Chestnut Herbal School

Materia Medica

The roots of a freshly harvested ashwagandha plant.
Last updated on October 11th, 2024

The Medicinal Benefits of Ashwagandha

If you experience overwhelm in your life—whether from insomnia, anxiety, or burning the candle at both ends—the medicinal benefits of ashwagandha bring many blessings. Ashwagandha calms and heals your nervous system, refreshes sleep cycles, invigorates immune resilience, and infuses your entire being with strength. This charismatic herb heralds from India, the Middle East, and Northern Africa. Ashwagandha’s medicinal use in the Western world is thanks to the traditional healers of these regions, who cherish its healing root for countless ailments.

Harvesting chickweed with the haircut method.
Last updated on October 11th, 2024

The Medicine That Grows In-Between: Lamb’s Quarters, Plantain, and Red Clover

Your garden wants to feed you—not just with the cultivated plants you tuck into the soil, but with a profusion of wild greens and herbs that spring up of their own generous accord. These feral guests surpass domestic veggies in nutrition and are often brimming with medicine, which makes them worthy of our attention and care in cultivated spaces.

A patch of Spilanthes.
Last updated on March 5th, 2025

The Best Herbs to Support Your Immune System this Cold & Flu Season

Winter is rife with viral booby-traps—there’s a head cold and cough waiting at every gas station pump and pin pad across the land. A strong immune system is adept at navigating pathogenic obstacles, but some scenarios call for a boost, herbal-style. When I know I’ve been exposed to a cold or the flu, I don’t waste a moment in reaching for my tried-and-true immune stimulating herbs.

A handful of turkey tail mushrooms.
Last updated on March 5th, 2025

5 Tonic Herbs to Boost Your Immune System This Winter

The cold months of the year bring a flurry of beastly germs to our doorstep. These wee-but-wicked pathogens must sense that our immune systems are vulnerable—especially during the holidays, when rich food and drink prevail. I like to start bolstering my family’s immune systems early in the cold & flu season; well before everyone around us is sniffling and sneezing. Practices like eating a nourishing diet; getting plenty of sleep, sunshine, and water; and proper hand washing are essential, but I also rely on a handful of tonic herbs to keep us healthy and resilient.

A field of goldenrod at sunset.
Last updated on October 11th, 2024

Goldenrod Benefits: The Bee’s Knees for Allergies, Sinus Infections, and Urinary Tract Infections

Each fall, all across North America, goldenrod lights up meadows and fields with a refreshing blend of ruggedness and jubilation. In addition to the sunshine it lends to the landscape, its flowers attract native pollinators and beneficial insects. Goldenrod’s piney-tasting leaves and flowers are an important medicinal remedy for the urinary, digestive, and respiratory systems. The goldenrod tribe encompasses one hundred species of late-blooming, knee- or hip-high herbaceous perennials.

Reishi
Last updated on March 5th, 2025

Herbs for the Immune System

Before we dive into herbs for the immune system, we’re going to start with lifestyles for the immune system. Because herbs are really and truly the icing on the cake, whereas the day-to-day choices we make for how we want to live are the cake, so to say. The same things in life that make us feel vital, happy, connected, and energetic also make our immune cells feel perky and capable.