Nuttallanthus Species, Blue Toadflax, Texas Toadflax

Nuttallanthus texanus

Family: Plantaginaceae
Genus: Nuttallanthus (nut-al-ANTH-us) (Info)
Species: texanus (tek-SAY-nus) (Info)
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Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun



Foliage Color:

Unknown - Tell us


6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)


3-6 in. (7-15 cm)

6-9 in. (15-22 cm)

9-12 in. (22-30 cm)


USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

Where to Grow:

Can be grown as an annual


Unknown - Tell us

Bloom Color:



Bloom Characteristics:

Flowers are good for cutting

This plant is attractive to bees, butterflies and/or birds

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Other details:

Soil pH requirements:

5.6 to 6.0 (acidic)

Patent Information:


Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

Direct sow as soon as the ground can be worked

From seed; direct sow after last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Bag seedheads to capture ripening seed

Allow pods to dry on plant; break open to collect seeds

Allow seedheads to dry on plants; remove and collect seeds

Properly cleaned, seed can be successfully stored

Seed does not store well; sow as soon as possible


This plant has been said to grow in the following regions:

Seaside, California

Ball Ground, Georgia

Elberton, Georgia

Billings, Montana

Austin, Texas

Dripping Springs, Texas

Garland, Texas

Georgetown, Texas

Santo, Texas

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Gardeners' Notes:


On Apr 8, 2015, marasri from Dripping Springs, TX wrote:

This plant appeared out of nowhere and it is just floating above my other plants in a dainty whitish lavender, nodding in the wind. I sure hope it comes back. we are having a dampish winter compared to what it has been and all sorts of odd things are appearing.


On Mar 23, 2010, grovespirit from Sunset Valley, TX (Zone 9a) wrote:

A native TX wildflower, Texas toadflax is a subspecies of Linaria canadensis. The plant bears small, alternating flowers roughly 1 cm in size, on top of slender stalks. The flowers are usually blue, lavender or purple but may also be white, or less commonly, pale pink.

A very drought resistant plant once established, it thrives in a poor alluvial soil and is adaptive to a wide variety of soil pH. Nitrogen-rich soils not recommended since they produce excessive leaf growth at the expense of flowering. Needs a sunny position.

The small flowers and wispy foliage make the plant pretty easy to overlook. But it grows in large, attractive patches of flowers when in its favorite niche: Sunny areas with a light, sandy or gritty soil. It can also do OK in light gravel... read more