Tuberose (Polianthes tuberosa)

Tuberose

Polianthes tuberosa

Its night-blooming fragrance wraps gardens in soft warmth. Fragrant flowering perennial; common name: tuberose.

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 optimal flowering
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Watering Water thoroughly when top 2–3 cm of soil is dry; avoid waterlogging to prevent root rot
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Temperature Thrives in warm temperatures 18–27℃; protect from frost below 10℃
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Characteristics

  • Leaf: Linear, strap-shaped, bright green leaves arranged in basal rosettes
  • Flower: Waxy, white, tubular flowers arranged in dense terminal spikes; highly fragrant, opening at night
  • Stem: Erect, smooth green stem bearing flower spikes
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Care Guide

Watering

Keep soil consistently moist during active growth and flowering

Fertilization

Feed every 2 weeks with balanced liquid fertilizer. Avoid over-fertilizing to prevent excessive foliage growth at the expense of flowers

Banana peel compost tea:Soak fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to promote bloom production and healthy tuber development
Pruning
  • Deadhead spent flower spikes to redirect energy to underground tuber development
  • Remove yellowing basal leaves to maintain plant health and improve airflow
  • Dig up and divide tubers in late autumn for overwintering in regions with freezing temperatures
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic to cats

Humans: No known toxic effects to humans

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Garden Uses & Culture

Culture: Symbolizes love and sensuality in floral arrangements; widely used in perfumery for its intense fragrance

Usage: Ornamental garden plant; cut flower for bouquets; fragrance source for cosmetics and candles