# Common Sow-thistle (*Sonchus oleraceus*) Common Sow-thistle is a leafy plant that grows in gardens and fields. Its bright yellow flowers bloom in the summer, making it a cheerful sight in nature! - **Category:** [Plants](https://www.snappit.app/explore/categories/plant) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 2 - **Habitat:** Urban areas ![Common Sow-thistle](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/S%C3%B3nchus_oleraceus.jpg&width=800) Photo: T.Voekler, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:S%C3%B3nchus_oleraceus.jpg) ## Appearance The Common Sow-thistle has bright yellow, dandelion-like flowers clustered at the top of its stem. Its distinct, irregularly lobed, blue-green leaves clasp the hollow stem, often appearing slightly prickly. Milky white sap oozes when the stem is broken. ## Taxonomy - **Kingdom:** Plantae - **Phylum:** Tracheophyta - **Class:** Magnoliopsida - **Order:** Asterales - **Family:** Asteraceae - **Genus:** Sonchus ## Interesting facts - Ancient Romans believed eating its leaves helped with digestion! - It grows on every continent except icy Antarctica – truly global! - Many garden caterpillars love to munch on its fresh, tender leaves. - This resilient plant can sprout and thrive even in sidewalk cracks! ## Special abilities - **Healing Sap:** Common Sow-thistle has milky white sap that acts as a natural defense against hungry insects and helps seal plant wounds. - **Wind Rider Seeds:** Common Sow-thistle produces light, feathery seeds that catch the wind, allowing them to travel far and wide to grow. - **Rapid Regenerator:** Common Sow-thistle can quickly grow new shoots and flowers, allowing it to recover fast from damage and spreading. ## Measurements & details - **Height:** 30-150 cm - **Spread:** 15-45 cm - **Flower Size:** 1-2.5 cm - **Bloom Season:** April to October - **Edible:** Yes - **Toxicity:** None - **Lifecycle:** Annual - **Pollination Method:** Insect ## Ecological connections - **Pollinates:** Honey bee (*Apis mellifera*) — Visits flowers for nectar and pollen. - **Eaten by:** [European rabbit](https://www.snappit.app/explore/european-rabbit) (*Oryctolagus cuniculus*) — Rabbits frequently browse on its leaves. - **Eaten by:** [Garden snail](https://www.snappit.app/explore/garden-snail) (*Helix aspersa*) — Snails often feed on its leaves and stems. - **Eats:** Humans (*Homo sapiens*) — Young leaves are used in salads and cooking. ## Traits - [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle. - [Summer Blooming](https://www.snappit.app/explore/traits/summer-blooming): Summer blooming plants produce their flowers during the summer season, often providing vibrant color when many other plants have finished. - [Medicinal](https://www.snappit.app/explore/traits/medicinal): Medicinal plants possess chemical compounds that can be used for therapeutic purposes to treat illnesses or maintain health. - [Edible](https://www.snappit.app/explore/traits/edible): Edible plants are those parts of a plant that are considered safe for human consumption. - [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms. - [Rapid Growing](https://www.snappit.app/explore/traits/rapid-growing): Rapid growing plants exhibit accelerated growth rates, quickly increasing in size and biomass within a short period. - [Urban Friendly](https://www.snappit.app/explore/traits/urban-friendly): This habitat trait indicates species that can coexist with humans in urban and suburban environments, utilizing man-made structures and green spaces. ## Collections - [Plants](https://www.snappit.app/explore/collections/plants) ## Safety **Danger:** 1/5 · Very low Always check with an adult before touching or tasting any plants. ## Frequently Asked Questions ### How to identify Common Sow-thistle? Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details. ### How tall is Common Sow-thistle? 30-150 cm ### How wide does Common Sow-thistle spread? 15-45 cm ### How big are the flowers on Common Sow-thistle? 1-2.5 cm ### When does Common Sow-thistle bloom? April to October ### Is Common Sow-thistle edible? Yes ### Is Common Sow-thistle toxic? None ### What is Common Sow-thistle's lifecycle? Annual ## Where to spot - [Bolsa Chica Ecological Reserve](https://www.snappit.app/guides/places/bolsa-chica-ecological-reserve) — California, US · Nature Reserve - [Cottonwood Historic District](https://www.snappit.app/guides/places/cottonwood-historic-district) — California, US · Historic District - [Van Nuys-Sherman Oaks War Memorial Park](https://www.snappit.app/guides/places/van-nuys-sherman-oaks-war-memorial-park) — California, US · Park [View all places to see Common Sow-thistle](https://www.snappit.app/guides/where-to-see/common-sow-thistle) ## More Plants - [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*) - [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*) - [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*) - [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*) --- Source: [Common Sow-thistle: Facts & Places to See — Snappit](https://www.snappit.app/explore/common-sow-thistle)