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Bear's Breeches Acanthus

Acanthus mollis
$7.25
A herbaceous perennial, growing 4 feet in height and 3 across. Grows large green leaves with clusters of white flowers on long stalks. Hardy in zones 7-11. Flowering in summer and fall, the Bear's Breeches Acanthus is a perfect addition to Texas beds and borders.
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Product Details

Bear's Breeches Acanthus

Acanthus mollis

The Bear's Breeches Acanthus is a herbaceous perennial loved for its unique look. It grows 4 feet in height and 3 feet across. This flowering plant features dark green foliage, composed of large, ragged leaves. Plus, the Bear's Breeches Acanthus produces clusters of downturned white flowers that grow along tall stalks. It's great as an accent in mixed plantings or scattered along borders.

  • A herbaceous perennial
  • Fast growth rate
  • Large emerald leaves and clusters of white flowers
  • Blooms in summer through fall
  • Quite hardy

The Bear's Breeches Acanthus loves full sun, but it will grow well in partial shade as well. When planting, freely choose a spot with average soil, as long as it drains well. This hardy plant feels right at home in zones 7 through 11, making it a great choice for arid Texas weather. To maintain its beauty and shape, trim old leaves and spent flower stalks as necessary.


Bear's Breeches Acanthus graces your landscape with years of beauty with very little care. Here’s all it needs:

  • Watering: Water regularly during the first growing season to help roots establish deeply. Once mature, Bear’s Breeches tolerates moderate drought but performs best with consistent moisture during the active growing season. Avoid soggy soil to prevent root issues.
  • Pruning: Cut back spent flower stalks after blooming to tidy the plant and encourage continued foliage growth. In late autumn or early winter, trim back all top growth to near ground level after frost blackens the leaves. New shoots will reemerge in spring.
  •  Fertilizing: Feed in early spring with a balanced, slow-release fertilizer or compost to support strong leaf and flower development. Avoid overfertilization, which can lead to floppy growth and reduced flowering.
  •  Mulching: Apply a 2-3 inch layer of organic mulch around the base to retain soil moisture and regulate temperature. Keep mulch a few inches away from the crown to prevent rot. Refresh annually to suppress weeds and enrich the soil.
  •  Winter Care: In mild climates, Bear’s Breeches remains semi-evergreen; in colder regions, it dies back and regrows from the roots each spring. 

Bear’s Breeches is resilient and reliable but can experience a few occasional issues:

  •  Powdery Mildew: A white, powdery fungus that appears on leaves in humid conditions. Improve airflow, avoid overhead watering, and remove affected foliage to prevent spread.
  •  Snails and Slugs: Common in damp, shaded gardens, they chew holes in the large leaves. Hand-pick at night or use organic slug bait to control them.
  •  Crown Rot: Caused by poor drainage or excess moisture around the base. Plant in well-drained soil and avoid overwatering.
  •  Rust: Manifests as orange pustules on the undersides of leaves. Remove and discard infected foliage and apply a copper-based fungicide if needed.
  •  Aphids: Small sap-sucking insects that can cluster on flower spikes. Spray with water or insecticidal soap to keep them under control.

With proper care, it can thrive for 10-20 years or longer, returning reliably each season from its hardy roots. Established clumps often become more dramatic with age, producing taller flower spikes and denser foliage.

It grows at a moderate rate, typically reaching full maturity within 2-3 years. Once established, it spreads slowly through underground rhizomes, forming an impressive clump over time.

Yes, but large, deep pots are required to accommodate its strong roots. Use a well-draining potting mix and water regularly during warm months for best results.

Yes - its tall flower spikes attract bees, butterflies, and even hummingbirds. The blossoms provide nectar through summer and add a stately vertical accent to mixed borders.

Yes - the coarse, slightly prickly leaves are unappealing to most browsing animals. It’s a good choice for gardens in deer-prone areas.

Yes. It tolerates salt spray and windy exposures very well, making it suitable for coastal Mediterranean-style gardens.

Yes - divide clumps every 3-5 years in spring or autumn. Dig up part of the root mass, replant divisions immediately, and water well to establish.

Not typically, but it can slowly expand by underground roots in ideal conditions. Occasional division keeps growth contained and manageable.

Exceptionally well. Its sculptural foliage and tall bloom spikes make it a striking choice for courtyards, entryways, and classical garden designs.

Its combination of architectural foliage, towering floral spikes, and historical pedigree set it apart. Bear’s Breeches inspired the ornate acanthus leaf motif found in Corinthian columns, giving it a legacy of beauty that spans thousands of years.

Special Features

Drought Tolerance
Fragrant Flowers
Beautiful Blooms
Adaptable and Low-Maintenance
Eye-catching Flowers
Leaf Retention:Herbaceous
Scientific Name:Acanthus mollis
Sun Needs:Full Sun or Partial shade
Maturity:4' H x 3' W
Leaf Color:Delicate white blooms adorn this plant in spring, followed by vibrant yellow foliage in autumn.
Flower Color:White
Bloom Times:Summer & Fall

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Bear's Breeches Acanthus
Bear's Breeches Acanthus

This plant

Scientific NameAcanthus mollisTeucrium aroanium
Size at Maturity4' H x 3' W0.25' H x 1.5' W
Leaf RetentionHerbaceousHerbaceous
Flower ColorWhitePurple & White
Bloom TimesSummer & FallSpring & Summer
Sizes Available1 Gal1 Gal
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