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The Pfeiffer Center’s Year Long Training in Biodynamics covers the basic principles of biodynamic agriculture according to the seasons, in thirteen workshops.

In the classroom, we will discuss the lectures of Rudolf Steiner’s Agriculture Course and the values which define biodynamic practices.

In the field, lecture principles will be applied in practical farm & gardening exercises.

Field study includes mixing Biodynamic preparations, understanding the Biodynamic calendar, sowing cover crops, building compost piles, pruning, and much more.

For a full description of the training, visit this page; for the 2021-22 schedule, click here.

Tuition for the course is $1,475. Biodynamic Association members receive a $50 discount.


By purchasing your ticket, you are consenting to the Pfeiffer Center & Threefold Community terms of tuition agreement & refund policy.

Option 1 : First Time Registration : Pay in Full — $1475

Option 2 : Post Application Fee — $1455 (For those that missed their acceptance letter in the mail, who have already paid the $25 registration fee and would like to register online)

Option 3 : BDA Membership Discount ($50 Off!) — $1425

Option 4 : Payment Plan : Two Payments — $750 RSVP Ticket *

Option 5 : Payment Plan : Five Payments — $305 RSVP Ticket*

  • After paying for your RSVP ticket**, the Pfeiffer Center & Threefold Educational Finance Department will follow up regarding ongoing payment plans.
  • Please be responsive to follow up messages and check your spam mailbox!



Cancellation / Refund Policy :

Before August 1st : 100% Refund

Before Sept 19 : 50% Refund


2021-2022: Celebrating Our 25th Year!

9/18 & 10/16 Sessions will be held in the Threefold Auditorium

260 Hungry Hollow Rd,  NY 10977 | Class starts at 9!

Registration opens at 8:15. Class starts at 9.

Please come prepared to socially distance, and bring a mask !

We are doing our best to keep everyone safe while maintaining accessibility. We are capping the workshop at 45 total participants so registration will be first come first serve.

Please double check that your Pfeiffer Center emails are not going to spam, we use services such as constant contact to send workshop information.

To prepare for the first session please read the all of Lecture 1 and the second half of Lecture 4 of of Rudolf Steiner’s : Agriculture Course: Spiritual Foundations for the Renewal of Agriculture.You can also listen to the lectures for free on youtube.



Our first two sessions will be held in the Threefold Auditorium,

Address: 260 Hungry Hollow Rd, Spring Valley, NY 10977 : (845) 352-5020

Overnight accommodations can be arranged through the Holder House Management team
If you have questions please email [email protected]





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