Yellow Cudweed (Filago lutescens)

Yellow Cudweed

Filago lutescens

Soft woolly foliage glows pale yellow in sun, a delicate wild ground cover. Annual herbaceous wildflower; common name: Yellow Cudweed.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Prefers full sun to partial shade; tolerates reflected heat and dry, exposed growing conditions
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Watering Drought-tolerant; water only during extended periods of extreme dryness to avoid root rot
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Temperature Hardy to light frost (down to 5°C); thrives in warm, sunny temperate climates
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Characteristics

  • Leaf: Narrow linear leaves covered in dense white-woolly hairs, arranged in basal rosettes and alternate on stems
  • Flower: Clustered pale yellow capitula, small and tightly packed, lacking showy ray florets
  • Stem: Slender, erect to ascending stems covered in woolly pubescence
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Care Guide

Watering

Water sparingly only when top 5 cm of soil is completely dry

Fertilization

No regular fertilization needed. Excess fertilizer can cause leggy growth and reduce flowering

Crushed eggshell powder:Crush clean, dried eggshells to fine powder and dust lightly on soil surface to add calcium without over-fertilizing the low-nutrient preferred substrate
Pruning
  • Deadhead spent flower heads to prevent unwanted self-seeding if desired
  • Remove faded, brown foliage after the plant senesces in late summer
  • Avoid heavy pruning as the low-growing habit requires minimal maintenance
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: No known toxic effects on cats (ASPCA unlisted, no documented cases)

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Wildflower garden ground cover, rockery accent, pollinator support for small bees