Bear's Breeches (Acanthus mollis)

Bear's Breeches

Acanthus mollis

Its bold, ruffled leaves frame dramatic spires of white-and-purple blooms. Herbaceous perennial; common name: Bear's Breeches.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Partial to full sun; tolerates light shade, with best growth in morning sun and afternoon shade in hot climates
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Watering Water deeply when the top 5–7 cm of soil dries out; avoid waterlogging to prevent root rot
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Temperature Hardy to -10°C; thrives in temperate climates, with protection from extreme summer heat
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Characteristics

  • Leaf: Large, glossy evergreen leaves with deeply lobed, ruffled edges, dark green in color
  • Flower: Tall erect spikes bearing white tubular flowers accented with purple bracts
  • Stem: Thick fleshy basal stems that support foliage and flower spikes
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Care Guide

Watering

Keep soil consistently moist during active growth

Fertilization

Apply balanced slow-release fertilizer once. Avoid high-nitrogen fertilizers to prevent excessive foliage growth over flowering

Composted banana peel tea:Use fully composted banana peels, dilute 1:20 with water for root drench; avoid applying undiluted peels to prevent pest issues
Pruning
  • Remove spent flower spikes after blooming to maintain tidy clumps and encourage potential secondary blooms
  • Trim yellowing or damaged foliage in early spring to refresh the plant
  • Divide overcrowded clumps every 3–4 years in early spring to promote healthy growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms no toxicity to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: Symbolizes endurance and artistic inspiration, featured in classical Greek and Roman architectural capitals

Usage: Ornamental garden plant; flower spikes used in cut floral arrangements