Pacific Black Snakeroot (Sanicula crassicaulis)

Pacific Black Snakeroot

Sanicula crassicaulis

Its glossy basal leaves form a low, lush rosette, a quiet groundcover for shaded woodlands. Herbaceous perennial; common name: Pacific Black Snakeroot.

Low light
1–2/week
Moderate
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Plant Needs

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Sunlight Prefers dappled woodland shade; avoid direct midday sun which can scorch leaves
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Watering Keep soil consistently moist but not waterlogged; mulch to retain soil moisture
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Temperature Thrives in cool temperate conditions; tolerates mild light frost without significant damage
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Characteristics

  • Leaf: Basal leaves are glossy, rounded to kidney-shaped with serrated margins; stem leaves smaller and divided
  • Flower: Tiny greenish-white flowers in compact umbels clustered into dense, rounded heads
  • Stem: Thick, fleshy, hairy stems that branch near the top of the plant
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Care Guide

Watering

Maintain even soil moisture; water when top 1 cm of soil feels dry

Fertilization

Apply diluted organic liquid feed once monthly. Use nitrogen-rich organic feeds to promote lush foliage growth in early spring

Composted banana peel tea:Soak fully composted banana peels in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pest infestations
Pruning
  • Deadhead spent flower heads to prevent unwanted self-seeding
  • Trim yellowing basal leaves to maintain a tidy rosette appearance
  • Divide overcrowded clumps every 2–3 years in early spring to promote healthy growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No listed toxicity to cats

Humans: No documented toxic effects for human ingestion or contact

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Garden Uses & Culture

Culture: N/A

Usage: Native groundcover for shaded pollinator gardens; supports local bee species