Siberian Sow Thistle (Osot Sibirsky)
Sonchus arvensis subsp. uliginosus
About Siberian Sow Thistle (Osot Sibirsky)
Siberian Sow Thistle (Osot Sibirsky) (Sonchus arvensis subsp. uliginosus) is a herb used in the Russian & Siberian Folk Medicine tradition to help with Liver Support, Detox, Digestive Issues, and Skin Health. The aerial parts and leaves are the parts traditionally used, used both internally and topically.
Parts used
Conditions addressed
Tea / Infusion
- Steep 1–2 tsp of dried Siberian Sow Thistle (Osot Sibirsky) in freshly boiled water for 5–10 minutes.
- Cover while steeping.
- Strain and drink.
Tincture
- Pack dried Siberian Sow Thistle (Osot Sibirsky) into a jar and cover with 40–60% alcohol.
- Seal and steep for 4–6 weeks, shaking daily.
- Strain and store in a dark dropper bottle.
Powder / Capsule
- Grind dried Siberian Sow Thistle (Osot Sibirsky) into a fine powder.
- Fill size 00 capsules or stir into smoothies or honey.
Topical / Poultice
- Mash fresh Siberian Sow Thistle (Osot Sibirsky) or mix the powder with a little water to form a paste.
- Apply to the affected area for 20–30 minutes.
Infused Oil
- Fill a jar with dried Siberian Sow Thistle (Osot Sibirsky).
- Pour over a carrier oil until submerged.
- Leave for 4–6 weeks, then strain.
- Use topically or as a salve base.
Herbal Bath
- Brew 4–6 tbsp of Siberian Sow Thistle (Osot Sibirsky) in 1 litre of hot water for 15 minutes, strain, and add to a warm bath.
- Soak for 20–30 minutes.
Contraindications
- Pregnancy & breastfeeding — insufficient safety data; consult your doctor
- Children under 12 — therapeutic dosage not established
- Active liver disease — monitor liver enzymes with long-term use
Warnings
⚠️ Pregnancy & Breastfeeding
Safety during pregnancy and breastfeeding has not been established for most herbal remedies. Consult your midwife or doctor before use.
⚠️ Liver Health
Some herbs used for liver conditions can be hepatotoxic at high doses. Have liver function monitored if using long-term.
⚠️ Allergic Reactions
Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.
⚠️ Not Medical Advice
This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.
Drug & herb interactions
Processed by the liver
Watch for: Any medication that is also processed by liver enzymes (ask your pharmacist — this includes many common prescriptions)
Can alter how quickly the body clears certain medications, raising or lowering their effective dose.
May have a diuretic effect
Watch for: Diuretic medications and lithium
Additive fluid loss can affect electrolyte balance and change how the body clears lithium.
Where to find in nature
Native region
Russia, Siberia, Central Asia
Climate
Continental subarctic to boreal
Habitat
Boreal forest (taiga), alpine meadows, and river valleys of Siberia and the Russian Far East
🌿 To see Siberian Sow Thistle (Osot Sibirsky) growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier — never consume a plant you are not 100% certain of.
Where to buy
In store
- Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
- Naturopathic clinics and integrative medicine practices
- Specialist herbal apothecaries and herbalist practices
- Farmers markets with herb vendors
Online
iHerb
Wide selection of standardised extracts, capsules, and powders with lab testing
Mountain Rose Herbs
Premium bulk dried herbs — certified organic, ethically sourced
Starwest Botanicals
Large selection of certified organic bulk herbs and powders
Herb Pharm
High-quality liquid extracts and tinctures, rigorous quality standards
Amazon
Convenient — verify brand certifications and check third-party testing
Etsy
Small-batch artisan herbalists, hand-harvested and wildcrafted herbs
Quality tips
When buying Siberian Sow Thistle (Osot Sibirsky), look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products — quality varies enormously.