Filamented Basil (Ocimum filamentosum)

Filamented Basil

Ocimum filamentosum

Delicate wispy blooms add soft texture to herb gardens. Aromatic annual herb; common name: Filamented Basil.

Full sun
2–3/week
Beginner
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Plant Needs

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Sunlight Requires 6–8 hours of direct sunlight daily for robust growth; tolerates partial shade in hot climates
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Watering Water when the top 2 cm of soil dries out; avoid overwatering to prevent root rot
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Temperature Thrives in warm temperatures; protect from frost as it is frost-tender
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Characteristics

  • Leaf: Small ovate to lanceolate leaves with serrated margins, aromatic when crushed
  • Flower: Tiny white to pale lavender blooms on long, filamentous inflorescences
  • Stem: Square, green, hairy stems characteristic of the mint family
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Care Guide

Watering

Keep soil consistently moist but not waterlogged; increase frequency during hot, dry spells

Fertilization

Diluted balanced liquid feed every 2 weeks. Avoid over-fertilizing to prevent leggy, less aromatic growth

Banana peel tea:Soak chopped banana peels in water for 3 days; dilute 1:10 before drenching soil; discard solids to avoid pest attraction
Pruning
  • Pinch back growing tips regularly to encourage bushier, more compact growth
  • Remove spent flower spikes to redirect energy to leaf production
  • Trim yellowing or damaged leaves to maintain plant health and appearance
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

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

Humans: No known toxic effects; leaves are safe for culinary consumption

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Garden Uses & Culture

Culture: N/A

Usage: Culinary herb for flavoring soups, salads, and sauces; ornamental border plant