Lachenal's Hawkweed (Hieracium lachenalii)

Lachenal's Hawkweed

Hieracium lachenalii

Dainty yellow blooms carpet grassy meadows with quiet charm. Perennial herbaceous wildflower; common name: Common Hawkweed.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; thrives in open grassland conditions and tolerates mild shade in hot climates
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Watering Drought-tolerant; only water during prolonged dry spells to avoid root rot
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Temperature Cold-hardy to subzero temperatures; survives frost and mild winter conditions in temperate regions
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Characteristics

  • Leaf: Basal rosette of oblong, softly hairy leaves with shallow toothed margins; stem leaves smaller, clasping the stem
  • Flower: Bright yellow composite flower heads (1–2 cm wide) clustered at branched stem tips
  • Stem: Erect, densely hairy, branching near the upper portion to support flower clusters
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Care Guide

Watering

Water occasionally during extended dry periods; avoid saturating the soil

Fertilization

Light, diluted feed once monthly. Use a low-nitrogen fertilizer to support flower production rather than leafy growth

Banana peel tea:Chop banana peels and soak in water for 24 hours; dilute 1:20 for root drench to avoid nutrient burn
Pruning
  • Deadhead spent flower heads to encourage extended blooming through late summer
  • Trim back faded foliage to ground level in late autumn to prepare for winter dormancy
  • Thin overcrowded clumps in early spring to improve airflow and reduce competition for resources
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA does not list this species as toxic to cats

Humans: No documented toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Wildflower meadow planting, pollinator support for bees and butterflies