Giant Peruvian Daffodil (Paramongaia weberbauerii)

Giant Peruvian Daffodil

Paramongaia weberbauerii

A stunning, rare Andean bulbous plant boasting massive, fragrant, daffodil-like yellow flowers. Geophytic ornamental.

Requires full sun to partial shade during its active growing season.
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Plant Needs

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Sunlight Requires full sun to partial shade during its active growing season.
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Watering Requires regular watering during growth, but strict absolute dryness during its long dormancy period.
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Temperature Prefers warm growing conditions and must be protected from frost.
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Characteristics

  • Leaves: Glaucous, strap-shaped (lorate) leaves that emerge during the growing season and die back completely during dormancy;
  • Flowers: Solitary, massive (up to 15 cm across), bright yellow, strongly fragrant, featuring a prominent staminal corona resembling a giant Narcissus;
  • Bulb: Large, subterranean tunicated bulb adapted to surviving prolonged dry seasons in its native habitat.
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Care Guide

Watering

Water thoroughly when the soil is dry to the touch during active leaf and flower growth.

Fertilization

Apply a low-nitrogen, high-potassium fertilizer when growth emerges.. Feed sparingly to support bulb regeneration without encouraging weak, leggy foliage.

Banana Peel Tea:Steep chopped banana peels in water for 24 hours. Dilute 1:1 with water and apply during the active growing season to support large blooms and bulb health. Discard solids in compost to avoid attracting pests.
Pruning
  • Remove spent flowers to prevent seed formation if bulb vigor is prioritized;
  • Crucially, allow all leaves to yellow and wither naturally so nutrients return to the bulb;
  • Never cut green foliage.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Toxic to cats; ingestion of the bulb or leaves can cause gastrointestinal and neurological issues.

Humans: Mildly toxic if ingested due to lycorine and other alkaloids common in the Amaryllidaceae family.

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Garden Uses & Culture

Culture: Highly coveted by rare bulb collectors in Europe and the Americas for its spectacular, oversized blooms that rival traditional daffodils.

Usage: - Cultivated as a specimen plant in alpine houses and specialized bulb collections; - Grown in terracotta pots to ensure rapid soil drying.