Sow Thistle

Biological Name:

Sonchus spp. (Sow-Thistle)

Natural Habitat:

Sow-Thistle: This plant is native to North America and can be found in a variety of habitats, including fields, roadsides, and waste areas.

Description:

Sow-Thistle also known as Sonchus is a plant that is native to grassland and prairie regions of North America. It is an annual herb that can grow up to six feet tall and it has small oval-shaped leaves and small yellow or white flowers that bloom in the summer. The plant is known for its sharp spiny leaves and it is often found in disturbed or degraded habitats.

Frequently Asked Questions (FAQs)

Q: What is sow thistle good for?
A: Common sow thistle is in the Compositae (Asteraceae) family. This is a nutritious plant that contains several minerals (calcium, magnesium, iron, phosphorus, sodium, potassium and zinc) and vitamins ( A, B1, B2, B3, B6, & C). The leaves are also great to use as an antioxidant.
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Q: Is sow thistle good for wildlife?
A: There are two thistles to trouble gardeners and farmers: the purple-flowered, spiny-leaved Creeping Thistle, and the yellow-flowered Sow Thistle. Both have strong root systems, and set seed surprisingly quickly. But both have an important role in supporting wildlife.
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Q: How do you make sow thistle tea?
A: Use these tips to brew the perfect cup of milk thistle tea.Bring water to a boil and add milk thistle seeds, leaves, or tea bag.Steep the milk thistle tea for 20 minutes.Strain using a fine mesh strainer and add flavorings such as milk or honey. Enjoy!Your Guide to Milk Thistle Teasenchateabar.com › blogs › blog › milk-thistle-teasenchateabar.com › blogs › blog › milk-thistle-tea
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Q: Is thistle good for the soil?
A: Thistle (Cirsium arvense) The thistle family is high in potassium and can therefore benefit the soil when tilled back in or added to the compost pile. You’ll also likely find ladybugs hiding in the leaves.
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Q: Is sow thistle invasive?
A: Perennial sowthistle (including both subspecies Sonchus arvensis ssp. arvensis and ssp. uliginosus) is an invasive plant that is problematic throughout North America.
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Q: Should I let a thistle grow in my garden?
A: Thistle do nicely! Far from being just a prickly nuisance, thistles can be a spectacular asset to your garden, says Monty Don – and some are edible too. Thistles tend to be branded as spiky weeds thanks to their ability to reproduce themselves voraciously if allowed to seed.
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Q: How do you control a sow-thistle?
A: General Control Pre-plant glyphosate applications in the spring can also be effective at providing in-season control, provided that the majority of perennial sow-thistle has emerged at the time of application. In general a glyphosate rate of 2 L/ac should provide good control of perennial sow-thistle.
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Q: Will grass choke out thistle?
A: As the grass grows, their root systems will compete with the thistles and make it harder for them to grow. Eventually, they’ll help choke out new weed growth.
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Q: Why is the creeping thistle a problem?
A: The loss of native plants tends to disrupt animal habitats and limits food sources for grazing wildlife. Creeping thistle also produces chemicals that alter the pH levels in the soil, giving native species even more trouble. It can spread via seeds or can regrow from buried parts of the root.
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Q: Can humans eat sow thistle?
A: SOWTHISTLE AS FOOD The best part of the plant is the young leaves, raw or cooked. They can be added to salads, cooked like spinach or used in soups etc. You can also use the stems, cooked like asparagus or rhubarb. The milky sap has been used as a chewing gum by the Maoris of New Zealand.
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Q: Are sow thistles good for wildlife?
A: Daisies, dandelions and thistles Plants in this family have many small flowers that are gathered into a flowerhead which then looks like a single flower. It contains many plants that are exceptionally good for wildlife, either attracting insects for nectar or birds and small mammals for seeds.
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Q: Why is thistle a problem?
A: They have become major problems in agricultural landscapes and 22 states have designated them as noxious weeds. Thistles do attract pollinators and birds, but the spiny leaves and stems keep grazers away. Some thistles release chemicals into the soil that inhibit the growth of other plants.
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Q: Are thistles good for anything?
A: Like many plants in the thistle clade of the botanical family Asteraceae, bull thistles provide ample pollen and nectar resources for butterflies, honeybees, hummingbirds, and beneficial insects like green lacewings. Birds like goldfinches and juncos love their seeds, as do white-tailed deer and rabbits.
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Q: What do sow thistle taste like?
A: Sow thistle (Sonchus oleraceus) is one of my family’s favorite weeds to eat. The flavor varies somewhat between raw broccoli and raw radish – although I’ve heard some people describe it as tasting more like spinach. It makes an excellent addition to salads – or you can saute it like dandelion leaves or other greens.
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Q: Why is it called a sow thistle?
A: There are a few different types of Sow Thistle species growing in the UK but Sonchus oleraceus is the most common. It got the name Sow Thistle from the fact that when cut the plant exudes a latex like milk which was believed to help lactation in mothering sows.
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Q: How do you eat common sow thistle?
A: My favorite way to eat sow thistle is to pick and steam the young plants before they’ve produced any flower buds. The steamed stalk/leaves go great with steamed carrots. Another great treat is pickled sow thistle buds. Simply pick flower buds before they have ever opened and drop them in leftover pickle juice.
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Q: Is sow thistle poisonous?
A: Common grounsel does not have bristles or spines and is relatively smooth to the touch. ; sowthistle can also become poisonous by accumulating nitrates. Sowthistle has hollow stems, milky sap, and leaf bases that seem to clasp the stem; it is much more robust, often over 24 inches tall.
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Q: Can birds eat sow thistle?
A: Sow thistle, also known as milk thistle has bright green, very tender leaves when it is young. Birds enjoy eating any part of the milk thistle including the leaves, stems and roots.
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Q: What happens if you touch thistles?
A: Both the stems and the leaves of stinging nettles are covered by structures that look like hairs but are delicate and hollow. These “hairs” act like needles when they come into contact with the skin. Chemicals flow through them into the skin, which causes a stinging sensation and a rash.
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Q: What happens if a horse eats thistle?
A: Ingestion of these plants causes irreversible neurological damage to the horse, and if left untreated, they will usually die from starvation, inhalation pneumonia, or dehydration. Yellow star thistle causes the same clinical signs as Russian knapweed (Centaurea repens), but is considered more toxic.
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Q: Is sow thistle same as dandelion?
A: Many people tend to confuse sow thistle with dandelions. Sow thistle usually has many flowers sprouting out on each stalk. Dandelion only has one flower per stalk. Sow thistle leaves grow all the way up the stalk, as well as at the base of the plant.
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Q: Is wild lettuce same as sow thistle?
A: In addition to dandelion (Taraxacum officinale), wild lettuce (Lactuca canadensis) and prickly lettuce (Lactuca scariola) are similar to sow thistle. Though wild lettuce is native, it is a common, weedy biennial and all of these other plants are weeds that should be controlled.
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Q: How does sow thistle spread?
A: Dispersal: Common sowthistle reproduces and is spread by seed that is mainly dispersed by wind. Surface seed is short-lived but buried seed will survive for two to three years. Few seeds will germinate if buried more than 2 cm deep.
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Q: Is sow thistle the same as milk thistle?
A: Common sowthistle (Sonchus oleraceus), also known as milk thistle, is widespread across the grain-growing regions of Queensland and northern New South Wales. Sowthistle uses stored soil water during fallows and interferes with crop harvest, adding green matter to harvested grain.
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Q: Who should not use milk thistle?
A: Milk thistle should not be used by pregnant or breastfeeding women. People with a history of hormone-related cancers, including breast, uterine, and prostate cancer, should not take milk thistle. DO NOT take milk thistle if you are allergic to ragweed, chrysanthemums, marigolds, chamomile, yarrow, or daisies.
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Q: Is thistle good for your liver?
A: There’s conflicting research on the benefits of milk thistle for liver health. It may have protective effects on the liver, preventing damage. There’s some evidence that milk thistle can treat cirrhosis and chronic hepatitis, which can be caused by alcohol abuse, autoimmune disease, or viruses.
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About the author

Samuel is a gardening professional and enthusiast who has spent over 20 years advising homeowners and farm owners on weed identification, prevention and removal. He has an undergraduate degree in plant and soil science from Michigan State University.