Curly plumeless thistle (Carduus crispus)

Curly plumeless thistle

Also known as: Welted thistle, Plumeless thistle

Curly plumeless thistle (Carduus crispus), also known as welted thistle, is a biennial herb from Europe and Asia. In spite of its appearance, it is a member of the daisy family. After being imported to North America, it spread and is considered a noxious weed. Curly plumeless thistle is a favorite of painted lady caterpillars and honeybees.

Scientific classification

Species

Curly plumeless thistle (Carduus crispus)

Asters bellflowers fanflowers and allies

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Biennial, Annual

Lifespan

Herb

Plant Type

Summer, Early fall

Bloom Time

50 cm to 1.2 m

Plant Height

Green

Leaf Color

Evergreen

Leaf type

20 - 35 ℃

Ideal Temperature

Images of Curly plumeless thistle

Distribution of Curly plumeless thistle

Distribution Map

Curly plumeless thistle is a thistle native to regions in Europe and has since spread to parts of Asia and North America. It thrives in temperate climates and is often found in areas with disturbed soil. Curly plumeless thistle is not just naturally occurring but is also cultivated in various regions, broadening its presence beyond its original range.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Waste ground, Cultivated fields and roadsides

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Curly plumeless thistle

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Curly plumeless thistle thrives in conditions similar to its native habitat, requiring moderate humidity and consistent soil moisture. Water weekly, adjusting for natural rainfall, especially during the growing season to support its resilience and overall health.

Fertilize: Curly plumeless thistle requires balanced fertilizers for optimal growth, with bi-monthly feeding during spring and summer, and quarterly in fall. Use the recommended dose, halved for young plants. Monitor growth responses to adjust feeding, focusing on root-zone application to prevent damage.

Pruning: Curly plumeless thistle is a biennial plant with spiny leaves and purplish flowers. Prune in early spring by removing dead stems to promote growth and prevent disease. Prevent invasiveness by cutting flowers before seeds develop, and ensure proper disposal of pruned material to inhibit seed spread.

Propagation: Curly plumeless thistle is propagated by sowing seeds collected from mature flower heads. Use a well-draining soil mix and maintain moisture until germination. Fresh seeds enhance success rates. Caution is advised as curly plumeless thistle can become aggressive in favorable conditions.

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