Crocosmia

Crocosmia × crocosmiiflora

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verifiedReviewed by the GreenScout Team

A stunning summer-flowering perennial with arching sprays of fiery orange, red, or golden flowers that emerge from sword-like green or bronze foliage. The graceful flowers bloom in succession along the stem, and the dried seed pods remain attractive into winter. This hybrid is vigorous, low-maintenance, and excellent for cutting and adding architectural interest to borders.

Common Problems

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

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Root Rotchevron_right

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Overwateringchevron_right

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Wiltingchevron_right

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Yellow Leaveschevron_right

Care Guide

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Light

Full sun to partial shade; needs 6+ hours of sun daily for optimal flowering. More shade tolerance in warmer zones

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Water

Moderate watering during growing season; keep soil moist but not waterlogged. Reduce watering after blooming. Drought-tolerant once established

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Soil

Well-draining, fertile soil enriched with organic matter. Tolerates a wide pH range (6.0–7.5). Poor drainage causes corm rot

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Fertiliser

Apply balanced fertilizer in spring and again in early summer. Avoid excessive nitrogen which reduces flowering

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Temperature

Warm-season grower; thrives in 18–25°C. Prefers areas with warm summers; may struggle in very cold regions

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Humidity

Moderate humidity; prefers drier conditions once established. Good air circulation reduces disease risk

Toxicity

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Non-toxic; safe for households with children and pets

Common Diseases

filter_dramaRoot Rotchevron_right grainLeaf Spotchevron_right spaBotrytis Blightchevron_right

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.

Frequently Asked Questions

Why do my Crocosmia flowers open in sequence rather than all at once?

The graceful flowers bloom in succession along the arching stem, which extends the display over a longer period rather than a single burst of bloom.

Why is my Crocosmia rotting instead of thriving?

Poor drainage causes corm rot — make sure the well-draining, fertile soil doesn't stay waterlogged, especially after blooming when watering should be reduced.