Volcanic Rock Dust (Basalt)
Micronutrient-Rich • Root Development • Soil Vitality
This premium Volcanic Basalt Rock Dust is mined from ancient volcanic deposits in British Columbia, Canada. Naturally rich in calcium, magnesium, iron, and silica, it delivers a broad spectrum of essential minerals and trace elements to support healthy soil biology and long-term plant vitality.
Key Benefits
🌱 Delivers Essential Micronutrients
Ensures your soil has the trace minerals needed to support a thriving soil food web.
🌾 Fine Particle Size for Fast Availability
Screened to a fine powder to maximize surface area and make minerals more readily available to plants and microbes.
🍂 Enhances Compost Quality
Add directly to compost piles to stimulate microbial activity and nutrient cycling.
🌳 Supports Root Growth & Higher Yields
Improves plant health, encourages strong root systems, and can increase crop yields.
🌼 Safe for All Plants
Will not burn plants and is safe for regular use in gardens, raised beds, and containers.
Application Rates
Garden & Beds
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Apply 200–300 g per 1 m² (10 ft²) up to 3–4 times per year.
Topdressing
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Apply 15 ml per 4 L (1 tbsp per gallon) of soil every 1–2 months.
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Lightly mix into the top 5 cm (2”) of soil.
Soil Premixing
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Mix 60–90 ml per 4 L (¼–⅜ cup per gallon) of soil.
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For larger batches, add up to 10 kg (22 lbs) per cubic yard of soil.
Guaranteed Analysis
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Calcium (Ca): 1.7%
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Magnesium (Mg): 1%
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Iron (Fe): 5.5%
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Manganese (Mn): 0.08%

This product complies with Canada’s Organic Production Systems General Principles & Management Standards and Permitted Substances Lists (CAN/CGSB-32.310-2021 CAN/CGSB-32.311-2020)