Field Scabious (Knautia arvensis)

Field Scabious

Knautia arvensis

Dainty pincushion blooms attract pollinators, a soft splash of purple in meadows. Perennial wildflower; common name: Field Scabious.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates dry, exposed meadow conditions
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Watering Drought-tolerant; water only during prolonged dry spells, avoid overwatering to prevent root rot
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Temperature Hardy to -20°C; withstands cold winters and warm summer heat without special protection
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Characteristics

  • Leaf: Basal rosette of lanceolate, slightly hairy leaves; stem leaves are deeply lobed
  • Flower: Pincushion-shaped composite blooms in pale purple to lavender; individual florets are tiny and tubular
  • Stem: Erect, slender, hairy stems branching near the top
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Care Guide

Watering

Water occasionally during dry spells; let soil fully dry between waterings

Fertilization

Apply diluted compost tea once early spring to support growth. No regular fertilization needed for established plants

Composted banana peel tea:Steep fully composted banana peels in water for 3 days; dilute 1:20 for root drench; avoid raw peels to prevent pest infestations
Pruning
  • Deadhead spent blooms regularly to encourage prolonged flowering
  • Cut back stems to ground level in late autumn to prepare for winter dormancy
  • Thin overcrowded clumps every 2–3 years to improve airflow and reduce disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no known toxic compounds

Humans: Non-toxic to humans; no reported adverse effects from ingestion or contact

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Garden Uses & Culture

Culture: N/A

Usage: Pollinator-friendly wildflower; used in meadow restoration and native plant gardens