Down to Earth Granular Root Zone | 8oz - OMRI Listed - (Case of 12)

Granular Mycorrhizal and Trichoderma Inoculant for Transplants and Seedlings, 8oz

Roots alone can only reach as far as they physically grow, which limits how much water and nutrients — particularly phosphorus — a young plant can access before its root system matures. Down To Earth Granular Root Zone introduces mycorrhizal fungi, Trichoderma, and a diverse mix of beneficial bacteria directly at planting, so these organisms colonize roots and extend a biological network into the surrounding soil from the earliest stage of establishment.

The 8oz size, sold as a case of twelve, is convenient for nurseries, propagators, and home gardeners who want a supply of Granular Root Zone for transplanting, seed starting, or applying at planting throughout the season.

Key Features & Benefits

• Mycorrhizal fungi — colonize plant roots and extend into surrounding soil, increasing the effective absorptive surface area.
• Trichoderma — beneficial fungal organisms that support root health and rhizosphere activity.
• Diverse bacterial species — a mix of beneficial bacteria that work alongside fungi to support soil structure and root-zone biology.
• OMRI Listed — approved for certified organic production.

Who Should Use Down To Earth Granular Root Zone

This fits nursery growers, transplant producers, home gardeners, and market farmers who want to establish beneficial root-zone biology at planting, especially for transplants and seedlings where early root development matters most.

About Down To Earth Granular Root Zone

Granular Root Zone is one of the biological inoculants Down To Earth Distributors packages at its Eugene, Oregon facility, part of an OMRI Listed catalog the company has built since 1977.

Frequently Asked Questions

What organisms are in Granular Root Zone?

It contains mycorrhizal fungi, Trichoderma, and a diverse mix of beneficial bacterial species. Together, these organisms colonize plant roots and build activity throughout the surrounding rhizosphere.

Is Down To Earth Granular Root Zone OMRI Listed?

Yes, Granular Root Zone is OMRI Listed, so it fits certified organic growing programs. The listing covers the complete blend of mycorrhizal fungi, Trichoderma, and bacterial species in the product.

When should Granular Root Zone be applied?

It's typically applied at transplanting or seeding, placing the granular inoculant in direct contact with plant roots or seeds so the beneficial organisms can begin colonizing as quickly as possible. Follow the current label for rates and timing.

How do mycorrhizal fungi benefit plants?

Mycorrhizal fungi colonize plant roots and extend hyphae deep into surrounding soil, greatly expanding the absorptive surface area of the root system. This lets plants access more water and nutrients, particularly phosphorus, from a larger soil volume than roots alone can reach.

Can Granular Root Zone be used alongside synthetic fertilizers?

High concentrations of synthetic phosphorus fertilizers can suppress mycorrhizal colonization. Where establishing mycorrhizae is a priority, reduced or organic phosphorus inputs alongside the inoculant are generally recommended instead.