Papalo (Porophyllum ruderale)

Papalo

Porophyllum ruderale

Aromatic foliage carries bright citrusy notes, perfect for culinary use. Herbaceous annual; common names: papalo, yerba porosa.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun preferred; tolerates partial shade in extremely hot climates to prevent leaf scorch
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Watering Allow top 2–3 cm of soil to dry between waterings; highly drought-tolerant once established
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Temperature Thrives in warm temperate to tropical conditions; avoid frost and temperatures below 10°C
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Characteristics

  • Leaf: Bright green lanceolate leaves, strongly aromatic when crushed
  • Flower: Small yellow daisy-like composite flower heads
  • Stem: Slender, branching green to reddish stems
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Care Guide

Watering

Keep soil slightly moist but not waterlogged; prioritize drainage

Fertilization

Diluted balanced liquid feed every 2 weeks. Avoid over-fertilization to prevent excessive foliage growth with reduced aroma

Banana peel tea:Steep 1–2 chopped banana peels in 1 liter of water for 24 hours; strain and use as root drench to support flowering and foliage health
Pruning
  • Pinch stem tips when plants reach 15 cm tall to encourage bushier growth
  • Harvest young leaves regularly to promote continuous new growth
  • Remove spent flower heads to prevent unwanted self-seeding in garden beds
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no known adverse effects

Humans: Non-toxic to humans; safe for culinary consumption

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Garden Uses & Culture

Culture: N/A

Usage: Culinary herb (substitute for cilantro in Mexican and Central American cuisine); traditional medicinal uses for digestive support