Tuberose
Polianthes tuberosa
Double
About this plant
Polianthes tuberosa, or tuberose, is a perennial plant known for its tall spikes of highly fragrant white flowers. It is widely grown for its sweet scent used in perfumes and as an ornamental garden plant. The flowers bloom in late summer to fall and are often used in floral arrangements and traditional ceremonies.
Taxonomy
- Genus
- Polianthes
- Family
- Asparagaceae
- Higher classification
- Asparagales
- Plant type
- Perennial
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Mexico
- Distribution
- Native to Mexico, tuberose is now cultivated worldwide in warm climates and as a summer bulb in temperate regions.
Care
- Light preference
- Full sun
- Suitable locations
- Outdoor, Greenhouse, Balcony
- Preferred window facing
- South-facing, West-facing
- Watering frequency
- Moderate
- Watering interval
- 3–7 days
- Humidity
- Normal
- Minimum
- 10 °C
- Maximum
- 35 °C
- Optimal
- 18–28 °C
- USDA hardiness zones
- 8–11
- Soil pH
- 6.0–7.5
- Soil type
- well-draining loam
Watering. Water regularly during the growing season to keep soil moist but not soggy. Reduce watering after flowering and during dormancy.
Fertilizing. Feed tuberose plants with a balanced fertilizer every 4 to 6 weeks during the growing season to encourage healthy growth and abundant flowering.
Tuberose is a moderately easy plant to care for, thriving in sunny spots with well-draining soil. It needs regular watering during the growing season but should not be overwatered to avoid root rot. It may require lifting and storing bulbs in colder climates during winter.
Propagation
- Propagation methods
- Seeds, Division
- Care difficulty
- Medium
Ornamental features
- Flowering
- Yes
- Flowering period
- summer–fall
Tall spikes of fragrant white flowers with narrow, grass-like leaves.
Toxicity & Safety
- Toxic to humans
- Non-toxic
- Toxic to pets
- Non-toxic
- Weed potential
- Not considered a weed
Tuberose is generally non-toxic but avoid ingestion of bulbs. Skin contact with sap may cause mild irritation in sensitive individuals.
Allergy information
- Allergy risk
- Moderate
- Allergy triggers
- Pollen, Fragrance
- Pollen level
- Moderate
Polianthes tuberosa, commonly known as tuberose, produces fragrant flowers that can trigger allergies in sensitive individuals, especially due to its strong scent and pollen. People prone to fragrance or pollen allergies may experience sneezing, runny nose, or skin irritation. To reduce exposure, keep the plant in well-ventilated areas and avoid direct contact with the flowers if you are sensitive.
Common problems
Overwatering can cause bulb rot, while too little sunlight may reduce flowering. Pests like aphids or fungal diseases can occasionally affect the plant if conditions are too damp.
Uses
Grown mainly for its fragrant flowers used in perfumes and ornamental gardens. Also popular in cut flower arrangements.
Notes
In colder climates, dig up the bulbs after foliage dies back and store them in a cool, dry place over winter. Repot or divide bulbs every few years to maintain vigor.