Down to Earth Soluble Root Zone | 4oz - OMRI Listed - (Case of 12)

Water-Soluble Mycorrhizal Inoculant for Drench and Fertigation Application, 4oz

A dry granular inoculant only works if it makes direct contact with roots at planting, which isn't always practical when a grower is retrofitting root-zone biology into an irrigation or fertigation program instead. Down To Earth Soluble Root Zone dissolves in water, delivering the same mycorrhizal fungi, Trichoderma, and beneficial bacteria found in the granular version through a drench or drip line instead of a planting-hole application.

The 4oz size, sold as a case of twelve, is convenient for nurseries, propagators, and home gardeners who want a supply of Soluble Root Zone for transplanting, propagation, or drench application through the season.

Key Features & Benefits

• Mycorrhizal fungi — colonize plant roots and form an extended network in surrounding soil, increasing the absorptive surface area.
• Trichoderma — a beneficial fungal genus contributing to root-zone health and rhizosphere biology in liquid form.
• Soluble formula — water-soluble for application as a soil drench or through irrigation systems.
• OMRI Listed — approved for certified organic production.

Who Should Use Down To Earth Soluble Root Zone

This fits nursery growers, propagators, home gardeners, and market farmers who apply inoculants through irrigation, as a soil drench, or in seedling and transplant programs where direct root contact through liquid delivery is preferred.

About Down To Earth Soluble Root Zone

Soluble Root Zone is the water-soluble counterpart to Down To Earth's granular biological inoculants, produced at the company's Eugene, Oregon facility as part of an OMRI Listed catalog built since 1977.

Frequently Asked Questions

What organisms are in Soluble Root Zone?

It contains the same mycorrhizal fungi, Trichoderma, and diverse bacterial species found in Down To Earth's granular inoculant. In this soluble form, those organisms colonize roots after being delivered through water rather than dry contact.

Is Down To Earth Soluble Root Zone OMRI Listed?

Yes, Soluble Root Zone is OMRI Listed, making it suitable for certified organic operations. That listing covers the full inoculant blend, including its mycorrhizal fungi, Trichoderma, and bacterial components.

How is Soluble Root Zone applied?

The soluble formula can be mixed into water and applied as a soil drench or through irrigation systems, or applied directly into the planting hole at transplanting. Follow the current label for rates and timing.

How does Soluble Root Zone differ from Granular Root Zone?

Soluble Root Zone is a water-soluble formula mixed into water for drench or irrigation application, suited to situations where liquid delivery is preferred, while Granular Root Zone is a dry product applied directly to soil at planting. Both contain mycorrhizal fungi, Trichoderma, and beneficial bacteria.

Can Soluble Root Zone be used at transplanting?

Yes, it's well suited for use at transplanting. Applying it as a soil drench around the root zone at that stage establishes beneficial colonization as early as possible in the plant's development.