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Acanthus mollis (Bears Breeches, Oyster Plant)

Bears Breeches, Oyster Plant

Acanthus mollis, known as Bears Breeches or Oyster Plant, is a bold and striking perennial that adds a touch of elegance to NZ gardens. It features large, glossy, lobed leaves and tall flower spikes adorned with white and purple blooms in summer. This easy-care plant thrives in a variety of conditions and makes a stunning statement in shaded or partially sunny garden areas.

Acanthus mollis perennial with purple-white flowers above lush, green foliage.
Acanthus mollis perennial for sale at The Plant Company nursery.
Acanthus mollis purple-white flowers.

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Suited to regions:All regions
Plant type:Perennials
Height:80 cm
Spread:80 cm
Flowering time:Spring, Summer
Tolerances:Coastal, Hardy, Shade
Garden uses:Borders, Paths & Steps, Pool areas
Garden styles:Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Modern
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asBears Breeches, Oyster Plant
Sku10565

How to grow Acanthus mollis (Bears Breeches, Oyster Plant) in NZ

Growing Acanthus mollis (Bears Breeches, Oyster Plant) in NZ is simple and rewarding. It prefers a position in part shade with moist, well-drained soil. Once established, it tolerates dry periods and performs well in coastal or sheltered gardens. Plant it in a spot where its bold foliage can be showcased. Regular watering during dry months will keep it lush and healthy, and it grows well across most NZ climates.

Acanthus mollis (Bears Breeches, Oyster Plant) care tips

Acanthus mollis (Bears Breeches, Oyster Plant) requires minimal care to thrive. Water regularly in summer, especially during extended dry spells, and apply mulch annually to retain moisture. Remove spent flower spikes to encourage new growth. If leaves die back in winter, trim them to ground level to tidy the plant. It benefits from an occasional feed in spring with a balanced fertiliser to promote vigorous leaf and flower production.

Acanthus mollis (Bears Breeches, Oyster Plant) size, spacing, and growth rate

Acanthus mollis (Bears Breeches, Oyster Plant) forms a clump up to 1.2 metres tall and 1 metre wide. Space plants around 80–100 cm apart to allow room for spreading foliage. Its growth rate is moderate, but once established, it can form large, lush clumps that return reliably each year. The plant spreads via underground roots, so it’s best suited to spaces where it can expand without crowding other plants.

Landscaping uses for Acanthus mollis (Bears Breeches, Oyster Plant)

Acanthus mollis (Bears Breeches, Oyster Plant) is a stunning choice for shaded borders, woodland gardens, and underplanting larger trees or shrubs. Its dramatic foliage provides an excellent contrast to fine-leaved plants and grasses. It’s ideal as a background feature, accent plant, or for creating architectural structure in garden beds. This classic perennial pairs beautifully with ferns, hostas, and hydrangeas in NZ landscapes.

Why buy Acanthus mollis (Bears Breeches, Oyster Plant) from The Plant Company?

The Plant Company is NZ’s most trusted plant nursery, offering top-quality Acanthus mollis (Bears Breeches, Oyster Plant) plants grown to perform in New Zealand conditions. Each plant is nurtured for strong root growth and lush foliage. We provide fast NZ-wide delivery, safe packaging, and expert aftercare support. Buying from The Plant Company ensures healthy plants, outstanding service, and lasting value for your garden.

Questions and Answers

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