Angular Lobelia (Lobelia angulata)

Angular Lobelia

Lobelia angulata

Delicate trailing stems carry tiny blue blooms like scattered sky fragments. Low-growing herbaceous perennial; common name: angular lobelia.

Partial sun
2–3/week
Moderate
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Plant Needs

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Sunlight Bright indirect light; tolerates partial shade; avoid intense midday sun to prevent leaf scorch
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Watering Keep soil consistently moist but not waterlogged; avoid allowing the substrate to dry out completely
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Temperature Thrives in cool to temperate temperatures; protect from frost below 5°C to prevent foliage damage
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Characteristics

  • Leaf: Small, linear to oblong leaves with angular margins, bright green
  • Flower: Tiny, five-petaled blue to pale violet blooms, clustered at stem tips
  • Stem: Slender, creeping, angular stems that root at nodes
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Care Guide

Watering

Keep soil evenly moist; mist lightly to maintain ambient humidity

Fertilization

Diluted balanced feed every 2 weeks. Use diluted liquid fertilizer to avoid burning delicate root systems; cease feeding in winter

Banana peel compost tea:Compost banana peels fully to eliminate odor and pathogens; dilute 1:20 with water for root drenching
Pruning
  • Trim spent blooms regularly to encourage continuous flowering
  • Thin overcrowded stems to improve airflow and reduce disease risk
  • Cut back leggy growth in late summer to promote compact, bushy growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; may cause vomiting, diarrhea, lethargy, or excessive drooling

Humans: Contains lobeline alkaloids; ingestion may cause nausea, dizziness, or oral irritation

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Garden Uses & Culture

Culture: N/A

Usage: Ground cover in moist garden beds; hanging basket ornamental for trailing foliage and blooms