BDANC 40th Autumn Gathering
Nourishment from the Earth, Nourishment for the Earth: Biodynamic Agriculture in Practice
You are invited to our Autumn 2026 gathering where we’ll connect with community and engage in research to support the future of Biodynamic agriculture in Northern California.
When: Saturday September 26th and Sunday September 27th, 2026
This form accommodates one adult registration. If you are more, please fill out the form and add to your “cart” for each additional person over the age of 12.
Childen 12 and under have Free admission and meals. Complimentary child care can be available. Note in your registration an idea of what hours of the event you request child care.
BD #500 stimulates seed germination, root growth and humus formation. Use when planting, transplanting, or turning in cover crops.
How to use BD #500: Stir vigorously for one hour. Spray to soil immediately. Best results are achieved when used periodically throughout the season. One unit is enough for up to one acre when stirred properly.
The Compost Preparations BD #502-507 are placed into manure or compost. The set contains fermented and potentized Yarrow, Chamomile, Stinging Nettle, Oak Bark, Dandelion and Valerian that increase the proliferation of beneficial fungi and bacteria, stabilize nitrogen, attract trace elements and stimulate the silica, calcium, potassium, phosphorus and sulphur processes.
Composition of the Biodynamic Compost Set
BD #502 - Yarrow Preparation: Permits plants to attract trace elements in extremely dilute quantities for their best nutrition.
BD #503 - Chamomile Preparation: Stabilizes nitrogen (N) within the compost; increases soil life so as to stimulate plant growth.
BD #504 - Stinging Nettle Preparation: Stimulates soil health, providing plants with the individual nutrition components needed. "Enlivens" the earth (soil).
BD #505 - Oak Bark Preparation: Provides healing forces (or qualities) to combat harmful plant diseases.
BD #506 - Dandelion Preparation: Stimulates relation between Silica (Si) and Potassium (K) so that Silica can attract cosmic forces to the soil.
BD #507 - Valerian Preparation: Stimulates compost so that phosphorus components will be properly used by the soil.
BD #501 should be used after BD #500 has been used. It stimulates photosynthesis and the ripening process, regulates leaf growth, enhances flavor and storage quality.
How to use BD #501: Stir vigorously for one hour in sufficient water to meet your application requirements. Apply immediately to foliage. Apply periodically during the growing season. One unit is enough for once acre when stirred properly. Spray in early morning before sunrise or the heat of the day.
Barrel Compost based on Maria Thun’s recipe developed to counter uptake of radio-active fallout. Contains BD #502-507, basalt and eggshells. Useful when access to BD compost is limited and when plants are under stress. Should not be regarded as a long-term substitute for properly made BD compost.
How to use Barrel Compost: Stir vigorously for twenty minutes. Spray to soil immediately. Best results are achieved when used periodically throughout the season. One unit is enough for up to one acre when stirred properly.
Stella Natura Biodynamic Planting Calendar for 2026
Working with Cosmic Rhythms
The Stella Natura calendar offers advice for when to sow seeds and cultivate garden and farm crops to enhance their roots, flowers, leaves or fruits. This is based on the Moon’s passage through the constellations of the zodiac. Unfavorable times for sowing are also indicated, to help avoid those inexplicable crop failures.
When: Saturday September 26 and Sunday September 27, 2026
Where: Three Springs Community Farm, Sonoma County, CA
Meals:
Saturday Breakfast: $15
Saturday Lunch: (Potluck- please bring a dish to serve at least 4 people)
Saturday Dinner: $20
Sunday Breakfast: $15
FULL Meal Plan $50
Catered meals must be reserved/pre-purchased by TUESDAY September 22nd.