Princess Flower (Tibouchina urvilleana)

Princess Flower

Tibouchina urvilleana

Vibrant purple blooms glow like velvet gems against deep green foliage. Evergreen flowering shrub.

Full sun
1–2/week
Moderate
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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 flowering; provide afternoon shade in extreme heat
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Watering Water deeply when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot and fungal growth
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Temperature Thrives in 18–27°C; protect from frost below 10°C as foliage may suffer damage
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Characteristics

  • Leaf: Oval, velvety deep green leaves with prominent veins and purple undersides
  • Flower: Large, vivid purple five-petaled blooms with golden, fuzzy stamens
  • Stem: Woody, branching stems covered in fine brownish hairs
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Care Guide

Watering

Keep soil evenly moist; increase frequency during prolonged hot, dry periods

Fertilization

Feed every 2 weeks with a balanced acidic fertilizer. Avoid fertilizing during winter dormancy to prevent nutrient buildup

Coffee grounds compost tea:Steep fully composted coffee grounds in water for 24 hours; dilute 1:20 to maintain soil acidity without burning shallow roots
Pruning
  • Prune lightly immediately after flowering to shape the shrub and encourage new growth for next season
  • Remove dead, damaged, or crossing branches to improve airflow and reduce disease risk
  • Trim back overgrown stems in early spring to maintain a compact, bushy form
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms no toxicity to cats

Humans: No toxic effects reported for human ingestion or contact

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Garden Uses & Culture

Culture: Symbolizes admiration and regal beauty due to its striking purple blooms

Usage: Ornamental garden shrub; container plant for patios and bright indoor spaces