Garden Petunia (Petunia hybrid)

Garden Petunia

Petunia hybrid

Vibrant trumpet blooms paint borders with cheerful color. Herbaceous flowering annual; common name: garden petunia.

Full sun
2–3/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; 6–8 hours of direct sun daily for optimal blooming performance
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Watering Water when the top 2–3 cm of soil feels dry; avoid overwatering to prevent root rot
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Temperature Thrives in 15–25°C; protect from frost as temperatures below 10°C can cause leaf damage
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Characteristics

  • Leaf: Simple, oval to lanceolate, soft green, slightly sticky texture from glandular hairs
  • Flower: Trumpet-shaped, 5–10 cm wide; single or double blooms in solid or variegated hues
  • Stem: Succulent, branching, covered in fine glandular hairs
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Care Guide

Watering

Keep soil consistently moist but not waterlogged to support active growth and blooming

Fertilization

Apply diluted balanced liquid fertilizer every 2 weeks to support flowering. Discontinue fertilization in late autumn as growth ceases

Banana peel tea:Soak 1 chopped banana peel in 1 liter of water for 24 hours, strain, and use to water plants; avoid overapplication to prevent nutrient buildup
Pruning
  • Deadhead spent blooms regularly to encourage continuous flowering throughout the growing season
  • Pinch back young stems by 2–3 cm when seedlings reach 10 cm tall to promote bushier growth
  • Trim leggy stems mid-season to maintain a compact, mounding form
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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 effects from ingestion or contact

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Garden Uses & Culture

Culture: Symbolized anger in Victorian floriography; now widely associated with cheerfulness and summer vibrancy

Usage: Ornamental garden plant, container plant, hanging basket filler