Description
What it is
BD 501 Horn Silica is the classic biodynamic atmospheric spray made from ground quartz crystal and highly siliceous crystals.
Use when
- You want to support photosynthesis, plant form, ripening, flavor, fragrance, shelf life, and crop quality.
- You are working after the last frost and through the growing season.
- You need a silica-focused preparation to complement soil sprays like BD 500 XP.
How to choose
The 24k blend is the broadest all-in-one option. Specialty gemstone blends are available for growers who want to work with a particular silica quality or crop context.
Good to know
Horn Silica from Biodynamic Source is potentized with 24k gold.
