• Dr. Nate Petley - Harvesting Medicinal Plants

    5 Useful Wild Weeds From Your Backyard

    I wandered the backyard this morning before work to see what was popping up in my central Maine gardens. With these past few rainy days of spring, plants are slowly pushing through the soil. Truth be told, I was really just hoping the dandelions were up enough for a little snack. I was in luck! I was able to forage enough leaves for a quick sauté with garlic and have enough for a fresh tea later in the day.

    I love this time of year! This first taste of wild greens effectively shook off the last clutches of winter. Spring, for me, has officially arrived. I will be foraging the backyard from now until after snowfall, collecting for food and herbal medicine. The following herbs, in no particular order, are just a few I encourage to grow where they like. 

    1. Dandelions (Taraxacum officinale, Asteraceae):

    Dandelion LeavesWhy struggle and fight with the dandelions? As the saying goes, “If you can’t beat ‘em, join ‘em!”  I say, “If you can’t beat ‘em, eat ‘em!” Dandelions are one of the first flowers in spring that provide food for bees and other insects. This in turn keeps them around later when our vegetable gardens are in bloom with peas, beans, tomatoes, and squash. It just so happens that these dandelions are also one of our sources of wild food!

    The entire dandelion plant is edible – leaves, roots, flowers, and buds.  The leaves can be harvested as soon as they start growing and added fresh to salads, sautéed, or when they get larger cooked as a potherb, much like one cooks spinach. The leaves are most tender (and less bitter) before flowering and easy to collect by snipping off individual leaves at the base, thereby preserving the root and crown to produce more leaves and flower buds. They are also easier to clean this way. The leaves are a powerful source of fiber, vitamins (including A and C), and minerals (including calcium and potassium). Medicinally, the bitterness of the leaves stimulates the appetite and supports the entire digestive system. They have a special affinity to the kidneys and act as a useful diuretic; they are so potassium-rich that they replenish faster than depleting potassium, unlike most diuretics.

    The roots are useful as a liver tonic and digestive aid. They can be harvested late fall after the first killing frost or early spring before much leaf growth has developed. I either decoct them into tea (download a free quick guide here) or roast them and use all winter as a flavorful and rich roasted dandelion root beverage. It can be used as a, dare I say, coffee substitute. (Click here to learn how to harvest the root and make the brew!)

    The flower buds can be made into delicious wild capers (click here to learn how). Be sure to allow some of the buds to develop into flowers for the insects. The flowers can be dipped in batter and deep-fried or fermented into a tasty wine.

    1. Yarrow (Achillea millefolium, Asteraceae)

    Yarrow is an excellent addition to the flower garden or along the lawn edge. They can grow one to two feet tall and have beautiful white flowers. I look for the small highly dissected leaves in my lawn and transplant them into my garden in large masses. Each year I harvest the flowers (snipping just blow where the flowers join the stem). Of course, I leave plenty for the bees and butterflies and for self-seeding. Medicinally, it has a long history of use as a diaphoretic (causing the body to raise its own thermostat triggering the body to sweat) and antimicrobial, making it shine when used for the cold and flu. Historically, it has been added to formulas for hemorrhoids. Because the herb is quite bitter, I prefer making a tincture from either fresh or dried flowers. It can also be used topically as a poultice for its styptic and anti-inflammatory properties. Poultices are made by chewing on the leaves or flowers (or macerate in a mortar and pestle) until it is a pulpy, watery mush, and in this case,applied to minor scratches to stop bleeding. When hiking, I always ask my friends in need if they’d like to chew and spit the yarrow on their bleeding scrapes, or shall I. They never seem to mind or complain about that bitterness!

    1. Common Plantain (Plantago major, Plantaginaceae)

    Plantain is a non-native, well-established wild plant, appropriated dubbed “white man’s footprints” due to the fact that it was introduced when the early settlers arrived from Europe and it grew wherever they walked. It is a plant that grows best in disturbed soil (look for them in lawns and gravel driveways). This is an herb with endless uses as a poultice. It is soothing and cooling to bug bites, sunburns, poison ivy, and minor scrapes and scratches.  Simply chew on a fresh leaf (or macerate in a mortar and pestle) until it is a pulpy, watery mush. Then simply smear some on the afflicted skin. The leaves can also be made into a tea and sipped on for quick heartburn relief or used as a mouthwash for sore gums and cankers.  The seeds can be chewed as a source of healthy oils and fiber – this is our version of Plantago ovata, the source of commercially-grown psyllium seed.

     

    1. Red Clover (Trifolium pratense, Fabaceae)

    Clover is commonly found in lawns and gardens – just look for the signature three (and if you’re lucky four) leaves.  It is commonly used as a cover crop in fields to help suppress other weeds and then easily turned with a spade or tilled. Clover, being a member of the legume family, is beneficial to the soil and surrounding plants as they are nitrogen-fixers. The roots contain nodes that work with symbiotic bacteria in order to capture nitrogen in the air and make it readily available to the plant.

    Clover blossoms are attractive to many insects including butterflies and wild bees. Harvest after the morning dew has dried and either use fresh or quickly dry for use as a winter tea (be sure that the blossoms do not brown in the drying process). They are also make fun additions to salads for a little color and touch of sweetness. I love adding whole blossoms to my sun teas. The leaves are rich in minerals and make a tasty tea. Medicinally, the flowers are used as a liver and blood cleanser and for skin conditions such as eczema. They are also rich in phytoestrogens making them a common herb to add to formulas addressing the menstrual cycle and menopause.

    1. Goldenrod (Solidago spp., Asteraceae)

    While often considered the source of all fall allergies, this showy late summer/fall flower is unfairly blamed while the inconspicuous common ragweed (Ambrosia artemisiifolia) goes unnoticed. Both are in the same Asteraceae family, but in different tribes (Astereae vs Heliantheae) which is why they look very different from each other. More importantly, the pollen of goldenrod is sticky so that it is readily carried to other flowers by way of bees and other pollinators, not by air. The pollen of ragweed, however, is designed to be airborne and is not spread by bees; the plant produces an abundance of pollen that can be carried for miles in the wind. The goldenrod is an excellent plant to allow growing at the edge of the lawn and in the garden partly for its simple beauty but also because it is one of the last sources of food for bees. Medicinally, the flowers can be made into a tea or tincture and used for mild kidney and lung complaints due to its diuretic, anti-inflammatory, and antiseptic properties. Unlike popular belief, goldenrod can actually be used for allergy season.

    Dr. Nate Petley is a naturopathic doctor and clinical herbalist.  He offers a three-year herb apprenticeship in Maine and lectures throughout New England sharing his expertise in naturopathic and botanical medicine. Dr. Petley blends the art and science of herbalism in his clinic and classroom, relying on his 20 years of experience studying, wildcrafting, and making herbal medicine. Information provided is for educational purposes only. It is not intended to diagnose, treat, cure or prevent any disease, nor is it a replacement for seeking proper medical attention.

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    Dr. Nate Petley  |  www.drpetley.com  |  2019. All rights reserved.  All text and photos are the property of Nathaniel Petley, ND.

  • Dr. Nate Petley - Harvesting Medicinal Plants - Herbal Preparations

    Dandelion Capers

    Dandelion Capers

    Nothing is more satisfying than foraging food from the backyard.  This spring I have been eating dandelion greens at least twice a day, sauteed in olive oil and garlic.  They are high in trace minerals, calcium, and iron, and vitamins A, C, and B6 – a very nutritious early spring addition to any meal.  Best of all, they are free!  Be sure to only collect from clean lawns and gardens that have not been sprayed with herbicides and pesticides.   

    Dandelion Flower Buds ~ Dr. Nate Petley
    Dandelion Flower Buds ~ Dr. Nate Petley

    Sure, us weed-eating folks do get quizzical looks when munching on things in the lawn.  While we won’t likely convince everyone to chow down on bitter dandelion greens, we might be able to prove their worth with this simple recipe utilizing the flower buds.  Next time you reach for capers in a recipe, try dandelion capers instead!  They add pizazz to salads and pasta dishes, and they are extremely easy to make.

    Dandelion Flower Buds ~ Dr. Nate Petley
    Dandelion Flower Buds ~ Dr. Nate Petley

    Before the dandelion flowers open in spring, collect a handful or so of small buds (they should be bright green and almost spherical).  I pick a few of the buds from lots of different plants around the garden because dandelions are one of the earliest available flowers for bees and nectar-loving insects.  Please don’t mow, don’t spray, and don’t dig.

    Making Dandelion Capers ~ Dr. Nate Petley
    Making Dandelion Capers ~ Dr. Nate Petley

    Once you have collected a few, place them in a small jar and cover with vinegar (I use raw apple cider vinegar because after I eat the capers I use the leftover vinegar on salads).  Some online recipes suggest using dilute vinegar, but I use it straight up because dandelions are full of water which naturally dilutes the vinegar a little.  Add salt as desired – capers are traditionally salty so don’t be shy with the salt.  Cover and shake gently until the salt dissolves.  Let set about a week before tasting them; adjust the salt as needed.  They will last for several months in the refrigerator, except that I eat mine long before they ever get a chance to spoil.

    Making Dandelion Capers ~ Dr. Nate Petley
    Making Dandelion Capers ~ Dr. Nate Petley

    Try some tasty variations on this simple recipe.  Add garlic, peppercorns, coriander seeds, dill, oregano, rosemary – you get the picture.  Also try different types of vinegar, like red wine, white balsamic, or homemade.

    Back to the dandelion greens… As soon as the snow melts and the dandelion leaves start to grow, pluck individual leaves from all around.  This is my preferred method of harvesting.  Growing up, we would take a knife and cut the entire rosette of greens.  Over the years I have learned that this only ensures a sink full of soil, leaf litter, and burrowing insects.  Now, I just pluck leaves for a cleaner harvest requiring only a few quick rinses before eating. 

    Dandelions: nutritious, delicious, and wild!  Happy harvesting!

     

    Dr. Petley
    Dr. Nate Petley, Naturopathic Doctor & Clinical Herbalist

    Dr. Nate Petley is a naturopathic doctor and clinical herbalist.  He offers a three-year herb apprenticeship in Maine and lectures throughout New England sharing his expertise in naturopathic and botanical medicine. Dr. Petley blends the art and science of herbalism in his clinic and classroom, relying on his 20 years of experience studying, wildcrafting, and making herbal medicine.

    Dr. Nate Petley  |  www.drpetley.com  |  2017. All rights reserved.  All text and photos are the property of Nathaniel Petley, ND.

  • Dr. Nate Petley - Herbal Preparations - Plant Wisdom

    The Medicinal Kitchen Cupboard

    Herbalism is something that begins at home.  It is the knowledge of treating ourselves with the healing power of herbs.  These herbs can be from far off exotic lands or those growing locally.  Here in Maine, the backyard is currently covered with a thick white blanket that has tucked the herbs in for a long winter’s rest.  This is the way of the land. 

    For Maine herbalists, however, this doesn’t end our ability to practice herbal medicine.  Even if we run out of all the preserved herbs from the warmer days of summer, we still have ample sources of highly medicinal herbs throughout the cold months of winter.  Herbalists know just where to look for the secret stash to sustain those in need and the journey takes us no further than the kitchen cupboard.  No matter where the herbalist is, there is always beneficial medicine found in the kitchen.    

    Kitchen herbs and spices are too often referred to as nothing more than culinary ingredients.  However, herbalists know there is a world of usage beyond the flavors these herbs provide.  The herbs and spices most notably stored in the spice cabinet are full of volatile oils that readily release their scent when crushed, steeped, or cooked.  These oils are not just aromatic, though, they are also medicinal.   Herbalists over the eons have learned how to harness these aromatic herbs to treat common complaints like an upset stomach, sore throat or common cold.   The same oregano that you used for dinner last night and the cinnamon you added to your breakfast this morning hold potent medicinal properties, when used correctly and appropriately. 

    Herbalism is the knowledge of how to, how much to, when to, and when not to use these herbs medicinally.  This knowledge is typically taught in herb apprenticeships where students receive not only academic knowledge but hands-on guidance.    

    Here is a short list of herbs that you likely know and might already have available in your kitchen cupboard.  The information provided is to introduce the wonders of the spice cabinet, not treat or diagnose any condition without the guidance of a practitioner trained in herbal medicine. 

    Ginger: This is a common rhizome that is easy to find fresh or dried.  Both work great but I mostly reach for fresh ginger. Here’s a tip to keep your fresh ginger around longer – store it in the freezer and when needed, simply grate or chop with a sharp knife.  Ginger is considered warming and anti-inflammatory making it a useful remedy for the winter chills or the common cold.  The use of ginger has been proven as an anti-nausea remedy and can be sipped as needed throughout the day for an upset stomach.  To make a tea, place one tablespoon of freshly chopped ginger in eight ounces of water.  Simmer on the stove for ten minutes.  Strain as you pour it into your favorite mug, unless you like to nibble on the potent ginger pieces as you drink.

    Fennel, Coriander, and Cumin:  Herbalists classify these spices as carminatives, meaning they help relieve abdominal gas and bloating.  They have a long history of use as an after-dinner remedy either singly or in combination.  My favorite recipe is simple: combine one teaspoon each of the whole seeds of fennel, coriander, and cumin in a small jar.  I like to chew a quarter teaspoon of the blend whenever I overeat and repeat as needed up to four times.  For those who don’t like the idea of seeds getting stuck in their teeth, the same mixture can be made into a tea and sipped after dinner.  To make, place one teaspoon of the blend in eight ounces of just boiled water and steep covered ten minutes.  Strain and enjoy.     

    Sage, Oregano, Thyme: These herbs contain volatile oils that are effective against many viruses and bacteria.  A strong tea of any of these herbs or in combination can be used as gargle for a sore throat.  To make, place one tablespoon of the chosen herb or a teaspoon of each of these in eight ounces of freshly boiled water and steep covered until cool to the touch.  Strain and gargle with a small sip of the tea throughout the day.  Avoid using powdered herbs for this tea because they are difficult to strain well and could feel like swallowing sandpaper.  Some herbalists will dissolve a teaspoon of salt into the strained but still warm tea to further improve the properties of the gargle.  The volatile oils that are carried through the steam of the tea can help with a stuffy nose.  To try this, make the same tea as above (no salt) but instead of covering it while steeping, either breathe in the steam as it rises or create a tent using a cloth towel placed over your head and the shallow pot of the tea.  Breathe in slowly through the nose.

    Keep in mind that when using herbs medicinally they must be of high quality. This means that if your sage was purchased at the turn of the century, it is no longer considered medicinal.  They should be stored in glass jars away from heat, light, and humidity.  These are all factors that cause the aromatic oils to evaporate faster and mar the potential of the herbs.  For optimum flavor and medicinal value, store the seeds and leaves in their whole form and only grind them when needed in a recipe (except for cinnamon, of course, which does not powder easily).  Another reason to store whole herbs and spices is because the powdered form is difficult to strain when making tea.  Using herbs medicinally sometimes means consuming larger doses than a pinch or two at a time, so buy organic when available. 

    Above all, never underestimate the simple or the mundane.

    Dr. Nate Petley is a naturopathic doctor and clinical herbalist.  He offers a three-year herb apprenticeship in Maine and lectures throughout New England sharing his expertise in naturopathic and botanical medicine. Dr. Petley blends the art and science of herbalism in his clinic and classroom, relying on his 20 years of experience studying, wildcrafting, and making herbal medicine.

    Dr. Nate Petley  |  www.drpetley.com  |  2017. All rights reserved.  All text and photos are the property of Nathaniel Petley, ND.