Compost
Independently tested for quality and extraction performance.
An effective compost extract depends on the quality of the compost, especially the microbial biodiversity. Particle size and consistency can also affect the extraction process and both should be evaluated prior to use.
Grozome® Plant Probiotics
Bamboo-based small-batch compost with micronized biochar and a full spectrum of beneficial microbiology. Certified BioComplete™ by the Soil Food Web standard and OMRI-listed. Our recommended base compost for compost extracts.
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Using Grozome for Compost Extract
Grozome comes prescreened to 3/4-inch particle size and extraction-ready straight out of the bag. Just load it into your Hiwassee compost extractor's hopper and run your extraction cycle as usual.
Other Options
Other Compost Options
Grozome is our primary recommendation for compost extract. These additional composts are useful for building custom bacterial or fungal-dominant blends, or as an alternative when Grozome isn't available.
VermiCompost
Bulk granular vermicompost with high levels of diverse beneficial bacteria, available in multiple quantities and biochar blend options.
Products
Recommended Usage
- Base compost for compost extracts
- Blending with fungal-dominant composts for full-spectrum extracts
- Top dressing and soil amendment
Johnson-Su Compost
Premium Johnson-Su compost with high levels of beneficial fungi and fungal spores. Available in small and bulk quantities.
Products
Recommended Usage
- Targeted inoculation of soil and/or bulk compost at low quantities
- Boosting fungal content in bacterial-dominant extract blends
- Perennial crops and forest gardens that benefit from fungal networks
Manure Compost
Screened manure-based compost with good biodiversity for a bulk-produced product.
Products
Recommended Usage
- Top dressing for established plantings
- Blending with higher-biology composts to extend extract volume
- Bulk soil amendment where cost-per-yard matters
Comparison at a Glance