Michael –
Yes, I don’t see why you couldn’t mix these two mineral-based amendments together for a more complete product. However, I recommend not exceeding the recommended amount per square foot. The following is from the Azomite website:
Azomite is very different from the few glacial rock dust products on the market. AZOMITE is a mineralized, compacted volcanic ash in origin and is volcanic rather than glacial.
Happy gardening!
Hello –
The biggest difference in azomite and glacial rock dust is the micronutrients they contain and what they are derived from. Glacial Rock Dust is derived from glacial moraines in Canada and has a guaranteed analysis which contains Calcium, Magnesium, Cobalt, Iron, and Sodium. Azomite is a volcanic ash product that comes from Utah. It does not list specific micronutrients, nor does it have a guaranteed analysis beyond 0-0-0.2. However, it does contains 67 plant macro and micro nutrients. Overall, both are great for replenishing soil micronutrients and remineralizing soil. Glacial rock dust contains fewer micronutrients, but can help to improve the soil structure overall. Azomite contains more micronutrients but does not help improve soil structure. I would recommend mixing the two together for optimal results. Based upon the recommend application rates, I would think a 1:1 ratio would fit the average person’s needs.
Happy Planting!
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