Star Sister Dahlia (Dahlia 'Star Sister')

Star Sister Dahlia

Dahlia 'Star Sister'

Ruffled star-shaped blooms glow like summer confetti. Herbaceous flowering perennial; common name: Star Sister Dahlia.

Full sun
2–3/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; requires at least 6 hours of direct sunlight for abundant blooming
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Watering Water deeply when top 2–3 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Thrives in 15–25°C; protect from frost as it is not cold-hardy
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Characteristics

  • Leaf: Opposite, serrated, dark green ovate leaves with pointed tips
  • Flower: Double, star-shaped blooms in pastel pink or lavender with ruffled petals
  • Stem: Erect, green, slightly succulent stems with branching growth
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Care Guide

Watering

Keep soil consistently moist during active growth

Fertilization

Feed with balanced diluted fertilizer every 2 weeks. Stop fertilizing 4 weeks before first expected frost

Banana peel compost tea:Steep fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to support flowering
Pruning
  • Deadhead spent blooms regularly to encourage continuous flowering
  • Cut back stems to 10 cm above soil after first frost for winter dormancy
  • Thin overcrowded stems in early spring to improve airflow and light penetration
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no harmful effects if ingested

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

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Garden Uses & Culture

Culture: Symbolizes elegance and dignity; popular in cut flower arrangements

Usage: Ornamental garden plant; cut flower for bouquets