Cirsium Species, Southern Thistle, Texas Purple Thistle, Texas Thistle
Cirsiumtexanum

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

Synonym:Cirsium austrinum

Synonym:Cirsium helleri

Category

Biennials
Perennials

Water Requirements

Unknown

Sun Exposure

Full Sun
Sun to Partial Shade

Foliage

Herbaceous
Succulent

Foliage Color

Unknown

Height

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

Spacing

Unknown

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)

Where to Grow

Unknown

Danger

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

Bloom Color

Pink
Rose/Mauve

Bloom Characteristics

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

Bloom Size

Unknown

Bloom Time

Mid Spring
Late Spring/Early Summer
Mid Summer

Other details

Unknown

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

Non-patented

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