FREE SHIPPING ON ALL ORDERS OVER $100 (CONTINENTAL US ONLY!)

Rose and Flower Fertilizer 4-7-5 powder for vibrant blooms

Organic Azomite Powder Fertilizer 0-0-0.2 (Micronized)

Organic Azomite Powder Fertilizer 0-0-0.2 (Micronized)

Regular Price: $ 19.99

Sale Price: $ 19.99
Regular Price

Sold Out

Unit Price: $ 19.99per lb

Weight: 1 Pound

1 Pound

2 Pounds

3 Pounds

4 Pounds

5 Pounds

10 Pounds

15 Pounds

20 Pounds

25 Pounds

Price per lb by size: larger sizes save up to 88%

Size	Price	Per lb	Per lb vs 1 Pound
1 Pound	$ 19.99	$ 19.99	–
2 Pounds	$ 22.99	$ 11.50	42% less
3 Pounds	$ 24.99	$ 8.33	58% less
4 Pounds	$ 29.99	$ 7.50	62% less
5 Pounds	$ 31.99	$ 6.40	68% less
10 Pounds	$ 41.99	$ 4.20	79% less
15 Pounds	$ 45.99	$ 3.07	85% less
20 Pounds	$ 49.99	$ 2.50	87% less
25 Pounds	$ 57.99	$ 2.32	88% less

Shipping costs and limits

Continental US, Standard shipping: free on orders of $100 or more, $9.99 on orders under $50, and $14.99 from $50 up to $100.
UPS and FedEx options are also offered at checkout, at their own rates.
Orders placed by 11 AM Pacific on a business day ship the same day.
Alaska, Hawaii, US territories, APO/FPO and international addresses: the cost is shown at checkout, and 2-day delivery isn’t available to Alaska, Hawaii or P.O. boxes.

Full shipping policy

Greenway Biotech · Family-owned in California since 1989

Azomite 0-0-0.2 Micronized.
Seventy trace minerals from a single ancient volcano.

An OMRI Listed mineral amendment mined from a single hydrated sodium calcium aluminosilicate (HSCAS) deposit in central Utah, formed roughly 30 million years ago when volcanic ash settled into a mineral-rich seabed. One bag delivers approximately 70 trace and ultra-trace elements — silica, calcium, magnesium, rare earths — that decades of intensive cropping and irrigation can leach from soil. Independently lab tested with heavy metal results consistently well below required limits.

Find your size → Calculate how much I need

70⁺

Trace & ultra-trace elements in a single mineral

30M^yrs

Volcanic seabed deposit — geological concentration

1.8^{% Ca}

Plus 0.5% Mg and 0.2% K₂O on the guaranteed analysis

37^yrs

Greenway Biotech, family-owned California since 1989

01 / Choose your size

Right-sized for the job.

Coverage estimates use the home-garden soil-prep rate (1 lb per 10 sq ft) as the planning anchor. Field-crop, lawn, and tree rates are higher per unit area — see Application Rates below for those use cases.

Azomite micronized coverage by bag size at home-garden soil-prep rate
Bag Size	Garden Coverage	Lawn Coverage	Best For
2 lb	~20 sq ft soil prep	~600 sq ft maintenance	Small raised beds & houseplants
5 lb	~50 sq ft soil prep	~1,500 sq ft maintenance	Most popular · Home gardens
10 lb	~100 sq ft soil prep	~3,000 sq ft maintenance	Raised-bed gardens & orchards
25 lb	~250 sq ft soil prep	~7,500 sq ft maintenance	Large gardens & small acreage
44 lb	~440 sq ft soil prep	12,000–15,000 sq ft per application	Best value · Lawns & field crops

Choose your size →

02 / Ideal applications

One mineral.
Six different jobs.

Azomite is a long-cycle remineralizer — it supplies trace elements that NPK fertilizers don't address. Crop response is strongest where soils are mineral-depleted or where a soil test confirms low micronutrient status.

Tomatoes & Peppers

The best-studied crops for Azomite response. Peer-reviewed greenhouse and field trials have reported increased fruit number per plant when Azomite was added to the soil prep or applied in-row.

Vegetables & Flowers

Broadcast 1 lb per 10 sq ft into the top several inches of soil before planting. A practical inclusion when building beds from depleted or sandy soils.

Trees & Orchards

Apply annually under the drip line, scaled to trunk diameter (1 lb for small trees up to 15–40 lbs for mature specimens). May support older orchards on long-cropped ground.

Lawn & Turf

Use 2–3 lb per 1,000 sq ft for established lawns (Azomite Mineral Products turf guidance). One 44 lb bag covers 12,000–15,000 sq ft per application.

Greenhouse & Potting Mix

Blend 7–10 lb per cubic yard of potting mix at media prep. For finished containers, work 1 tsp per 2-inch pot diameter into the top inch and reapply quarterly.

Animal Feed Supplement

Azomite is also approved as a livestock and poultry feed supplement. Follow species-specific feed guidelines from your feed supplier or veterinarian; do not exceed label rates.

03 / Why Azomite

A single mineral.
A complete trace profile.

Macronutrients drive growth. Trace minerals drive the enzymes that make growth work. Azomite addresses the second half of that equation in one bag.

70⁺

Trace & ultra-trace elements in one product.

Azomite delivers approximately 70 trace mineral elements — silica, iron, manganese, zinc, boron, selenium, plus rare earth elements (lanthanides) not commonly found in standard organic or synthetic fertilizers. Read why major and trace elements both matter.

30M^yrs

Geological concentration, not engineered blend.

The Utah deposit was formed when an ancient volcanic eruption deposited ash into a mineral-rich seabed roughly 30 million years ago. The result is a hydrated sodium calcium aluminosilicate (HSCAS) ore — a single rock that no blended fertilizer can replicate.

OMRI

Listed for certified organic production.

Azomite is OMRI Listed and meets the requirements of the USDA National Organic Program. Use it with confidence on certified organic operations — and verify your certifier's specific input requirements before applying.

−200^mesh

Micronized for surface area.

Micronized Azomite is ground to approximately −200 mesh (around 75 microns), increasing surface area for contact with soil particles and microbial biology. Finer particle size supports more consistent broadcast distribution and faster interaction with soil chemistry than coarser grades.

pH 8

Effectively pH-neutral at typical rates.

Although Azomite itself measures around pH 8, adding it to soil at typical application rates does not significantly raise soil pH. Unlike dolomite lime or sulfur, Azomite is not used as a pH amendment — it sits alongside whatever liming program your soil already needs.

Tested

Independently lab tested for heavy metals.

Our Azomite is independently lab tested for heavy metal content with results consistently well below required limits. Third-party results are available in the Certificate of Analysis linked in Section 12.

04 / The science

Why trace minerals matter.

300+

Enzymatic reactions in plant metabolism that depend on trace mineral cofactors

Macronutrients — nitrogen, phosphorus, potassium, calcium, magnesium, sulfur — are the structural and energetic raw materials plants consume in measurable percentages of dry matter. Trace minerals are the cofactors. Iron, manganese, zinc, copper, boron, molybdenum, nickel, and dozens of ultra-trace elements each catalyze specific enzymatic reactions — chlorophyll synthesis, nitrogen fixation, hormone regulation, lignin formation, sugar transport. Without them, the macronutrient pool is biochemically inert.

The Azomite ore is hydrated sodium calcium aluminosilicate (HSCAS) — a complex silica matrix that holds its trace mineral inventory in a slow-release form. The fraction that is plant-available depends on soil pH, microbial activity, root exudates, and time. This is why Azomite is positioned as a soil-building amendment rather than a fast-correction product: in mineral-depleted soils, regular application over multiple seasons rebuilds the trace mineral pool the soil food web draws from.

The independent research literature is concentrated on tomato and pepper. Peer-reviewed greenhouse work at UC Berkeley / USDA-ARS reported statistically significant increases in fruit number per plant when Azomite was applied at 5% by weight in soil or 4.5 g per plant per month via drip (Mehlferber et al. 2022, Applied & Environmental Microbiology). A Colorado State University field trial on certified-organic pepper reported a 68% increase in red-fruit weight per plant at 100 lb/acre banded in-row, with response varying by cultivar (Uchanski & Mason, CSU Extension, 2017). For broadacre crops the published evidence base is narrower — the field rates published in this product page are manufacturer recommendations that fall within the range validated in the CSU work.

For a deeper read on the broader category, see The 5 Fertilizers That Will Also Encourage Soil Health and How Do Soil Microbes Affect Plant Health.

05 / Application rates

Pick your use.
Get your rate.

Rates below are drawn from peer-reviewed research (CSU Extension, UC Berkeley / USDA-ARS, Iranian Journal of Plant Physiology) and the Azomite Mineral Products manufacturer guidelines. The peer-reviewed evidence base is strongest on tomato and pepper — broadacre field rates are manufacturer recommendations validated within the CSU trial range. Always start with a soil test.

Home Garden, Raised Beds & Established Plantings

Quick answer: 1 lb per 10 sq ft tilled into the top 2–4 inches before planting. For established beds, sprinkle 1 tsp around each plant and water in.

Azomite home garden rates by use case
Use Case	Rate	Source	Notes
Bed soil prep (new or annual)	1 lb per 10 sq ft	Azomite Mineral Products label	Broadcast, then till or rake to 2–4 inch depth before planting
Row application	1 lb per 25 linear ft	Azomite Mineral Products label	Band along row before seeding or transplanting; lightly incorporate
Established plants & established beds	1 tsp per plant	Azomite Mineral Products label	Sprinkle around base, work into top 1–2 inches with a hand cultivator
Tomato (greenhouse, soil-mixed)	5% by weight at soil mix or transplant	Mehlferber et al. 2022 (Appl. Environ. Microbiol.)	Peer-reviewed; statistically significant increase in fruit number per plant
Roses & ornamental shrubs	0.5–1 lb per plant	Azomite Mineral Products label	Till lightly into soil at the drip line; once per growing season

Note: Azomite is a long-cycle remineralizer rather than a quick-fix product. Expect cumulative benefits over 2–3 growing seasons of regular application — most visible on soils that have been intensively cropped or irrigated for many years.

Sources: Azomite Mineral Products official application guidelines; Mehlferber et al. 2022 (Applied & Environmental Microbiology, UC Berkeley / USDA-ARS); Noorani Azad et al. 2016 (Iranian Journal of Plant Physiology).

Field Crops, Pasture & Commercial Production

Quick answer: 100–200 lbs/acre banded in-row for high-value vegetables; 150–300 lbs/acre broadcast for field crops on poor or depleted soils.

Azomite field-crop application rates with research source
Application Method	Rate	Source	Notes
Pepper, banded in-row (organic field trial)	100 lb/acre	Uchanski & Mason, CSU Ext. (2017)	Peer-reviewed; +68% red-fruit weight per plant for 'Early Perfect Italian'. Most economically efficient rate in the trial.
Pepper, banded in-row (alternative cultivar)	200 lb/acre	Uchanski & Mason, CSU Ext. (2017)	Peer-reviewed; best result for 'Stocky Red Roaster'. Response was cultivar-dependent — trial on a small block first.
Broadcast — high-value crops, poor soils	150–300 lb/acre	Azomite Mineral Products label	Use the upper end on highly depleted ground. Incorporate before planting.
Banded application — row crops	100 lb/acre	Azomite Mineral Products label	Concentrates the mineral in the root zone; more efficient than broadcast at lower rates.
In-row banded	50 lb/acre	Azomite Mineral Products label	Lowest rate for tight in-row placement at planting.
Annual maintenance (established programs)	50–100 lb/acre	Azomite Mineral Products label	Roughly half the initial broadcast rate; adjust per soil test.
Foliar / fertigation (micronized)	3–5 lb/acre per application	Azomite Mineral Products label	Multiple applications per season; settling expected — see foliar note below.

📋 Soil Test First: Field crop application rates above are general guidelines based on the manufacturer's published recommendations and the cultivar-dependent CSU pepper trial. Actual rates should be confirmed by a current soil test and consultation with your local cooperative extension service. The peer-reviewed Azomite literature does not yet provide robust dose-response data for corn, soybean, wheat, or alfalfa — trial on a small block before committing across a whole operation.

Sources: Uchanski & Mason, Colorado State University Extension (2017); Azomite Mineral Products official application guidelines; Mehlferber et al. 2022 (Applied & Environmental Microbiology).

Foliar / fertigation note: Azomite is largely insoluble regardless of particle size. The micronized grade can be suspended in irrigation water at 3–5 lb/acre, but expect settling in the reservoir — agitate before injection, run through screens larger than 80 mesh, and rinse lines after each application.

Trees, Orchards, Citrus & Vines

Quick answer: Scale to trunk diameter — 1 lb for small trees, up to 15–40 lb for mature specimens. Apply annually under the drip line.

Azomite tree and vine rates by trunk diameter
Tree / Vine Category	Rate	Source	Notes
Trunk < 3 inches	1 lb per tree	Azomite Mineral Products label	Apply under drip line; lightly work into top 1–2 inches
Trunk 3–7 inches	2–4 lb per tree	Azomite Mineral Products label	Spread evenly from trunk to drip-line edge
Trunk 7–12 inches	5–10 lb per tree	Azomite Mineral Products label	Annual application; water in thoroughly
Trunk 12–20 inches	10–15 lb per tree	Azomite Mineral Products label	Distribute as a light surface coating across full drip line
Trunk > 20 inches	15–40 lb per tree	Azomite Mineral Products label	Mature specimens; double the rate on declining trees
Citrus, fruit & vines (established)	1–5 lb annually per tree/vine	Azomite Mineral Products label	Under drip line; depends on tree size
Grapes (per plant)	0.5–1 lb per vine	Azomite Mineral Products label	Lightly till into soil at the base

Note: Apply as a light surface coating from the trunk to the drip-line edge — that's where active feeder roots concentrate. Avoid mounding against the trunk. Double the rate for trees in obvious decline, but verify the decline isn't a pH, drainage, or pest issue first.

Source: Azomite Mineral Products official application guidelines.

Lawn, Turf & Sports Fields

Quick answer: 2–3 lb per 1,000 sq ft for established lawns, once per year. One 44 lb bag covers approximately 12,000–15,000 sq ft per application.

Azomite lawn and turf application rates
Turf Type	Rate	Source	Notes
Established lawn (residential)	2–3 lb per 1,000 sq ft, once per year	Azomite Mineral Products label	Equivalent to 1 × 44 lb bag per 12,000–15,000 sq ft
Golf course, sports turf, commercial	2–3 lb per 1,000 sq ft, once per year	Azomite Mineral Products turf guidance	Water in after application; ideal pre-aeration timing
New lawn (pre-seeding or pre-sod)	Heavier rate, tilled into soil	Azomite Mineral Products label	Build the mineral pool into the rooting zone before establishment
Foliar / fertigation (micronized)	0.07–0.11 lb per 1,000 sq ft as needed	Azomite Mineral Products label	Low-rate suspension; agitate and pre-filter

Note: Avoid applying in high-wind conditions to limit dust dispersion. Water in thoroughly after application to settle the powder and prevent foot-traffic tracking. For best results, time the application to coincide with aeration or top-dressing.

Source: Azomite Mineral Products official turf application guidelines.

Containers, Houseplants & Greenhouse Media

Quick answer: 7–10 lb per cubic yard of potting mix at media prep. For finished containers, 1 tsp per 2-inch pot diameter mixed into the top inch; reapply 1 tsp quarterly.

Azomite container and greenhouse rates
Use Case	Rate	Source	Notes
Potting mix preparation	7–10 lb per cubic yard	Azomite Mineral Products label	Blend thoroughly into the bulk media before filling containers
Houseplants (initial)	1 tsp per 2-inch pot diameter	Azomite Mineral Products label	Mix into the top inch of soil at planting
Houseplants (maintenance)	1 tsp per pot, quarterly	Azomite Mineral Products label	Top-dress and lightly scratch into the surface; water in
Greenhouse tomato (peer-reviewed drip)	~1 g per plant per application (monthly cycle of ~4.5 g/plant/month)	Mehlferber et al. 2022 (Appl. Environ. Microbiol.)	Delivered at base of plant via drip; ultrafine grade preferred for suspension

Note: Micronized Azomite settles in still water. For drip and reservoir delivery in greenhouse systems, the ultra-fine grade is preferred — see Azomite Ultra-Fine. Some settling will still occur; agitate before injection.

Sources: Azomite Mineral Products official application guidelines; Mehlferber et al. 2022 (Applied & Environmental Microbiology, UC Berkeley / USDA-ARS).

06 / How to use & calculate

Broadcast.
Incorporate.
Water in.

Azomite works through soil contact — surface broadcasts that aren't worked in or watered will sit dormant. Three steps move it into the active root zone.

01

Calculate & weigh

Use the calculator to translate your area, row length, plant count, or trunk diameter into a pound figure. Weigh out the right amount rather than relying on volume — Azomite's bulk density varies with packing.
02

Broadcast evenly

Spread by hand for small areas, with a calibrated drop or broadcast spreader for larger ones. A dust mask is recommended when broadcasting more than a few pounds in still air — particle size is fine enough to airborne easily.
03

Incorporate & water

Till or rake into the top 2–4 inches of soil for new beds, or work into the top 1–2 inches with a hand cultivator for established plantings. Water thoroughly afterward to start mineral contact with soil biology.
04

NOT a hydroponic reservoir nutrient

Micronized Azomite is largely insoluble — it will settle in standing reservoirs. For hydroponic systems, the ultra-fine grade is the right choice and some settling should still be expected. Azomite is also not a substitute for a balanced NPK program; pair it with a complete fertilizer.

07 / Compare

Six soil-building inputs.
Different jobs.

Azomite is a broad-spectrum trace mineral source. Most other soil amendments target one or two specific nutrients or one specific soil chemistry problem. Combine them based on what your soil test shows.

Azomite micronized vs other soil amendments
Product	Primary Function	N-P-K	Best For	Notes
Azomite Micronized (this product)	~70 trace & ultra-trace elements	0-0-0.2	Long-cycle remineralization, depleted soils, organic systems	OMRI Listed; not a primary NPK source
Azomite Ultra-Fine	Same mineral profile, finer particle size	0-0-0.2	Hydroponic reservoirs, liquid suspensions, drip injection	Some settling expected; agitate before use
Dolomite Lime	Raises pH; adds Ca and Mg	0-0-0 (22% Ca, 11% Mg)	Acidic soils, Ca/Mg deficiency, pH correction	Active pH amendment — Azomite is not
Gypsum (Calcium Sulfate)	Improves soil structure; adds Ca and S without changing pH	0-0-0 (~22% Ca, ~17% S)	Clay soils, sodium-affected soils, structure problems	Pair with Azomite in compacted soils
Kelp Meal	Hormones + K + trace minerals from marine source	2-0-4	Vigorous establishment, root health, organic programs	Different trace profile than Azomite — complementary
Epsom Salt (Magnesium Sulfate)	Fast-acting Mg + S	0-0-0 (10% Mg, 13% S)	Acute, confirmed Mg deficiency — soil or foliar correction	Faster than Azomite for Mg-only problems

08 / Decision

Is this the right
amendment for you?

Azomite is a long-cycle, broad-spectrum soil builder. It is not a quick correction tool and it is not a primary fertilizer. Match it to the right use case.

Best Choice For

Soils depleted by years of intensive cropping or irrigation with minimal mineral input
Gardens where plants show unexplained deficiencies despite adequate N-P-K
Organic growers needing an OMRI Listed broad-spectrum trace mineral source
Tomato and pepper growers — the most peer-reviewed crops for Azomite response
Fruit and vegetable gardeners looking to improve mineral density over multiple seasons
Turf and ornamental programs where long-term remineralization is the goal
Container and greenhouse media programs needing a trace mineral component

Consider Another Product If

You need a primary NPK fertilizer — Azomite supplies 0-0-0.2; pair with blood meal or bone meal for the macros
You have acute, confirmed iron deficiency — Chelated Iron EDTA 13% corrects it within days
You have acute, confirmed magnesium deficiency — Epsom Salt works faster as a foliar or soil correction
You need a pH correction — try Dolomite Lime (raises pH) or sulfur (lowers pH); Azomite is essentially pH-neutral
You're running a fully soluble hydroponic system — use Azomite Ultra-Fine with the caveat that some settling is unavoidable
Your soil test shows micronutrient levels already at or above sufficiency — more Azomite won't help and may shift mineral balance

09 / Build the program

Azomite supplies the trace minerals.
These complete the program.

A balanced organic fertility program typically pairs Azomite with a primary nitrogen source, a phosphorus source, and pH or structure amendments as the soil test requires.

K + hormones

Kelp Meal 2-0-4

Marine-derived potassium with plant growth hormones (cytokinins, auxins) and a different trace mineral profile than Azomite. The two are complementary, not redundant.

Phosphate + Ca

Bone Meal 3-15-0

High-phosphorus organic amendment for root and flower development, with 24% calcium. Pair with Azomite for macros + trace minerals from organic sources.

Fast nitrogen

Blood Meal 13-0-0

Fast-release organic nitrogen for vigorous vegetative growth. A complete organic program needs nitrogen, phosphorus, and a trace mineral supplement — Azomite is the third leg.

Soil structure

Gypsum (Calcium Sulfate)

Improves structure in clay or compacted soils without affecting pH. Combine with Azomite where compaction or sodium is limiting root access to the trace mineral pool.

10 / Safety & handling

Read this before
you broadcast.

Azomite is a natural mineral product, not acutely toxic at typical application rates. The main hazard is fine dust during handling.

Wear an N95 dust mask or respirator when broadcasting more than a few pounds in still air. Safety glasses are recommended in windy conditions.
Store in a sealed bag or container in a cool, dry location away from moisture, direct sunlight, and incompatible materials (strong acids, oxidizers). Out of reach of children and pets not intended for mineral supplementation.
Avoid applying in high-wind conditions to limit dust dispersion. Do not apply to aquatic environments or near water bodies — mineral runoff can shift aquatic chemistry. Water in after application.
Follow recommended rates — higher is not more effective and may shift soil mineral balance. When used as an animal feed supplement, follow species-specific feed guidelines.
First aid: inhalation — move to fresh air; eye contact — flush with clean water for 15 minutes; skin contact — wash with soap and water; ingestion — rinse mouth and contact Poison Control (1-800-222-1222) if a large quantity is ingested. See SDS for full details.

11 / FAQ

Common questions.
Honest answers.

If your question isn't here, contact our team at questions@greenwaybiotech.com.

What is Azomite and where does it come from?

Azomite is a naturally mined mineral product from a single geological deposit in central Utah, USA. It is a hydrated sodium calcium aluminosilicate (HSCAS) — a complex silica ore formed roughly 30 million years ago when an ancient volcanic eruption deposited ash into a mineral-rich seabed. Over geological time, that material accumulated approximately 70 trace and ultra-trace elements. The name stands for "A to Z Of Minerals Including Trace Elements." It is mined and processed without chemical alteration.

Is Azomite approved for certified organic production?

Yes. Our Azomite Micronized is OMRI Listed for use in certified organic production and meets the standards of the USDA National Organic Program. It is also registered with the appropriate state agricultural departments as a soil amendment. Always verify your specific certifier's requirements if you are seeking certification for your operation.

What's the difference between micronized and ultra-fine Azomite?

Both grades come from the same Utah deposit and carry the same mineral profile. The difference is particle size. Micronized Azomite is ground to approximately −200 mesh — fine enough for even broadcast distribution and quick soil contact, suited to garden, field, and lawn applications. Ultra-fine is finer still and is preferred for liquid suspensions, drip injection, and hydroponic reservoir use, though some settling is unavoidable because Azomite is largely insoluble at any particle size. For more on how it fits an organic program, see The Organic Gardener's Guide to Soil Preparation.

What does the peer-reviewed research actually say about Azomite?

The independent literature is concentrated on tomato and pepper. A UC Berkeley / USDA-ARS greenhouse study (Mehlferber et al. 2022, Applied & Environmental Microbiology) reported statistically significant increases in fruit number per tomato plant when Azomite was applied at 5% by weight in soil or ~4.5 g per plant per month via drip. A Colorado State University certified-organic pepper field trial (Uchanski & Mason, CSU Extension 2017) reported a 68% increase in red-fruit weight per plant at 100 lb/acre banded in-row, with response varying by cultivar. Pot work on tomato under drought stress (Noorani Azad et al. 2016, Iranian J. Plant Physiology) reported improved biomass and chlorophyll at 25–100 g/pot. For broadacre crops, robust dose-response data is not yet published — manufacturer rates fall within the range validated in the CSU work.

Can I apply too much Azomite?

While Azomite is a natural mineral product, applying well above recommended rates is not more effective and may shift soil mineral balance in unintended ways. Follow the rates in the Application Rates section. For broadcast maintenance, 50–100 lb/acre or proportional home-garden rates are typically sufficient annually. If you are unsure whether to apply at all, a soil test will help guide both the decision and the rate.

Will Azomite change my soil pH?

Azomite has a measured pH around 8, but adding it to soil at typical rates does not significantly raise soil pH. It is not a pH amendment. If your soil is acidic and you need to raise pH, use dolomite lime instead; if alkaline and you need to lower pH, use elemental sulfur. Azomite sits alongside whichever liming program your soil already needs.

What trace minerals does Azomite contain?

The guaranteed analysis on the registered label is Soluble Potash (K₂O) 0.2%, Calcium 1.8%, and Magnesium 0.5%. Beyond the guaranteed analysis, Azomite contains approximately 70 trace and ultra-trace elements — silica, iron, manganese, zinc, boron, selenium, and numerous rare earth elements (lanthanides). For the complete elemental breakdown, see the Certificate of Analysis linked in the Documents section. For a deeper read on why trace minerals matter, see Major Elements vs. Trace Elements: Why Your Plants Need Both.

Is Azomite safe around children and pets?

Azomite is a natural mineral product and is not acutely toxic at typical application rates. The primary handling concern is inhalation of fine dust — keep children and pets off treated areas until the powder has been watered in or incorporated into soil. Store bags securely. As an animal feed ingredient, Azomite has been approved for livestock and poultry use under species-specific guidelines; that is a separate application from horticultural use.

Can Azomite be used in raised beds, containers, or potting mixes?

Yes. For raised beds, use 1 lb per 10 sq ft tilled into the top several inches at bed prep. For potting mix preparation in bulk, blend 7–10 lb per cubic yard of media. For finished containers and houseplants, mix 1 tsp per 2-inch pot diameter into the top inch of soil at planting, and reapply 1 tsp per pot quarterly. Many gardeners report cumulative benefits over multiple growing seasons. For broader soil-prep context, see The 5 Fertilizers That Will Also Encourage Soil Health.

12 / Documents

Lab-tested.
OMRI Listed.

Download the SDS and Certificate of Analysis for the registered guaranteed analysis and third-party heavy metal results.

Safety Data Sheet (SDS) PDF — Compliance and handling

Certificate of Analysis (COA) PDF — Guaranteed analysis & mineral profile

Heavy Metal Analysis Third-party lab report — Available on request

Ready to remineralize?

Pick your bag. We'll ship it.

Available in 2 lb, 5 lb, 10 lb, 25 lb, and 44 lb. Free shipping on orders over $100. Backed by our 90-day money-back guarantee — return the unused portion for a full refund.

Choose your size →

5 stars: 31 (89%)
4 stars: 2 (6%)
3 stars: 1 (3%)
2 stars: 0 (0%)
1 star: 1 (3%)

Excellent

Great product! Use it every year on my vegetable garden and peonies.

Great product

Great and easy to use

I'm satisfied with the Azomite and your prompt service.

rocks

haven't used it long enough to see a difference

I never received it!

I never received it!

Good Service

My Experience has been great thanks for the nice products and your service

Azomite Powder 0-0-0.2

it's awesome keep up thegood work

Azomite Powder

Excellent I would use this product again. My indoor grown micro Greens 🥬 were plentiful & tasty.

Great product

Easy fast delivery on a great product straight from the source. And way cheaper than amazon! Thanks Greenway!

azomite

So far so good, very pleased with the results of adding nutrients back into the soil.

Good natural fertilizer

I just started to use it. Plants seem to be doing great so far.
Delivery was very prompt.

Great Stuff!

I need small quantities of special nutrients and soil amendments for my hot pepper growing hobby. I have used Greenway Biotech’s products for several years now. Quick shipping and reasonable prices will keep me coming back!

First time User

This was the first time I have ordered the Azomite powder. Ordering online was easy and I received my order in less than a week.I will be using your website for other products also.

Figs

Greenway Biotech has the best quality good price quick shipping very happy! I will buy again from them

[****] I have known about and used Azomite for well over 40 years and have written to people all around the world telling them what great things Micronized Azomite can do for thise who use it

I did buy again!

I ordered Azomite Powder at the end of the 2020 growing season to re-mineralize my 20-year old raised beds and newly prepared beds. I used up my first large bag and ordered a second bag in early 2021. Greenway BioTech has the best price, when you factor in free shipping, and the shipping was very rapid! Both purchases arrived within 2-3 days of ordering. I was very impressed and will be making future purchases from Greenway BioTech.

Azomite Powder

I have'nt used this bag yet, but I have bought it before and used it on my fig trees and were satisfied.

A+ store

Item arrived quickly. Customer service was very pleasant to deal with. Will purchase from again.

Fast delivery

Great

Azomite powder

You can see the results right away, this is the best product out there, for those of you whom have not tried this it is a must have for your garden.

Quick delivery

Very good, quick delivery.

Excellent product!!

My papaya seeds germinated and now I have 48 healthy vigorous little plants out of 50 seeds. They are significantly bigger and healthier than the ones I germinated Before without azomite. I’m so happy to find this product!...

Azomite powder

I am absolutely blown away by how well this product works.

azomite purchase 44lb bag

just used it now on my raised beds, hoping for good results. Great packaging and good delivery - thank you.

Simple

My experience was excellent. Thank You.

great product and fast shipping

1st time buyer. will definitely be buying from greenway biotech again

Review of azomite order

Product seems to be improving soil quality..The order was sent promptly.

Awesome!

Awesome! Can't wait to use it!

Best transaction and fast shipping

Awesome fertilizer source to get what you need for the garden

Micronized Amzomite powder

Aloha! Wonderful/efficient/cost effective/prompt....Need I say more?
.....Many thanx! Keoni

Easy. Simple. Awesome.

The title says it all.

stop bugging me

stop pestering me

Thank you!

It help my fruit grow and made my tree healthy.

Organic Azomite Powder Fertilizer 0-0-0.2 (Micronized)

Azomite 0-0-0.2 Micronized.Seventy trace minerals from a single ancient volcano.

Right-sized for the job.

One mineral.Six different jobs.

Tomatoes & Peppers

Vegetables & Flowers

Trees & Orchards

Lawn & Turf

Greenhouse & Potting Mix

Animal Feed Supplement

A single mineral.A complete trace profile.

Trace & ultra-trace elements in one product.

Geological concentration, not engineered blend.

Listed for certified organic production.

Micronized for surface area.

Effectively pH-neutral at typical rates.

Independently lab tested for heavy metals.

Why trace minerals matter.

Pick your use.Get your rate.

Home Garden, Raised Beds & Established Plantings

Field Crops, Pasture & Commercial Production

Trees, Orchards, Citrus & Vines

Lawn, Turf & Sports Fields

Containers, Houseplants & Greenhouse Media

Broadcast.Incorporate.Water in.

Calculate & weigh

Broadcast evenly

Incorporate & water

NOT a hydroponic reservoir nutrient

Six soil-building inputs.Different jobs.

Is this the rightamendment for you?

Best Choice For

Consider Another Product If

Azomite supplies the trace minerals.These complete the program.

Kelp Meal 2-0-4

Bone Meal 3-15-0

Blood Meal 13-0-0

Gypsum (Calcium Sulfate)

Read this beforeyou broadcast.

Common questions.Honest answers.

Lab-tested.OMRI Listed.

Pick your bag. We'll ship it.

About

Explore

Join Our Newsletter!

Currency