Jacobean Lily (Sprekelia formosissima)

Jacobean Lily

Sprekelia formosissima

Its crimson trumpet blooms burn like a tropical torch. Bulbous flowering perennial; common names: Jacobean Lily, Aztec Lily.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Requires bright direct sunlight for 6–8 hours daily to encourage blooming; tolerate partial shade during hot midday hours
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Watering Water thoroughly during active growth, allowing the top 2 cm of soil to dry between waterings to prevent bulb rot
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Temperature Thrives in 18–25°C during growing season; tolerate down to 10°C during dormancy, avoid frost exposure
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Characteristics

  • Leaf: Linear strap-like dark green foliage, emerges after flowering finishes
  • Flower: Trumpet-shaped bright crimson red bloom, 10–15 cm long, single per stem
  • Bulb: Underground tunicate bulb that enters dormancy in cool, dry periods
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Care Guide

Watering

Keep soil consistently moist but not waterlogged during active growth

Fertilization

Diluted balanced liquid feed every 2 weeks. Avoid fertilizing during dormancy to prevent bulb damage

Eggshell powder top dressing:Crush dried eggshells into fine powder, sprinkle 1 teaspoon around the bulb base, and water gently to release calcium into the soil
Pruning
  • Remove spent flower stalks after blooming to redirect energy to bulb growth
  • Trim fully browned foliage during dormancy to maintain a tidy appearance
  • Remove damaged or rotting bulb scales when repotting in early spring
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed toxic; contains lycorine, causing vomiting, diarrhea, abdominal pain, and lethargy

Humans: Contains lycorine alkaloids; large ingestion causes mild gastrointestinal upset

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Garden Uses & Culture

Culture: Symbolizes passion and vibrant beauty in floral arrangements

Usage: Ornamental garden plant, cut flower for bouquets and floral displays