Heron Botanicals
Cramp bark Glycerite (Viburnum opulus)
Strangely, cramp bark has become a hard-to-find herb. One individual was the supplier for nearly the entire United States. He decided he was done, and the market dried up. Luckily, projects are underway to fill the gap. We've planted 50 cramp bark plants and hope to plant many more in the coming years. A tribe in northern Canada has begun a harvesting project as well.
In the meantime, Dr. Yarnell says black haw (Viburnum prunifolium) is a perfect replacement for cramp bark (Viburnum opulus). He would love to rant at us all about how interchangeable they are and that people shouldn't prefer one over the other just because of a catchy common name. I'll spare you that rant. As soon as we can, we'll have cramp bark back for you. Unfortunately, most of the cramp bark currently available on the market is of poor quality. Stick with black haw for now. If you see us carrying cramp bark again, you'll know its supply is in the clear.
Practitioner accounts
Purchasing is limited to
Who can open a practitioner account
Qualified healthcare professionals, including Naturopathic Doctors, Osteopathic Physicians (DOs),
Medical Doctors (MDs), Chiropractors, Physician Assistants (PAs), Nurse Practitioners (NPs),
Acupuncturists, Midwives, Pharmacists, Registered Herbalists (AHG), certified Functional Medicine
Practitioners, licensed nutritionists (LN/RD/CNS), and clinical herbalists with advanced training
beyond introductory or self-guided coursework.
We don’t currently accept accounts from
Massage Therapists
Health Coaches
Registered Nurses (RNs) without prescribing authority
Nutritionists without clinical licensure
Yoga Instructors
Personal Trainers
Wellness Consultants without formal clinical training
and clinical herbalists, and to the clients they refer.
Received a recommendation? Log in with the email address it was sent to.
Cramp bark Glycerite (Viburnum opulus)
Orders placed by 6:00 p.m. typically ship on our next shipping day. We currently ship orders on Monday, Wednesday, and Friday.
Strangely, cramp bark has become a hard-to-find herb. One individual was the supplier for nearly the entire United States. He decided he was done, and the market dried up. Luckily, projects are underway to fill the gap. We've planted 50 cramp bark plants and hope to plant many more in the coming years. A tribe in northern Canada has begun a harvesting project as well.
In the meantime, Dr. Yarnell says black haw (Viburnum prunifolium) is a perfect replacement for cramp bark (Viburnum opulus). He would love to rant at us all about how interchangeable they are and that people shouldn't prefer one over the other just because of a catchy common name. I'll spare you that rant. As soon as we can, we'll have cramp bark back for you. Unfortunately, most of the cramp bark currently available on the market is of poor quality. Stick with black haw for now. If you see us carrying cramp bark again, you'll know its supply is in the clear.
Practitioner accounts
Purchasing is limited to
Who can open a practitioner account
Qualified healthcare professionals, including Naturopathic Doctors, Osteopathic Physicians (DOs),
Medical Doctors (MDs), Chiropractors, Physician Assistants (PAs), Nurse Practitioners (NPs),
Acupuncturists, Midwives, Pharmacists, Registered Herbalists (AHG), certified Functional Medicine
Practitioners, licensed nutritionists (LN/RD/CNS), and clinical herbalists with advanced training
beyond introductory or self-guided coursework.
We don’t currently accept accounts from
Massage Therapists
Health Coaches
Registered Nurses (RNs) without prescribing authority
Nutritionists without clinical licensure
Yoga Instructors
Personal Trainers
Wellness Consultants without formal clinical training
and clinical herbalists, and to the clients they refer.
Received a recommendation? Log in with the email address it was sent to.
We work with small growers and responsible wildcrafters, prioritizing long-term ecological health. Our commitment to sustainability includes both what we produce—and what we intentionally leave out.
Complex prodcuts lead to lots of questions. We have answers for you. Check out our FAQ.
Product Details
Made to the standards of Dr. Eric Yarnell and used in his clinical practice. If they aren’t good enough for his clinical practice, they aren’t good enough for us.