Your Herbal Safety Guide is on the way! 

Head over to your inbox to download your Herbal Safety Guide, which should be landing momentarily.

If you’re a Gmail user, you may need to look under your Promotions tab. And please take a moment to add to your address book so you don’t miss a thing! 

If you have any trouble finding or accessing your guide, send a quick email to and we’ll get it sorted out as soon as possible.

Stay safe and happy herbing!  

Juliet Blankespoor

Chestnut School of Herbal Medicine

Ready to Take Your Herbal Knowledge to the Next Level?

Dive into our 25-hour Herbal Safety Course

Our Herbal Safety Course lays a clear path for becoming a trustworthy and careful herbalist.

Earn your Herbal Safety Certificate by completing the coursework within 3 months! 

You’ll have lifetime access to the entire course, including:

Essential Oils & Allergic & Topical Reactions

Learn how to safely use essential oils to avoid undesired reactions.

Herbal Safety & Contraindications Guide

A reference guide to the most common herbs of commerce.

Herbal Safety in Pregnancy & Lactation

General information for using herbs in pregnancy and lactation.

Herb-Drug Interactions & Serious Health Conditions

Herbs may not always be the sole support needed.

Bonus Material

Use photos or just text blocks? Add $ values? 

Water Hemlock

Safety for Foragers + Gardeners:
Common Poisonous Plants

Learn how to safely identify poison hemlock, water hemlock, and foxglove.

Poison ivy

Safety for Foragers + Gardeners:
Poison Oak, Ivy, and Sumac

Learn how to recognize and avoid these common skin irritants.

Herbal Safety Course

ETHICS, conduct + integrity for Clinical + Professional Herbalists

Learn the legalities and ethics of clinical herbalism in the United States.

My time at the Chestnut School was the catalyst for believing I could make my living by working with plant medicine. Beyond the knowledge and confidence gained through the program itself, Juliet provided encouragement and mentorship regarding how to build an herbal business and helped me form my vision for what my future herbal-based career could look like. I am always referring to this knowledge to help me design formulas for clients, grow herbs in my garden to supply my apothecary, and provide inspiration when I need to recharge in nature.”


Ricky BratzClinical Herbalist at Cazimi Healing and Chestnut School Graduate

Is our Herbal Safety Course right for you?


Are you an herbalist who knows you need a stronger foundation in herb-drug interactions, dangerous constituents, and basic botanical safety?


Are you brand new to herbs and want to embark on your herbal journey with a solid foundation in herbal safety?


Do you need a resource of commonly encountered Western herbs inappropriate for internal use during pregnancy?


Could you use a reference guide covering the most common herbs of commerce?

If you answered "yes" to any of these questions, this course is for you!

More courses to choose from:

If you want to go deeper with your herbal studies, our other programs include the Online Herbal Safety Course as part of their curriculum!

Take a peek at our Course Comparison Chart to get started on your herbal journey!

"Going to the Chestnut School has been one of the best decisions of my life. It very much shaped my path and is something I'm grateful for every day. I use my herbal knowledge in every possible way for my business! From plant identification to knowing what part to harvest, to knowing what the plant should look, feel, smell and taste like, to tuning into the plants message, to grounding my own energy…and feeling Chestnut's encouragement and support to get out there and offer my gifts (and the plants’) to the world!"


Katie GrearOwner, herbalist, and medicinal herb farmer at Kestrel Herb Farm, Chestnut School Graduate