Uploaded by plantladylin

Location: Daytona Beach, Florida
Date: 2012-03-02
Florida native wildflower, popping up all over the lawn

Uploaded by plantladylin

Location: Toledo Bend Lake area - Texas/Louisiana
Photo Courtesy Toledo-Bend.Com

Uploaded by flaflwrgrl

Location: Northeastern, Texas
Date: 2013-04-08

Uploaded by wildflowers

Location: Opp, AL
Date: 2016-03-31

Uploaded by purpleinopp

Location: Opp, AL
Date: 2016-03-31

Uploaded by purpleinopp

Location: Daytona Beach, Florida
Date: 2013-03-05

Uploaded by plantladylin

Location: Opp, AL
Date: 2015-03-20
MM side of ruler.

Uploaded by purpleinopp

Location: Opp, AL
Date: 2015-03-20
Basal growth is wildly different from the taller foliage.

Uploaded by purpleinopp

Location: Opp, AL
Date: 2015-03-20

Uploaded by purpleinopp

Location: Opp, AL
Date: 2015-03-20

Uploaded by purpleinopp

Location: Opp, AL
Date: 2015-03-20

Uploaded by purpleinopp

Location: Jefferson County, Texas
Date: March 23, 2012

Uploaded by Horntoad

Location: Jefferson County, Texas
Date: March 23, 2012

Uploaded by Horntoad

Location: Orlando, Central Florida, zone 9b
Date: 2008-03-12
Linaria canadensis

Uploaded by GoneTropical

Location: zone 8/9 Lake City, Fl.
Date: 2012-03-14

Uploaded by flaflwrgrl

Location: zone 8/9 Lake City, Fl.
Date: 2012-03-14

Uploaded by flaflwrgrl

Location: zone 8/9 Lake City, Fl.
Date: 2012-03-14

Uploaded by flaflwrgrl

Location: zone 8/9 Lake City, Fl.
Date: 2012-03-14

Uploaded by flaflwrgrl

Location: Northeastern, Texas
Date: 2013-04-16
seed pods along the stem hold tiny black seeds

Uploaded by wildflowers

Location: Jefferson County, Texas
Date: March 23, 2012

Uploaded by Horntoad

Comments:

Posted by terrafirma (NE. FL. - Zone 9a) on Aug 23, 2014 12:29 PM concerning plant:

A beautiful little herbaceous wildflower. A native annual, to 24 inches in height, with linear leaves. The flower is blue, 1/2 inch, 2 lipped. The upper lip is 2 lobed, while the lower is 3. It grows in open ruderal, and is not picky about the soil moisture. Will grow in moist or dry sandy soils.

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