Chilean Prickly Rhubarb (Gunnera tinctoria): Giant Prehistoric Foliage for Watersides

Gunnera tinctoria Overview

Gunnera tinctoria is a dramatic, tropical-looking perennial with enormous, puckered leaves reaching 6 feet or more across. Emerging in spring, the foliage creates a prehistoric presence at watersides or in greenhouses. In late spring, robust stalks bear brownish-bronze inflorescences. Evergreen in frost-free areas; in cooler climates, move indoors before frost.

Growing Requirements

• Light: Part shade to full shade
• Soil: Rich, damp, well-draining
• Temperature: Prefers cooler conditions
• Size: 8–10 feet tall and wide

Care & Maintenance

Remove dead/damaged leaves carefully (spines present). Trim to ground each winter to rejuvenate. Feed with controlled-release fertilizer. Overwinter tubers in cool, dry, frost-free location. Information provided by Monrovia.