When it comes to greenery that pops up in one's garden, I, like a lot of herbalists, don't like the slur 'weed'. That unassuming, often overlooked plant, with its tendency to cling to everything it touches, is commonly known as Cleavers, and it holds a fascinating history and a surprising number of medicinal applications. Often dismissed, this tenacious herb, scientifically named Galium aparine, has been valued for centuries across various cultures for its therapeutic properties.
A Sticky History: More Than Just a Clingy Plant
Cleavers, also recognized by an array of descriptive nicknames like "sticky willy," "goosegrass," "catchweed," and "bedstraw," has a rich history intertwined with human daily life and traditional medicine. Its name aparine is derived from the Greek word 'apairo,' meaning 'to seize,' a clear nod to its clinging nature due to the tiny hooked hairs covering its stems and leaves.
Historically, its uses were remarkably diverse. Ancient Greek shepherds, including Dioscorides, reportedly used the matted stems of cleavers as a rough sieve to strain milk, a practice also noted by Linnaeus in Sweden and apparently still in use in some areas. Beyond the dairy, the dried and matted foliage was used to stuff mattresses, as the clinging hairs helped the filling maintain a uniform thickness – hence the name "bedstraw." The roasted and dried seeds have also served as a coffee substitute, albeit with less caffeine. Furthermore, its roots can produce a permanent red dye.
In traditional folk medicine, Cleavers was highly regarded. Herbalists of old extolled its virtues as a "blood purifier" and a key ingredient in spring tonics designed to cleanse the body after winter. It was commonly used to treat a variety of skin ailments, light wounds, and burns through poultices and washes. As a pulp, it was applied to relieve venomous bites and stings.
Nature's Pharmacy: Medicines from Cleavers
Cleavers is celebrated in contemporary herbalism primarily for its profound effects on the lymphatic system and its diuretic properties. It's considered an excellent alterative (blood cleanser), anti-inflammatory, astringent, and tonic herb. Here are some of the key medicinal applications and the preparations used:
Lymphatic Support: Cleavers is perhaps most famous for its action as a lymphatic tonic and cleanser. The lymphatic system is crucial for removing waste products from the blood and maintaining a healthy immune system. Cleavers is thought to stimulate lymphatic drainage, helping to reduce congestion, swelling (edema), and swollen glands. This makes it a go-to herb for spring detoxification routines.
Preparation: Fresh juice, cold infusions (teas), or tinctures.
Diuretic and Urinary Tract Health: As a diuretic, Cleavers helps to increase urine flow, which can aid in flushing out toxins and relieving conditions like urinary tract infections (UTIs), cystitis, and issues related to water retention. Its cooling nature can also soothe inflammation in the urinary tract.
Preparation: Teas (hot or cold infusions) and fresh juice.
Skin Conditions: Traditionally and currently, Cleavers is used both internally and externally for various skin complaints. Its cleansing action is believed to benefit chronic skin conditions such as eczema, psoriasis, and acne. Topically, it can soothe burns, sunburns, and wounds.
Preparation: Poultices made from the fresh plant, washes or infused oils for topical use. Teas or tinctures for internal support.
Potential Anti-Cancer Properties: Some preliminary research has indicated that Cleavers extract may possess immunomodulatory effects, potentially boosting the production of lymphocytes (a type of white blood cell) and inhibiting the growth of certain cancer cells. However, more rigorous human studies are needed to confirm these effects.
Preparation: Typically studied as extracts; herbalists might use tinctures or potent infusions.
General Tonic and Alterative: Cleavers is considered a cooling herb that helps clear "heat" and stagnation from the body, according to traditional herbal energetics. It's often used as a general spring tonic to support overall detoxification and vitality.
Preparation: Cold infusions, fresh juice, or tinctures.
The Best Ways to Prepare Cleavers
While Cleavers can be dried for later use, many herbalists emphasize that fresh Cleavers is often best, as some of its beneficial properties may be diminished upon drying or heating.
Here are some of the most effective ways to prepare this versatile herb:
Cold Infusion (Cleavers Tea): This is a highly recommended method to extract its virtues, especially its lymphatic benefits, without damaging heat-sensitive compounds.
How to: Take a good handful of fresh, chopped Cleavers (aerial parts – leaves and stems). Place them in a jar and cover with cold water. Let it steep in the refrigerator for at least 2-4 hours, or even overnight. Strain and drink throughout the day. For a quicker tea, you can use hot water, steeping for 10-15 minutes, though the cold infusion is often preferred for its specific properties.
Fresh Juice (Succus): Juicing fresh Cleavers yields a potent medicine.
How to: Blend fresh Cleavers with a small amount of water until pulpy. Strain the mixture through a cheesecloth or fine-mesh sieve, squeezing out as much liquid as possible. The resulting vibrant green juice can be taken in small doses (e.g., 3-15 ml, three times a day, but consult an herbalist for appropriate dosage). The juice can also be frozen in ice cube trays for later use, perhaps added to smoothies.
Tincture: Tincturing Cleavers in alcohol is an excellent way to preserve its medicinal qualities for long-term use.
How to: Fill a jar about three-quarters full with freshly chopped Cleavers. Cover the herb completely with alcohol (vodka or brandy of at least 80 proof or 40% alcohol by volume is common for fresh plant tinctures). Seal the jar and store it in a dark place for 4-6 weeks, shaking it regularly. Strain the liquid, bottle it in a dark glass container, and label it. A typical dosage might be 2-4 ml, three times daily, but again, professional guidance is advised.
Poultice/Topical Application: For skin issues, wounds, or bites, a fresh poultice is effective.
How to: Crush or blend fresh Cleavers to make a pulp. Apply this directly to the affected area. Alternatively, an infused oil can be made by steeping dried Cleavers in a carrier oil like olive or almond oil for several weeks, then straining. This oil can be used on its own or incorporated into salves.
A Note on Foraging and Use: When harvesting Cleavers, ensure you are picking from an area free of pesticides and pollutants. It's best to gather it in the spring when it's young and vibrant, before it flowers and sets seed, as it can become more fibrous and less palatable/potent later in the season. As with any herbal remedy, it's wise to start with small amounts to see how your body responds and consult with a qualified healthcare practitioner or herbalist, especially if you have pre-existing health conditions or are taking other medications. Cleavers is generally considered safe, but some sources advise caution during pregnancy or for those on blood-thinning medications due to potential anticoagulant properties.
So, the next time you encounter this "sticky" plant in your garden or on a walk, remember its rich legacy and the potent medicine it holds. Cleavers is a testament to the healing power that can often be found right under our feet.
Sources:
Herbal Materia Medica and Monographs: These are detailed profiles of medicinal plants. Searching for "Cleavers monograph," "Galium aparine materia medica," or "Cleavers traditional uses" will yield results from herbalist websites, herbal schools, and databases.
Examples based on my knowledge include sites like:
The HerbRally (herbrally.com) often has detailed monographs.
Websites of herbal schools like The Herbal Academy (theherbalacademy.com) frequently publish articles on specific herbs.
Botanical sites like "A Modern Herbal" by Mrs. M. Grieve (botanical.com) provide historical and traditional use information.
The American Botanical Council (herbalgram.org) is another resource for scientifically-backed herbal information, though some content may be behind a paywall.
Plants For A Future (pfaf.org) offers information on edible and medicinal uses of plants.
General Health and Wellness Sites with Herbal Sections: Many reputable health websites now include information on herbal remedies, often summarizing traditional uses and some scientific findings.
Examples based on my knowledge include sites like:
Verywell Health (verywellhealth.com)
Sites that focus on natural or traditional medicine, such as Traditional Medicinals (traditionalmedicinals.com) which often has blog posts about the herbs they use.
Foraging and Wild Edibles Websites: These sites often cover the identification, traditional uses, and preparation methods for wild plants like Cleavers.
Examples based on my knowledge include sites like:
The Old Farmer's Almanac (almanac.com) sometimes features articles on wild herbs.
Various regional foraging blogs and websites (a general search for "foraging Cleavers" would bring these up).
Scientific Databases: For information on phytochemical constituents and studies on medicinal effects (like potential anti-cancer or immunomodulatory properties).
Examples based on my knowledge include sites like:
PubMed Central (ncbi.nlm.nih.gov/pmc/) for research articles.
Google Scholar (scholar.google.com) to search for academic papers.
When I generated the article, I drew upon the collective knowledge available from sources like these, focusing on common themes and widely accepted information regarding Cleavers' history, medicinal uses, and preparation methods.
If you'd like to explore further, I recommend using search terms such as:
"Cleavers (Galium aparine) traditional uses"
"Medicinal benefits of Cleavers"
"How to make Cleavers tea"
"Cleavers tincture recipe"
"Cleavers lymphatic system"
"Historical uses of Galium aparine"
Gabby Moritz, editor of Forks over Applesauce. Gabby is an herbalist, and a vegan chef in her spare time. She is currently a volunteer for Overlord Productions.