Oath Soil Life 5-Tree System

Oath Soil Life can be applied by anyone: including arborists, landscapers, homeowners, farmers, and foresters.

Oath Soil Life is a microbial consortium of naturally occurring, non-GMO, beneficial soil microbes. We provide these rhizobacterial and mycorrhizal microbes with an optional broad spectrum of organic minerals and humates.

Oath Soil Life is OMRI-listed for organic use and is non-GMO (neither genetically modified nor gene-edited).

Yes, we encourage you to review our efficacy data from decades of research trials and learn more about our R&D efforts to sequence the DNA of the soil microbiome.

Because Oath Soil Life is non-toxic, application requires no certifications or special personal protective equipment. The ideal application method depends on your crop type, soil condition, and growing scale (e.g., drench, inject, broadcast spray). As with the handling of any powder, you may wish to wear safety glasses and/or a mask. [Link to SDS (Safety Data Sheet)]

We recommend treating trees with a simple basal drench or soil injection, for professionals. Reapply Day 30 and Day 60. Repeat this three-month protocol annually.

Our Tree Systems are designed to deliver 10g of microbes per tree to any tree between 5-15 inches in diameter. When sizing your Tree Systems, we recommend counting smaller trees (<5 in.) as “½ trees” and larger trees as multiples: “2 trees” (16-25in DBH), “3 trees” (26-35 in DBH), etc.

Certified arborists have observed, after conditioning the soil with our microbes, new epicormic growth, shoot elongation, increase in canopy density, leaf size increase, increase in resin production, reduction in soil compaction, an increase in soil water-holding capacity. Most results are visible within 120 days.

We recommend broadcast spraying across lawn and garden soil, aiming downward to drive the mix past the surface down into the roots. Reapply monthly or bi-monthly throughout the growing season. Link to QSG Instruction Guide for more information on application instructions and sizing your treatment plot.

Yes, the probiotic benefits of Oath Soil Life compound with each application, especially as stressors in our environment like drought, extreme temperatures, storms and salinity persist.

Oath proudly partners with public and private gardens on soil health care. Please email Care@OathSoilLife.com to learn more about our work with the gardens and APGA partner programs. You can also watch our case study with the Tucson Botanical Gardens.

Yes, Oath Soil Life can be applied with biochar, and in fact, there are synergistic benefits for your soil and plant health to applying Oath Soil Life microbes and biochar together. However, like microbes, not all biochars are created equal or sustainably; it’s important to know the particle size, source, and sustainability of your supplier.

Compatible with: Biochar, compost, organic fertilizers, kelp-based amendments, humic acids, fulvic acids, and sea minerals. 

Do not apply alongside: Systemic chemical fungicides and pesticides, or synthetic fertilizers.

Oath Soil Life cannot be applied in freezing temperatures. If the soil experiences a hard freeze, the microbes need to be reapplied once thawed.

Soil is heterogeneous. This means soil varies inch by inch and ecosystem by ecosystem. The Oath Soil Life System microbes create a natural polymer which is hydrophilic. This sticky polymer holds loose soil together and opens up compacted soil pores building stable aggregates.