Lisianthus
Eustoma grandiflorum
Grandiflorum
About this plant
Eustoma grandiflorum, commonly called lisianthus, is a beautiful flowering plant known for its rose-like blooms in shades of white, pink, purple, and blue. It is popular in floral arrangements and gardens for its elegant, long-lasting flowers. Lisianthus is native to warm regions and is appreciated for its delicate appearance and relatively easy care.
Taxonomy
- Genus
- Eustoma
- Family
- Gentianaceae
- Higher classification
- Gentianales
- Plant type
- Perennial
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Southwestern United States, Mexico, and northern South America
- Distribution
- Widely cultivated worldwide, especially in gardens and as cut flowers in North America, Europe, and Asia.
Care
- Light preference
- Partial sun
- Suitable locations
- Indoor, Outdoor, Balcony, Greenhouse
- Preferred window facing
- East-facing, South-facing, West-facing
- Watering frequency
- Moderate
- Watering interval
- 3–7 days
- Humidity
- Normal
- Minimum
- 10 °C
- Maximum
- 30 °C
- Optimal
- 18-24 °C
- USDA hardiness zones
- 8-10
- Soil pH
- 6.0-7.0 (neutral to slightly acidic)
- Soil type
- well-draining loam, rich in organic matter
Watering. Water lisianthus regularly to keep the soil evenly moist but not soggy. Allow the top inch of soil to dry out between waterings to prevent root rot.
Fertilizing. Feed lisianthus plants every 4-6 weeks during the growing season with a balanced, water-soluble fertilizer to support healthy growth and flowering.
Lisianthus plants are moderately easy to care for. They prefer bright light but not harsh direct sun all day. Keep the soil moist but well-drained to avoid root rot. They may suffer if overwatered or if the temperature is too cold. Regular deadheading encourages more blooms.
Propagation
- Propagation methods
- Seeds, Cuttings
- Care difficulty
- Medium
Ornamental features
- Flowering
- Yes
- Flowering period
- summer
Showy, rose-like flowers with ruffled petals; attractive green foliage; upright form.
Toxicity & Safety
- Toxic to humans
- Non-toxic
- Toxic to pets
- Non-toxic
- Weed potential
- Not considered a weed
Lisianthus is non-toxic to humans and pets, making it safe to have around children and animals.
Allergy information
- Allergy risk
- Low
- Allergy triggers
- Pollen, Skin contact
- Pollen level
- Moderate
Eustoma grandiflorum, also known as lisianthus, can cause mild allergic reactions in some people, mainly due to its pollen. Those sensitive to flower pollen might experience sneezing or itchy eyes. To reduce exposure, keep the flowers in well-ventilated areas and avoid direct contact if you have sensitive skin.
Common problems
Overwatering can cause root rot, while too little light may reduce flowering. Pests like aphids and thrips can occasionally appear. Wilted or yellow leaves may indicate watering or temperature issues.
Uses
Primarily grown as an ornamental plant for gardens and floral arrangements due to its attractive and long-lasting flowers.
Notes
Prune spent flowers to encourage new blooms. Repot young plants annually if grown indoors. Protect from frost and cold drafts.