Broom Toadflax (Linaria spartea)

Broom Toadflax

Linaria spartea

Slender, broom-like stems hold delicate snapdragon-like blooms. Herbaceous perennial; common name: Broom Toadflax.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial sun; thrives in dry, sunny exposures and tolerates heat
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Watering Allow soil to dry completely between waterings; highly drought-tolerant
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Temperature Hardy to mild frosts; performs best in warm, dry temperate climates
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Characteristics

  • Leaf: Narrow, linear, gray-green leaves arranged densely along upright stems
  • Flower: Snapdragon-like pale yellow to cream blooms clustered in terminal racemes
  • Stem: Woody, slender, broom-like branching stems with fine, upright growth habit
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Care Guide

Watering

Water sparingly when top 5 cm of soil is fully dry

Fertilization

Light, diluted balanced feed once monthly. Avoid heavy fertilization to prevent leggy growth

Crushed eggshell topdress:Sprinkle a thin layer of finely crushed eggshells on soil surface to boost calcium levels and improve drainage; avoid overapplication
Pruning
  • Remove spent flower spikes to encourage extended blooming
  • Trim back dead or damaged stems in late winter to promote new spring growth
  • Thin overcrowded stems to improve airflow and reduce disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No documented toxicity to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental for dry rock gardens and low-water landscapes