Twinflower Angelonia (Angelonia biflora)

Twinflower Angelonia

Angelonia biflora

It blooms in delicate spires, a soft splash of purple in warm gardens. Herbaceous flowering perennial; common name: Twinflower Angelonia.

Full sun
2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial sun; requires at least 6 hours of direct sunlight for optimal blooming and compact growth
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Watering Water thoroughly when the top 2 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Thrives in warm temperatures; protect from frost below 10°C to prevent foliage damage
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Characteristics

  • Leaf: Narrow, lance-shaped, glossy green leaves arranged oppositely along stems
  • Flower: Small, two-lipped purple or lavender paired blooms in terminal spires
  • Stem: Slender, upright green stems with minimal branching
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Care Guide

Watering

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

Fertilization

Diluted balanced feed every 2 weeks. Cease fertilization in late autumn to prepare the plant for dormancy

Banana peel liquid fertilizer:Soak dried banana peels in water for 3 days, dilute 1:10 for root drench; discard solids to avoid pest infestations
Pruning
  • Deadhead spent flower spires to encourage continuous blooming throughout the growing season
  • Trim leggy stems in mid-summer to maintain a compact, mounding habit
  • Remove yellowing or damaged foliage to improve airflow and plant appearance
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported toxicity

Humans: Non-toxic to humans; no known adverse health effects from ingestion or contact

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental bedding plant, container plant for patios and window boxes