Harvest Gold Silica

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Harvest Gold Silica is purified silica sand with naturally occurring nutrients harvested from gold telluride quartz-rich vein deposits from deep within the earth.

Purified through a scientific process, this nutrient-rich compound has been shown to retain up to 40% more water, which provides the plant’s root system with extended contact with all nutrients and fertilizers — resulting in up to twice the yield versus untreated soils.*

Unlike other silicas, that for the most majority are made up of a simple soluble silicon dioxide, Harvest Gold Silica is ORGANIC. The grower, in turn, receives a silica product that is not only a bounty of nutrients but also rich in environmental benefits.
  • Company Name:
    Harvest Gold Silica
    Product/Service Website:
    Top Three Features:
    water retention, larger yield and bigger roots
    The problem and the promise?:
    better water retention larger yield and bigger roots
    Purchased From?:
    received as a tester
    Purchase Price:
    I received a bag of harvest gold silica as a tester. I grew four plants in total two plants were grown with it and two plant with out.
  • First Impressions:
    easy to use and mix in with my soil
    Actual Benefits Provided:
    I got the same yield from all the plants but the plants with the HSG added did have tougher stems so It did work as a silica additive
    Who should use this product/service?:
    people looking to get tougher stems
    User Friendly?:
    yes it was very easy to mix with my soil
    Who should NOT use this product/service?:
    if you are looking for something magical to increase yield
    Comparable Products/Services:
    most silica additives
    How long have you used this product/service?:
    3 months
  • Positives/Benefits:
    I got tougher stems on the plants that I used it with but thats about it
    no increased yield or water retention that i could tell of
    Able to overcome negatives?:
    the benefits don't out weight the cons
    Rate the Product Quality:
    • Medium Quality
    Would You Purchase This Product Again?:
    I might since it is easy to mix with my soil and I don't like using bottled nutrients but thats about it
    Would you recommend this product/service to another grower?:
    if they were looking for a one time additive to add silica to there soil then yes other then that no.
    Conclusion/Final Thoughts:
    this product would be good for some one who wants to add a silica additive to there soil since it will mix well in the soil but i would not use as a top dressing in a small pot it might clog up the top of the soil and make it hard to water but it would work great for outdoor growing

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