Great White® Premium Mycorrhizae 25lb Concentrate

Multi-Species Mycorrhizal Root Inoculant for Professional Growers, 25lb Concentrate

Roots can only pull in nutrients and water from the soil directly touching them, and that thin zone of contact limits how fast a plant can grow no matter how rich the surrounding medium is. Great White Premium Mycorrhizae introduces a broad consortium of beneficial fungi and microbes that colonize the root zone and extend its effective reach far beyond the roots themselves.

The 25lb concentrate size is built for professional and commercial-scale operations covering many containers or a large growing area from a single package.

Key Features & Benefits

• Multiple endo and ecto mycorrhizal fungi species — colonize roots and extend their effective surface area into surrounding growing medium.
• Beneficial bacteria strains — support a healthier root-zone microbial community alongside the fungal component.
• Trichoderma strains included — add another layer of root-zone competition against less beneficial organisms.
• 25lb concentrate — sized for professional and commercial-scale growing operations.

Who Should Use This

This fits commercial growers and large-scale cultivation operations that need a mycorrhizal inoculant in bulk quantity rather than a small retail-sized package.

About Plant Revolution

Plant Revolution is a family-owned company founded in 1999 that has focused on mycorrhizal products and beneficial soil microorganisms since, developing formulations aimed at home gardeners, landscapers, farmers, and hydroponic growers alike.

Frequently Asked Questions

How do I apply this mycorrhizae concentrate

Work the inoculant into the growing medium at transplant or early in the crop cycle so it makes direct contact with developing roots, following the application rate on the product label for your medium type and container size. Applying it later in the crop cycle is less effective since roots need contact with the fungi early to establish the symbiotic relationship.

When is the best time to apply a mycorrhizal inoculant

Apply at transplant or seed sowing, when new roots are actively forming and can make first contact with the fungal spores. Established root systems that never contacted mycorrhizae at the start are harder to colonize later.

What's the difference between endo and ecto mycorrhizal fungi

Endo mycorrhizal fungi penetrate root cells directly and suit most vegetables, herbs, and ornamentals, while ecto mycorrhizal fungi form a sheath around roots and suit certain trees and woody species. Including both species types broadens compatibility across different crops.

Is the 25lb size meant for home growers

It's sized for professional and commercial-scale operations working across many containers or a large growing area. Home growers with a handful of plants are usually better served by a smaller package size.