Wall Hawkweed (Hieracium murorum)

Wall Hawkweed

Hieracium murorum

Its sunny yellow blooms brighten dry slopes, a hardy wildflower for pollinator gardens. Herbaceous perennial; common name: wall hawkweed.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Prefers full sun to partial shade; tolerates dry, exposed sunny slopes
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Watering Water deeply when the top 2–3 cm of soil is dry; drought-tolerant once established
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Temperature Hardy to -5°C; tolerates moderate summer heat, avoid prolonged temperatures above 30°C
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Characteristics

  • Leaf: Basal rosette of oblong-lanceolate leaves with toothed margins; upper stem leaves smaller, clasping the stem
  • Flower: Bright yellow composite flower heads, 1–2 cm wide, clustered at the stem apex
  • Stem: Hairy, erect, unbranched or sparsely branched near the top
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Care Guide

Watering

Water regularly during active growth; avoid overwatering to prevent root rot

Fertilization

Optional light, balanced feed once at start of growth. Avoid over-fertilization to prevent leggy, weak stems

Eggshell powder topdressing:Sprinkle crushed, fully dried eggshells around the base to boost soil calcium; no dilution required
Pruning
  • Deadhead spent flower heads to encourage prolonged blooming
  • Cut back stems to the basal rosette after flowering to tidy the planting area
  • Remove yellowing basal leaves to improve airflow and reduce disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No known toxicity to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Wildflower for pollinator gardens; ornamental rock garden plant