Helpful Documents

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General Product

What is the makeup of MyHarvestGold Premium Soil Conditioner?

Naturally occurring mineral-rich quartz deposits, containing 85% silica and other beneficial elements including iron, calcium, magnesium, potash, sulfur, manganese, phosphate, sodium and zinc.

What makes MyHarvestGold Premium Soil Conditioner different than other silicas?

MyHarvestGold isn’t created in a lab or factory. The chemical-free additive is recycled and purified from 100-year-old gold mine tailings from the historic Congress Mine in Arizona. A unique angular shape was created differently than other silicas due to the crushing process of the mine. This unique shape of the particles regulates water and nutrient absorption.

How long will it take to notice changes?

As little as 10-14 days with plants in soil, and 3-4 weeks when rehabilitationg lawns/ lawn spots.

Do I need to change my watering regimen after I apply MHG?

You will need to be conscious, especially with potted plants, of over-watering, since MHG retains water for your plants. Be sure to check your soil for moistness before each watering session to get a feel for your new watering schedule.

How are the minerals in MHG made available to the plant?

MHG comes to you in a state of mineral decomposition, meaning that the Silica and it’s accompanying nutrients are bio-available to your plant as soon as you apply it.

Does MHG work better indoors or outdoors?

It works great with both!

Can I use MHG during composting

Yes! Add 1/10 MHG to your 9/10 compost mixture during the composting process. The minerals and silica will contribute greatly to the health and balance of the resulting soil.

What is the shelf-life of MHG?

MHG doesn’t expire!

Which Types of plants benefit most from MHG?

Any type of plant will benefit from MHG. Grass, Flowers, Houseplants, Outdoor plants, Trees, Shrubs, Vegetables, Fruits or Hemp

Can I eat fruits and vegetables grown with MHG?

Yes. You may even find that some are tastier!

Are there any health hazards I need to consider when working with MHG?

Take care not to inhale it


How much should I Use?

Please refer to our application rate pdf here.

Does it still work if I reuse my soil?

Yes, in fact we recommend recycling your soil!

How much do I use per one gallon of soil?

1-1.5 cups

How many times will I need to apply MHG during a single season?

1 application, mixed thoroughly into your soil

What is the best way to apply MHG to raised beds?

Applying a 2-4 inch layer to the bottom of a newly constructed raised bed will create a great barrier between your bed’s soil and the exterior environment, as well as the drainage zone. For your actual soil mixture, use the proportions recommended on the package and mix thoroughly throughout.

When is the best time to add MHG to my soil?

For potted plants and raised beds you will get the most benefit mixing MHG in with your soil mix before planting. Adding to existing soil with a 1” inch top soil and mix down into the bed or pot and top dress also provides great benefits during any growth stage. For lawns apply when grass in not dormant to boost growth. Order Harvest Gold Organic today online.

How do you apply this to lawns?

Aerate, apply to problem spots/areas, water thoroughly. For Lawns patches, top dressing when your grass is not dormant will encourage new growth

How to apply MHG with Trees?

For trees that are already planted, this can help your trees sustain and thrive through hot temperatures as the silica holds on to moisture long enough for roots to get a good drink.

How do I apply during the hot months for maximum absorption?

For trees,Take a spool of rope or string. Wrap the string around the width of the tree. Place one end of the string at the base of the tree and the other end perpendicular out as far as the string will reach and circle the tree measuring the circumference to apply MHG. You can till it down into the soil a few inches and also put down 2” of top dressing. Water at the base of the tree, the circular area around the tree top-dressed with MHG will create a container of water helping it to feed down into the soil around the trees roots.


What is Silica?

Watch this Video to Get an Informative Look.

How much will MHG affect the pH levels of my soil?

Even though MHG has a pH level of 8.4, it will not cause many major swing in overall pH. In terms of CCE (calcium carbonate equivalent), MHG has a low Effectiveness factor and %CCE. Therefore MHG should not significantly raise the soil pH.

Are there any synthetic chemicals or substances in MHG?


How does MHG hinder fungal infections?

The silica in MHG reduces fungal activity. Silica is incorporated into the xylem and phloem of the plant, thus strengthening the ‘main plumbing’ of the plant. In return the plant can tolerate more environmental stress.

How does MHG increase resilience to pests?

MHG increases nutrient uptake and provides silica and 9 other minerals that support healthy plant growth. Plants with MHG have strong stalks and leaves and are less susceptible to damage from pests. Soil is less likely to have fungal mats and fungal gnats

What are our NPK numbers?

PART 1: N (Nitrogen) .01 ; P (Phospherous) .1 ; K (Potassium) .03
PART 2: Our product is not technically a fertilizer, and shouldn’t really replace fertilizers rather than work along side them and enhance the affects. The active ingredient is Silica and other minerals favorable to plants, which produce outcomes similar to fertilizers (i.e. fast growth, more robust plants, etc…) so the NPK numbers being such low percentages are not a good gauge when deciding where this fits into your regimen.

How does Silica Conserve water?

Silica naturally attracts with water on a molecular level, but our silica does even more so because of it hexagional granular shape. The flat surfaces can retain water more efficiently.

Do you have an MSDS?



If MHG comes from old mining operations, how can I be sure that nothing harmful is still in the mixture?

All of the chemicals used in leeching are neutralized naturally over time, or through our processing plant.

Where is the factory?

The Congress Mine in Congress, AZ – about 1 1/2 hours northwest of Phoenix.


Does it work with worm castings?


Can it be used with CoCo?

Yes, MHG improves the performance of coco by regulating drainage and increasing nutrient absorption.

Do I need to change my fertilizer regimen after I apply MHG?

MHG will supply the plants with some micronutrients. Depending upon what you are growing and the base material you are using, fertilization may change.

Can I use MHG with hydroponics?

It depends on the hydroponics system. Some systems are water only where others use potting soil that is heavy in perlite.

Are there any plants that I can’t use MHG with?


Does it work on trees?


What type of grasses does it work on?

It works with all types of trees.

Does it work Better growing from seeds, or young plants & clones

Effective result happen with both!


How does MHG contribute to sustainable gardening/ farming practices?

MHG Conditions soil naturally, helping to improve drainage and nutrient absorption in compacted soil. This can mean the success for acres of farmland that are in need of remediation or have compaction issues. This is done by a 100% earth-friendly, process and certified for organic use.

Is MHG compliant to use for organic gardening/ farming?

MHG is 100% recycled and purified through an environmentally friendly process certified for organic farming.


How do I get rid of gnats?

Create a small mixture of one part household hydrogen peroxide (H202) with one part water and use a spray bottle to lightly apply the mixture to the top layer of the soil. Don’t use too much!

How do I get rid of fungus?

Call or visit your local nursery or gardening store and ask for their suggestion for an organic fungicide that is safe for your household.

What kind of soil should I use?

Call or visit your local nursery or gardening store and ask for their suggestion for a good organically produced soil.

– Fox Farms: Ocean Forest Potting Soil
– Mother-Earth Product: Terracraft Potting Soil
– Texas Pure Products

What kind of fertilizer should I use?

You should use a quality, organics fertilizer. Call your local nursery for suggestions.

How often should I water my lawn?

This varies greatly depensing on grass species and regional weather. Try some Home and Garden Forums or ask your local nursery for advice.

How often should I water my plants?

This varies from plant to plant. Look online for suggestions from multiple sources and try to pick the best practice for your schedule and plant type.

How do I combat whiteflies for indoor gardening/ greenhouses?

Use whitefly paper, or fly paper. You can hang it above your plants and avoid using messy/ dangerous chemicals indoors. Find it here.

What type of fertilizer should I use?

Call or visit your local nursery or gardening store and ask for their suggestion for a good organically produced fertilizer.
Alaska Fish Fertilizer – Many large scale organic green houses use fish ponds as water resevoir because of the nutrients that particular mini-biome provide plants. This fertilizer concentrate mimics that environment.