Wild Lettuce
Lactuca virosa
Wild Type
About this plant
Lactuca virosa, commonly known as Wild Lettuce, is a tall, leafy plant with a bitter taste. It has milky sap and produces small yellow flowers. Traditionally, it has been used for medicinal purposes. It grows quickly and can reach over a meter tall, often found in wild or uncultivated areas.
Taxonomy
- Genus
- Lactuca
- Family
- Asteraceae
- Higher classification
- Order Asterales
- Plant type
- Herb
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Europe, Asia
- Distribution
- Native to Europe and parts of Asia; now found in North America and other temperate regions as a wild or naturalized plant.
Care
- Light preference
- Full sun
- Suitable locations
- Outdoor, Greenhouse
- Preferred window facing
- South-facing, West-facing
- Watering frequency
- Moderate
- Watering interval
- 3–7 days
- Humidity
- Normal
- Minimum
- -15 °C
- Maximum
- 30 °C
- Optimal
- 15-25 °C
- USDA hardiness zones
- 5-9
- Soil pH
- 6.0-7.5
- Soil type
- well-draining loam
Watering. Water moderately, allowing the soil to dry slightly between watering. Avoid waterlogging to prevent root rot.
Fertilizing. Apply a balanced fertilizer once a month during the growing season to support healthy growth. Avoid over-fertilizing as it can cause excessive leaf growth with less vigor.
Lactuca virosa is a hardy plant that grows quickly and tolerates dry conditions well. It prefers full sun and well-draining soil. Overwatering can cause root problems, so water moderately. It requires minimal maintenance once established.
Propagation
- Propagation methods
- Seeds, Cuttings
- Care difficulty
- Medium
Ornamental features
- Flowering
- Yes
- Flowering period
- summer
Tall upright form with lobed leaves and small yellow flowers; milky sap is notable.
Toxicity & Safety
- Toxic to humans
- Mildly toxic
- Toxic to pets
- Mildly toxic
- Weed potential
- Low spread
The plant's sap can cause mild skin irritation. Keep away from children and pets to avoid accidental ingestion, which may cause mild stomach upset.
Allergy information
- Allergy risk
- Low
- Allergy triggers
- Sap or latex, Skin contact
- Pollen level
- Low
Lactuca virosa may cause mild skin irritation in some people who are sensitive to its sap. Avoid direct contact with the sap to reduce the chance of reaction. It is not a common allergen.
Common problems
Overwatering can lead to root rot. Poor sunlight may cause weak growth. It can be affected by aphids and powdery mildew if not cared for properly.
Uses
Used mainly as a medicinal herb and occasionally as an ornamental plant. Not commonly eaten due to bitter taste.
Notes
Prune to control height and encourage bushier growth. Repot young plants annually if grown indoors. Handle sap with care to avoid skin irritation.