A liquid community of lactic acid bacteria, Bacillus spp., purple non-sulfur bacteria, and yeast, grown together through a patented fermentation process rather than cultivated as isolated strains. Above ground and below, these microbes help plants build resiliency, standing up to disease pressure and environmental stress while strengthening the soil that supports them.
ProBio Balance Plus comes to you as a mother culture, a super-concentrated starter you activate yourself. If you have ever kept a kombucha SCOBY or baked from a starter, the idea will be familiar. Combine one part ProBio Balance Plus with molasses and water, and in time you will have twenty parts of ready-to-use probiotic product. It's the most cost-effective way to bring these microbes to a large garden or farm. Download ProBio activation guide for full activation instructions.
Just as probiotics restore balance to the human gut, this inoculant restores balance to the living systems in your soil. Beneficial microbes make existing soil nutrients more bio-available, unlock bound phosphorus, and keep working long after application. Over time this helps build long-term soil quality for stronger and more extensive root systems, better aeration and tilth, faster breakdown of organic matter, and a soil-food web equipped to support healthy, resilient plants. It can also accelerate or kickstart a stalled compost pile.
Once activated, ProBio Balance Plus is diluted at 1:1000 (1 teaspoon per gallon) for most outdoor applications. That is a meaningful improvement on EM-1, the product it replaces: EM-1 required a heavier 1:100 dilution, cost more per treatment, and carried a shelf life of roughly 14 months from manufacture. ProBio Balance Plus holds for up to 5 years. In 2025 trials, the ProBio Balance Plus showed strong results for disease suppression and plant health. Also, the manufacturer is recommended by the late Michael Phillips in his book The Holistic Orchard.
Suitable for gardens, orchards, lawns, seed starting, and foliar spraying. Not recommended for direct application to open blooms.
Download ProBio usage guide for application guidance. Store at room temperature, out of direct sunlight. Do not freeze.
Prefer a ready-to-use option with no activation step? See our BioAg Microbial Inoculant Ready-to-Dilute.
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