Prickly lettuce (Lactuca serriola) is a common, often weedy annual or biennial plant. It is a wild ancestor of cultivated lettuce varieties.
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Sunlight
Full sun
Watering
Moderate
Soil
Well-drained
Temperature
Cool to moderate
Fertilizer
Low
Full sun
Prefers at least 6-8 hours of direct sunlight daily.
Moderate
Keep soil consistently moist but not waterlogged.
Well-drained
Cool to moderate
Thrives in temperatures between 15-20°C; bolts in heat.
Low
Requires minimal fertilization; a balanced feed is sufficient.
Plant Type
Herb
Plant Category
Vegetable
Plant Place Type
Garden
Lifespan
Annual
Plant Height
0.1 - 1.8 m
Spread
0.1 - 0.4 m
Growth Rate
Fast
Dormancy
None
Leaf Color
Green
Leaf Type
Lobed
Flower Size
Small
Optimal Sunlight Lux
90000
Weed Status
Yes
Toxic for humans
No
Rating: 0/5
Toxic for pets
No
Rating: 0/5
Edible
Yes
The milky sap (latex) contains lactucarium, which can be bitter and has mild sedative effects. While young leaves are edible, consuming large quantities of mature plants may cause mild digestive upset.
