Scientific Name
Cirsium pyrenaicum (Jacq.) All.
Common Name(s)
Pyrenean Thistle
Synonym(s)
Carduus jacquinii, Carduus paniculatus, Carduus pyrenaicus, Cirsium castellanum, Cirsium flavispina, Cirsium matritense, Cirsium paniculatum, Cirsium pyrenaicum subsp. pyrenaicum, Cirsium pyrenaicum var. pyrenaicum, Cnicus pyrenaicus
Scientific Classification
Family: Asteraceae
Tribe: Cynareae
Genus: Cirsium
Origin
Cirsium pyrenaicum is native to France, the Iberian Peninsula, and northwest Morocco.
Flower
Color: Purplish
Bloom Time: June to July
Description
Cirsium pyrenaicum is a rhizomatous perennial plant that grows up to 5 feet (1.5 m) tall. Leaves are green, lance-shaped, and have spiny edges. Flowers are purplish and appear from June to July.
Hardiness
USDA hardiness zone 3a to 8b: from −40 °F (−40 °C) to 20 °F (−6.7 °C).
How to Grow and Care
The seeds of Cirsium can be sown in either autumn or after the last frost of spring. They should be sown at a depth of 0.12 inches (3 mm). If grown indoors, then Cirsium takes about 2 to 3 weeks to germinate at 70 to 75 degrees Fahrenheit (21 to 24 degrees Celsius). The seedlings should be planted out in early spring when it is still possible to get a frost with a spacing of about 2 feet (60 cm).
Cirsium thrives in full sun and poor, average, or reach soil that is moist but well-drained. Plants require little care, but deadheading limits their tendency to self-sow. They generally self-sow only in moderation, and unlike weedy thistles, the seedlings are easy to pull up. Use Thistles in mixed beds, herb gardens, or meadow-like plantings.
See more at How to Grow and Care for Thistles (Cirsium).
Links
- Back to genus Cirsium
- Plantpedia: Browse flowering plants by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, or Origin
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