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PlantFiles: Texas Thistle
Cirsium texanum

 
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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Cirsium (SIR-see-um) (Info)
Species: texanum (tek-SAY-num) (Info)

6 members have or want this plant for trade.

Category:
Biennials
Perennials

Height:
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing:
Unknown - Tell us

Hardiness:
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)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Pink
Rose/Mauve

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer

Foliage:
Herbaceous
Velvet/Fuzzy-Textured

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

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
8.6 to 9.0 (strongly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From seed; direct sow outdoors in fall
From seed; direct sow after last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

Click thumbnail
to view:

By Jeff_Beck
Thumbnail #1 of Cirsium texanum by Jeff_Beck

By Jeff_Beck
Thumbnail #2 of Cirsium texanum by Jeff_Beck

By htop
Thumbnail #3 of Cirsium texanum by htop

By htop
Thumbnail #4 of Cirsium texanum by htop

By htop
Thumbnail #5 of Cirsium texanum by htop

By frostweed
Thumbnail #6 of Cirsium texanum by frostweed

By frostweed
Thumbnail #7 of Cirsium texanum by frostweed

There are a total of 10 photos.
Click here to view them all!

Profile:

2 positives
No neutrals
1 negative

Gardeners' Notes:

RatingAuthorComment
Negative BajaBlue On May 3, 2009, BajaBlue from Rancho Santa Rita, TX (Zone 8a) wrote:

This is one of those plants where one gardener's treasure is another gardener's treasure. In this area of Texas, (North Central Texas Dallas-Fort Worth,: these grow wild on the freeway medians
hey easily get taller than me, and I am 5 foot w in. They have a beauriful bloom, but are impossible to handle without very thick gloves. They self seed promiscuouslt and are almost impossible
to eradicate.
Imho, they are best enjoyed in photographs or drawings. Their only saving grace would be the attractiveness to bees, But there are many many better ways to attract bees!

Positive htop On May 24, 2004, htop from San Antonio, TX (Zone 8b) wrote:

San Antonio, Tx.
An upright perennial that has spiny leaves and bracts, it can grow can grow from between two to five feet tall. Although the flower head does not have ray flowers, it has numerous pink to rose-purple disk flowers. It is foraged by butterflies and other insects and birds, such as the goldfinch, eat the seeds. White-tailed deer sometimes eat the flower buds and Rio Grande turkeys eat the seeds.

Positive frostweed On Apr 29, 2004, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

The Texas thistle is a wonderful Native plant. It is annual or biennial and it takes up a bit of space but the benefits are worth it. The flowers are gorgeos and butterflies love them.
Also the sphinx moths come out at night some as big a hummingbirds, and they hang around the flowers with their long proboscis a few inches long feeding on the nectar.
It is amazing watching them at night with a flash light. Also the goldfinches use the fluff from the flowers for their nests and eat the seeds.

Regional...

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

Arlington, Texas
De Leon, Texas
Desoto, Texas
Fort Worth, Texas
Lampasas, Texas
Red Oak, Texas
San Antonio, Texas



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