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Gunnera

Gunnera manicata

outdoor

A dramatic architectural perennial with massive palmate leaves that can reach 5–6 feet across, creating a tropical effect in cool climates. This moisture-loving giant produces distinctive cone-like flower spikes and requires substantial space and consistent moisture. Ideal for bog gardens, waterside planting, and as a statement plant in large landscapes.

Gunnera

Common Problems

Select the problem your Gunnera is experiencing to get a treatment guide.

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Underwateringchevron_right
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Root Rotchevron_right
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Wiltingchevron_right
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Slow Growthchevron_right
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Brown Spotschevron_right

Care Guide

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Light
Partial shade to dappled sunlight; protection from harsh afternoon sun prevents leaf scorching
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Water
High moisture requirement; keep soil consistently wet or boggy. Plant beside water features or in low-lying areas
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Soil
Rich, moisture-retentive soil with high organic matter content; thrives in boggy conditions
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Fertiliser
Heavy feeding in spring with balanced fertilizer or manure; benefits from annual mulching
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Temperature
Prefers cool to moderate temperatures; mulch heavily in winter in cold zones for crown protection
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Humidity
High humidity essential; benefits from regular misting and consistently moist environment

Toxicity

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Leaves contain calcium oxalate crystals; can cause irritation if ingested by children. Sap may irritate sensitive skin

Common Diseases

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Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.