Empress of India Nasturtium (Tropaeolum majus 'Empress Of India')

Empress of India Nasturtium

Tropaeolum majus 'Empress Of India'

Vibrant scarlet blooms glow against blue-green foliage, a cheerful garden staple. Trailing or bushy annual flowering plant.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; thrives in sunny locations with minimal afternoon shade in hot climates
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Watering Water deeply when the top 2 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Prefers cool to temperate temperatures; tolerates light frost but may wilt in extreme heat above 28°C
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Characteristics

  • Leaf: Round, peltate blue-green leaves with long petioles, resembling miniature lily pads
  • Flower: Bright scarlet, funnel-shaped blooms with spurred nectaries and five distinct petals
  • Stem: Succulent, fleshy trailing or upright stems with a smooth texture
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Care Guide

Watering

Keep soil evenly moist but not waterlogged; reduce frequency during prolonged heatwaves

Fertilization

No regular fertilization needed; avoid high-nitrogen feeds. Poor soil encourages more abundant blooms than lush foliage growth

Eggshell powder top dressing:Sprinkle a thin layer of crushed, dried eggshells around the base to add calcium without overfeeding the plant
Pruning
  • Deadhead spent blooms regularly to promote continuous flowering throughout the growing season
  • Trim overgrown trailing stems to maintain a compact, tidy shape
  • Remove yellowing or damaged leaves to improve airflow and reduce disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no known adverse effects from ingestion

Humans: Non-toxic; leaves and flowers have a peppery, edible flavor

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Garden Uses & Culture

Culture: Symbolizes patriotism and courage; often used in cottage garden designs for its cheerful blooms

Usage: Ornamental garden plant; edible flowers and leaves add a peppery, watercress-like flavor to salads and garnishes