Wild Lettuce (Lactuca virosa)

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Ancient Herbal Plant with Milky Latex

Wild Lettuce (Lactuca virosa), also known as Opium Lettuce, is a biennial herb plant belonging to the Asteraceae family, native to parts of Europe, North Africa, and Asia. This distinctive plant can grow to heights of up to 6 feet under optimal conditions and features a central stem that is thick, fibrous, and often tinged with a reddish-purple color.

One of the most notable and sought-after characteristics of Wild Lettuce is its sap. When the stems or leaves are cut or broken, they exude a milky latex that has been historically used for its sedative and analgesic properties. This latex contains compounds such as lactucin and lactucopicrin, which contribute to its medicinal uses. In herbal medicine, extracts from Lactuca virosa have been used to treat various ailments such as insomnia, anxiety, and pain. It is also used in some cultures for its psychoactive effects, though potency and safety can vary widely. The plant has long, green leaves that can appear bluish-green, with toothed or wavy edges and a waxy feel. As it grows, the lower leaves drop off, leaving the top ones more visible. Its small, yellow flowers resemble dandelions and cluster on branching stems, blooming from late spring to early fall. The plant produces small, dry fruits called achenes, featuring a fluffy structure that helps them spread on the wind.

Cultural & Culinary Significance

Wild Lettuce has a long history in herbal medicine, with the plant's milky latex being its most notable traditional feature. When stems or leaves are cut or broken, the latex is released and contains compounds including lactucin and lactucopicrin. Historically, extracts of Lactuca virosa have been used for insomnia, anxiety, and pain, as well as for their traditionally described sedative and analgesic properties. In some cultures, Wild Lettuce has also been used for its psychoactive effects. Potency and safety can vary widely.

Despite its common name, Wild Lettuce is not closely related to the lettuces commonly grown in gardens for consumption, although it shares some visual similarities.

Why Grow Wild Lettuce?

  • Distinctive milky latex Produces a characteristic white latex when the stems or leaves are cut or broken.
  • Long herbal history Valued in traditional herbal practices for its sedative and analgesic properties.
  • Striking mature form Grows up to 6 ft. tall with a thick, fibrous stem that can develop reddish-purple coloring.
  • Unique foliage and flowers Features bluish-green, wavy or toothed leaves and small yellow flowers resembling dandelions.
  • Easy, adaptable growth Thrives in well-drained soil and tolerates full sun to partial shade.

Growing Tips

Wild Lettuce thrives in well-drained soil and grows well in full sun to partial shade. It is naturally found in waste areas, along roadsides, and in fields, making it an adaptable herb under a range of growing conditions. Under optimal conditions, plants can reach up to 6 ft. tall and develop a thick, fibrous central stem often tinged with reddish-purple. The long green or bluish-green leaves have toothed or wavy edges and a waxy feel, while the lower leaves gradually drop off as the plant grows. Small yellow flowers resembling dandelions appear in clusters on branching stems from late spring to early fall. After flowering, the plant produces small, dry achenes with fluffy structures that allow the seeds to spread on the wind.

Attribute Details
Botanical Name Lactuca virosa
Common Names Wild Lettuce, Opium Lettuce
Family Asteraceae
Origin Europe, North Africa, and Asia
Plant Type Biennial Herb
Mature Size Up to 6 ft.
Light Requirements Full Sun, Part Shade
Soil & Moisture Well-drained soil
Stem Thick, fibrous, often tinged reddish-purple
Leaves Long, green to bluish-green; toothed or wavy edges; waxy texture
Leaf Habit Lower leaves drop off as the plant matures
Latex Milky latex released when stems or leaves are cut or broken
Notable Compounds Lactucin and lactucopicrin
Traditional Properties Historically used for sedative and analgesic properties
Traditional Herbal Uses Insomnia, anxiety, and pain
Historical Psychoactive Use Used in some cultures for psychoactive effects
Flowers Small, yellow, dandelion-like flowers
Bloom Time Late Spring to Early Fall
Fruit Small, dry achenes
Seed Dispersal Fluffy structures allow seeds to spread on the wind
Natural Habitat Waste areas, roadsides, and fields
Growth Habit Upright, tall herb
All of our plants ship in plantable coconut coir pots or recyclable nursery pots! Just pop them in the ground or reuse and recycle. Want to learn more about our plant sizes and how to grow them? 👉 Checkout the Full Guide Here

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1 review
  • VS
    Vicki S.
    Verified Buyer
    I recommend this product
    Years Gardening 10+
    Grown This Variety Before? No
    Rated 5 out of 5 stars
    1 year ago
    Wild lettuce

    Plants arrived in beautiful condition. Will need to wait until they're bigger to see how it tastes.

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