Organic Azomite Powder Fertilizer 0-0-0.2 (Micronized)
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Organic Azomite 0-0-0.2 Micronized
A broad-spectrum trace mineral supplement mined from ancient volcanic ash deposits — delivering approximately 70 trace and ultra-trace elements to remineralize depleted soils and support plant vitality.
Ideal Applications
FEATURES
🌋 Volcanic Ash Origin
Mined from a unique ancient volcanic ash deposit in Utah, Azomite's mineral profile reflects millions of years of geological concentration — a complex that no synthetic fertilizer can replicate.
🔬 ~70 Trace & Ultra-Trace Elements
Azomite delivers approximately 70 trace mineral elements and micro-minerals in a single product, including rare elements such as silica not commonly found in standard organic or synthetic fertilizers.
🧪 OMRI Listed for Organic Use
Azomite is OMRI Listed and approved for certified organic production, meeting the requirements of the USDA National Organic Program so you can use it with confidence on organic crops.
💧 Micronized Powder for Faster Uptake
The micronized particle size increases surface area for improved soil contact and mineral availability, allowing trace elements to begin interacting with soil biology more quickly than coarser grades.
🌱 Remineralizes Depleted Soils
Decades of intensive farming and irrigation can leach trace minerals from soil. Azomite restores a broad mineral spectrum, helping to rebuild the micronutrient foundation that supports plant health and flavor.
🛡️ Supports Plant Immunity & Pest Resistance
Many gardeners notice stronger, more resilient plants when trace minerals are replenished — healthy mineral nutrition is associated with improved plant cell integrity and natural resistance to stress.
🌾 Broad Crop Compatibility
Suitable for field crops, vegetables, fruits, vines, turf, ornamentals, trees, and houseplants. Azomite adapts to a wide range of growing systems from backyard raised beds to commercial acreage.
🐄 Dual Use — Crop & Animal Nutrition
Azomite is also approved and used as a livestock and poultry feed supplement, reflecting the same mineral-dense profile that benefits both plant and animal biology.
🧫 Tested for Heavy Metals
Our Azomite is independently lab tested for heavy metal content, with third-party results available in the Certificate of Analysis. We never make absolute heavy-metal-free claims — we show you the data.
🇺🇸 Sourced & Packaged in the USA
Mined and processed in the United States, then packaged at Greenway Biotech's facility in Madera, California — providing traceability from mine to bag.
DERIVED FROM
Azomite is a naturally mined mineral product — not a blended or engineered formula. Its complete mineral profile comes from a single geological deposit formed by ancient volcanic eruptions that deposited ash into a seabed environment over millions of years. The resulting rock contains an unusually broad concentration of trace and ultra-trace elements.
Mineral Sources
Volcanic Ash Deposit (Utah, USA)
The primary and sole source of all minerals in Azomite — a hydrated sodium calcium aluminosilicate (HSCAS) material containing the full ~70-element trace mineral profile.
Trace & Ultra-Trace Elements
Includes silica, calcium, magnesium, potash, and dozens of rare ultra-trace elements not present in most fertilizers — delivered in naturally occurring mineral ratios.
SCIENCE BEHIND THE FORMULA
⚗️ Soluble Potash (K₂O) — 0.2%
Potassium supports enzyme activation, stomatal regulation, and water transport within plant tissue. Even the modest 0.2% potash in Azomite contributes to the overall mineral balance.
🧱 Calcium — 1.8%
Calcium is critical for cell wall integrity and root tip development. Azomite's naturally occurring calcium contributes to soil structure and plant cell strength as part of its broader mineral profile.
✨ Magnesium — 0.5%
Magnesium is the central atom in chlorophyll, making it essential for photosynthesis. Azomite provides a modest but natural source of magnesium alongside its trace mineral complex.
🔩 Silica & Rare Elements
Silica strengthens plant cell walls and is associated with improved pest and disease tolerance. Azomite contains silica and a range of ultra-trace elements not found in conventional fertilizers.
Why Trace Minerals Matter
Macronutrients (N-P-K) are essential for basic plant growth, but trace elements serve as cofactors for hundreds of enzymatic reactions. When these are depleted — as often happens in intensively farmed or heavily irrigated soils — plants may exhibit unexplained deficiencies, poor flavor, and reduced vigor even with adequate NPK supplementation. Azomite addresses this gap by providing a broad-spectrum trace mineral profile from a naturally occurring geological source.
Visual Results Timeline
Azomite begins integrating into soil. Microbial populations may start interacting with newly available mineral ions. No visible plant changes expected at this stage.
Many gardeners notice improved color and increased root branching as trace minerals become more bioavailable. Results vary by soil conditions and existing mineral levels.
Cumulative effects on plant vigor, leaf density, and fruit development are often observed in subsequent harvests. Annual reapplication maintains the mineral foundation over time.
APPLICATION RATES & DIRECTIONS
| Application Area | Rate & Method |
|---|---|
| Field Crops |
Initial application: 75–200 lbs per acre. Annual maintenance: 50–100 lbs per acre, or as needed based on soil test results. |
| Citrus / Fruit / Vines |
Apply 1–5 lbs annually under the drip line, depending on tree size. Double the rate for decline or blight-affected trees. Grapes: Apply 0.5–1 lb around each plant and lightly till into soil. |
| Flowers, Plants & Vegetables |
Soil prep: 1 lb per 10 sq. ft. Rows: 1 lb per 25 ft of row, mixed into soil. Established beds: Sprinkle 1 tsp around each plant. Houseplants: Mix 1 tsp per 2-inch pot diameter before planting; reapply 1 tsp quarterly. Roses: 0.5–1 lb per plant, tilled lightly into soil. |
| Lawn & Turf |
Existing lawns: 44 lbs covers 12,000–15,000 sq. ft.; apply up to 4 times per year. New lawns: Apply at a heavier rate and till into soil before seeding or sodding. |
| Ornamentals & Shrubs | Apply 0.5–1 lb around each plant and lightly till into soil. |
| Trees |
Apply annually under the drip line from trunk to drip-line edge, based on trunk base diameter: 10 inches or less: 1–5 lbs 10–20 inches: 5–15 lbs 20 inches or more: 15–40 lbs |
HOW TO USE
Soil Preparation & New Beds
- Determine your application area in square feet or acres.
- Weigh out the appropriate amount of Azomite using the Application Rates table above.
- Broadcast Azomite evenly over the soil surface.
- Till or rake to a depth of 2–4 inches to incorporate into the root zone.
- Water the area to help initiate mineral contact with soil biology.
Established Plants, Trees & Shrubs
- Sprinkle the appropriate amount around the base of the plant or under the drip line of trees.
- Lightly work into the top 1–2 inches of soil with a hand cultivator or rake — avoid disturbing deep roots.
- Water thoroughly after application.
- Reapply annually or as needed based on plant performance and soil testing.
Lawn & Turf Application
- Use a broadcast spreader calibrated for fine powder application (or hand broadcast for small areas).
- Apply at 44 lbs per 12,000–15,000 sq. ft. for maintenance applications.
- Water the lawn after application to help settle the powder and prevent wind dispersion.
- Repeat up to 4 times per year for best results on high-use or depleted turf.
Pro Tip: Start With a Soil Test
Azomite is most effective when used to address documented trace mineral deficiencies. A basic soil test will reveal which elements are low, helping you determine application frequency and whether companion amendments such as Dolomite Lime or Gypsum may be warranted alongside Azomite for your specific soil profile.
When Azomite Is the Right Choice
- Soils depleted by years of intensive cropping with minimal mineral input
- Gardens where plants show unexplained deficiencies even with adequate N-P-K
- Organic growers needing an OMRI Listed broad-spectrum trace mineral source
- Fruit and vegetable gardeners wanting to improve flavor profile and nutritional density
- Turf and ornamental applications where long-term remineralization is the goal
When to Consider Other Options
- Acute, confirmed iron deficiency → Chelated Iron EDTA 13% corrects it faster
- Acute magnesium deficiency → Epsom Salt provides faster-acting foliar or soil correction
- Hydroponic systems → Azomite is insoluble and not suitable for hydroponic reservoirs
- Precise NPK fertilization programs → Azomite is a mineral supplement, not a primary nutrient source
AZOMITE CALCULATOR
SAFETY & HANDLING
Personal Protective Equipment (PPE)
- Wear a dust mask or N95 respirator when handling or broadcasting large quantities of powder to avoid inhalation of fine mineral dust
- Safety glasses recommended when working in windy conditions
- Gloves are optional for most applications; wash hands after handling
Storage Guidelines
- Store in a cool, dry location in a sealed bag or container to prevent moisture absorption and clumping
- Keep away from direct sunlight and extreme heat
- Store away from incompatible materials such as strong acids or oxidizers
- Keep out of reach of children and animals not intended for mineral supplementation
Application Precautions
- Avoid applying to wet soil in high-wind conditions to minimize dust
- Do not apply to aquatic environments or near water bodies — mineral runoff can alter aquatic chemistry
- Follow recommended application rates; higher rates are not necessarily more beneficial and may alter soil pH or mineral balance
- When used as an animal feed supplement, follow established feed guidelines for the relevant species
First Aid
- Inhalation: Move to fresh air. If respiratory symptoms persist, seek medical attention
- Eye contact: Flush with clean water for 15 minutes. Seek medical attention if irritation continues
- Skin contact: Wash with soap and water. Generally not irritating at typical application levels
- Ingestion: Rinse mouth. Azomite is a food-grade mineral product but is not intended for direct human consumption. Contact Poison Control (1-800-222-1222) if large quantities are ingested
Refer to the Safety Data Sheet (SDS) for complete safety information.
COMPLETE YOUR SYSTEM
Soil Health & Remineralization
Dolomite Lime
Raises soil pH and provides calcium and magnesium — an excellent companion to Azomite in acidic soils where mineral availability is restricted.
Gypsum (Calcium Sulfate)
Improves soil structure in clay soils without affecting pH. Pair with Azomite for a comprehensive soil amendment approach in compacted or sodium-affected soils.
Organic Soil Nutrition
Kelp Meal 2-0-4
Provides natural plant hormones, potassium, and additional micronutrients. Works synergistically with Azomite to support vigorous plant establishment and root health.
Bone Meal 3-15-0
High-phosphorus organic amendment for root development and flowering. Combine with Azomite to deliver both macro and trace mineral nutrition from organic sources.
Blood Meal 13-0-0
Fast-release nitrogen for vigorous vegetative growth. A complete organic program often includes a nitrogen source, phosphorus source, and a trace mineral supplement like Azomite.
Alfalfa Meal 2.5-0-2.5
Provides nitrogen, potassium, and triacontanol — a plant growth stimulant shown in research to support yield. Pair with Azomite for a balanced organic soil amendment routine.
FREQUENTLY ASKED QUESTIONS
What is Azomite and where does it come from?
Azomite is a naturally mined mineral product sourced from a unique geological deposit in Utah, USA. The deposit was formed when ancient volcanic eruptions deposited ash into a seabed environment, creating a hydrated sodium calcium aluminosilicate (HSCAS) material. Over millions of years, this material accumulated an unusually broad spectrum of approximately 70 trace and ultra-trace elements. The name "Azomite" stands for "A to Z Of Minerals Including Trace Elements." It is mined, processed, and sold without chemical alteration.
Is Azomite approved for organic farming?
Yes. Our Azomite Micronized is OMRI Listed for use in certified organic production, meeting the standards of the USDA National Organic Program. It is also registered with the appropriate state agricultural departments for use as a soil amendment. Always verify your specific certification body's requirements if you are seeking organic certification for your operation.
How is micronized Azomite different from granular or ultra-fine grades?
Micronized Azomite has a finer particle size than granular grades, which increases surface area for contact with soil particles and biology. This can support more consistent mineral distribution when broadcast applied. Ultra-fine (ite) powder is the finest available and is often used in hydration products or for mixing into liquid amendments, though Azomite remains largely insoluble regardless of particle size. For standard garden and agricultural applications, micronized powder is the most commonly used grade.
Can I apply too much Azomite?
While Azomite is a natural product, applying well above recommended rates is not more effective and may shift soil mineral balance in unintended ways. Follow the rates listed in the Application Rates & Directions section. For maintenance applications, an annual rate of 50–100 lbs per acre (or proportional rates for home gardens) is typically sufficient. If you are unsure, a soil test will help guide your application rate more precisely.
Will Azomite change my soil pH?
Azomite is generally considered pH-neutral and is not expected to significantly raise or lower soil pH at typical application rates. Unlike limestone or sulfur, it is not used as a pH amendment. However, because it is a complex mineral product, periodic soil testing is always recommended when making any amendment additions to your garden or field.
What trace minerals does Azomite contain?
The primary guaranteed analysis includes Soluble Potash (K₂O) 0.2%, Calcium 1.8%, Magnesium 0.5%, Chlorine 0.1%, and Sodium 0.1%. Beyond these, Azomite contains approximately 70 trace and ultra-trace elements including silica, iron, manganese, zinc, boron, selenium, and numerous rare earth elements. For the complete elemental breakdown, refer to our Certificate of Analysis. For a deeper look at why trace minerals matter, read Major Elements vs. Trace Elements: Why Your Plants Need Both.
Is Azomite safe to use around children and pets?
Azomite is a natural mineral product and is not acutely toxic at typical garden application rates. However, as with any fine mineral powder, inhalation of large quantities of dust should be avoided. Keep children and pets off treated areas until the powder has been watered in or incorporated into soil. The fine dust can be mildly irritating to eyes and respiratory tracts. Always store bags securely away from children.
Can Azomite be used in potting mixes or raised beds?
Yes. For raised beds and container mixes, Azomite is a popular addition during initial soil preparation. Use approximately 1 lb per 10 sq. ft. for raised beds, tilled into the top several inches. For containers, mix 1 tsp per 2-inch pot diameter into potting soil before planting, and reapply 1 tsp per pot quarterly. Many gardeners who use Azomite for raised bed remineralization — as described in our customer success stories — report strong results over multiple growing seasons. To understand how Azomite fits into a broader soil health strategy, see The 5 Fertilizers That Will Also Encourage Soil Health.
GROW WITH CONFIDENCE
Quality & Purity Standards
- OMRI Listed for certified organic production
- Registered with state agricultural departments as required
- Independently tested by third-party laboratories for quality assurance
- Independently lab tested for heavy metal content — Certificate of Analysis available for review
- Sourced from a single, verified geological deposit in Utah, USA
- Packaged at our facility in Madera, California
Returns & Guarantee
We stand behind the quality of our Azomite. If you are not satisfied with your purchase, we offer a 90-day money-back guarantee. Simply return the unused portion in its original packaging and we will process a full refund — no questions asked. Contact us at questions@greenwaybiotech.com to initiate a return.
Environmental Responsibility
- Our packaging is made from biodegradable materials — it can be left in your garden or compost where it will naturally degrade
- Azomite is a naturally mined mineral product with no chemical synthesis required
- We source raw materials responsibly and support sustainable farming practices
- Ongoing research into organic and environmentally friendly product solutions
Charitable Contributions
At Greenway Biotech, we believe in giving back to our community. 1% of all profits from our product sales go to the Greenway Foundation, dedicated to supporting children's education. Your purchase directly contributes to improving educational opportunities for children. Learn more at greenway.foundation.
About Greenway Biotech, Inc.
Greenway Biotech, Inc. has been a trusted source of fertilizers, soil amendments, and agricultural minerals since 1989. Originally established in California, we are now located at 17861 Road 24, Madera, CA 93638 — positioned in the heart of the San Joaquin Valley to better serve commercial and home growers alike. We specialize in CDFA-registered agricultural fertilizers, chelated micronutrients, organic amendments, and magnesium wellness products, with a commitment to technical accuracy, third-party testing, and regulatory compliance.
DOCUMENTS
Note: A product label PDF link should be added here once available. Replace the COA link above with the SDS-only standard pairing once a separate product label PDF is uploaded to Shopify CDN.
DISCOVER MORE
- Major Elements vs. Trace Elements: Why Your Plants Need Both — Understand why trace minerals are as important as NPK for plant health and soil biology
- The 5 Fertilizers That Will Also Encourage Soil Health — Discover which soil amendments, including Azomite, support long-term soil vitality beyond basic nutrition
HAVE QUESTIONS?
Check out our full FAQ page or contact our experts for personalized advice.