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Acanthus spinosus

Spiny Bear’s Breeches

Acanthus spinosus is a bold clump forming perennial admired for its deeply divided glossy green leaves and tall spikes of white flowers with purple bracts during summer. Its dramatic architectural appearance makes it a standout feature in borders, cottage gardens, and Mediterranean style landscapes. Easy to grow in New Zealand conditions, it provides long lasting structure, seasonal colour, and attracts bees and other beneficial pollinators.

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Suited to regions:All regions
Plant type:Perennials
Height:90 cm
Spread:70 cm
Flowering time:Spring, Summer
Tolerances:Hardy
Garden uses:Borders, Paths & Steps, Pool areas
Garden styles:Backyard, City & Courtyard, Frontyard, Japanese, Modern
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asSpiny Bear’s Breeches
Sku15451

How to grow Acanthus spinosus in NZ

Acanthus spinosus grows best in full sun or partial shade with fertile, well drained soil enriched with organic matter. Water regularly while establishing, then only during extended dry periods. Apply a balanced fertiliser in spring to encourage vigorous growth and abundant flowering.

Acanthus spinosus care tips

Remove spent flower spikes after flowering to keep plants tidy and cut old foliage back in late winter before fresh growth appears. Mulch annually to conserve soil moisture while keeping mulch away from the crown. Divide established clumps every few years if required.

Acanthus spinosus size, spacing, and growth rate

Acanthus spinosus typically grows 80 centimetres to 1.2 metres tall and 60 to 90 centimetres wide. Space plants around 70 centimetres apart to allow good airflow and room for the clumps to develop. Growth is moderate, forming an impressive specimen over time.

Landscaping uses for Acanthus spinosus

Acanthus spinosus is ideal for mixed borders, cottage gardens, Mediterranean style gardens, woodland edges, and architectural plantings. Its bold foliage provides year round interest while the tall flower spikes add height and attract pollinators during summer.

Why buy Acanthus spinosus from The Plant Company?

The Plant Company is NZ’s most trusted plant nursery, supplying premium quality perennials that are carefully grown for outstanding garden performance. Every Acanthus spinosus is selected for health and vigour before dispatch so it arrives ready to establish successfully. Our experienced team provides expert advice, fast nationwide delivery, and dependable customer service.

Questions and Answers

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