Narrowleaf hawksbeard (Crepis tectorum)

Narrowleaf hawksbeard

Also known as: Wall hawksbeard

The Crepis tectorum, also known as Narrowleaf hawksbeard, is indigenous to Eurasia. “Crepis” in the genus name comes from the Greek word “krepsis,” meaning “sandal,” which is what the seed looks like. It has flowers that look similar to a dandelion, and the stems are full of a milky white latex. It has caused ecological devastation everywhere it has been introduced.

Scientific classification

Species

Narrowleaf hawksbeard (Crepis tectorum)

Asters bellflowers fanflowers and allies

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Annual

Lifespan

Herb

Plant Type

1 cm to 2 cm

Flower Size

Yellow

Flower Color

Deciduous

Leaf type

20 - 38 ℃

Ideal Temperature

Images of Narrowleaf hawksbeard

Distribution of Narrowleaf hawksbeard

Distribution Map

Narrowleaf hawksbeard is native to temperate Eurasian regions, thriving across the vast expanse from Western Europe through to Northern Asia. Introduced populations of narrowleaf hawksbeard have established in parts of the North America and northeast Asia, as well as in certain North Atlantic islands. These introductions expand the plant's range beyond its original habitat, reflecting its adaptability to diverse environments.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Rocky and sandy ground by rivers and the sea

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Narrowleaf hawksbeard

Every week

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Water: Narrowleaf hawksbeard thrives in temperate regions with moderate moisture, preferring consistent hydration without waterlogging. Weekly watering maintains this balance, while local rainfall patterns can supplement irrigation needs, especially when cultivated outdoors.

Fertilize: For optimal growth, narrowleaf hawksbeard requires balanced nutrition. Use a high-nitrogen fertilizer during the growing season, applying lightly every four weeks for young plants and quarterly for mature ones. Fertilize as per instructions, avoiding direct foliage contact, and water afterwards for better absorption.

Pruning: Narrowleaf hawksbeard has slender leaves and yellow flowers. Prune in early to late spring to remove dead stems and spent blooms, enhancing growth vitality. Avoid over-pruning to prevent stunted growth. Regular pruning improves airflow, light penetration, and reduces disease risk for a healthier plant.

Propagation: Narrowleaf hawksbeard can be propagated from fresh seeds, lightly covered with soil for light exposure during germination. Maintain moisture without waterlogging, and thin seedlings once true leaves appear to prevent overcrowding, promoting healthier growth.

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