Skip to product information
1 of 1

Land O’ Giants

Biogrow Soluble Maxx

Biogrow Soluble Maxx

Regular price $51.00 USD
Regular price Sale price $51.00 USD
Sale Sold out

Fast and Free shipping in the US!

International shipping available: Contact us at for a custom quote.

Soluble MAXX was one of Joel Holland’s preferred sources of mycorrhizal fungi when growing his 2017 World Champion Pumpkin!

It is a suspendable powder mycorrhizal inoculum consisting of a combination of 9 species of endomycorrhizal fungi, 10 species of ectomycorrhizal fungi, and specially formulated amendments well-suited to a variety of soils, climates, and plants. About 95% of the world’s plant species form symbiotic relationships with at least one of these types of symbiotic soil fungus. These beneficial fungi greatly increase the effective rooting area of plants, thereby enhancing plant growth, vigor, and tolerance to environmental extremes. OMRI Listed for organic production


BioGrow Soluble MAXX is a concentrated, fine, suspendable material with a particle size of less than 300 microns (will pass a #50 screen).  This formula contains mycorrhizal propagules, which colonize roots and extend into the surrounding soil forming an essential link between plants and soil resources. Increasing the rooting area allows improved access to water and nutrients, promoting plant quality and crop performance.  Soluble MAXX is the ultimate product for re-establishing biological diversity in soil and ensuring plant performance.  Growers in North America and around the world use BioGrow Soluble Maxx to grow champion fruits and vegetables.


BioGrow Soluble Maxx contains 19 species of mycorrhizal fungi, 2 species of Trichoderma, and 12 species of beneficial bacteria.  Also includes Kelp, Humic Acids, and specially formulated amendments. OMRI Listed for organic production

9 species Endomycorrhizae

Glomus intraradices, Glomus mosseae, Glomus aggregatum, Glomus etunicatum, Glomus deserticola, Glomus clarum, Glomus monosporum, Paraglomus brasilianum, Gigaspora margarita.  92,000 Endomycorrhizal Propagules per lb.

10 species Ectomycorrhizae:

Rhizopogon villosulus, Rhizopogon luteolus, Rhizopogon amylopogon, Rhizopogon fulvigleba, Pisolithus tinctorius, Scleroderma cepa, Scleroderma citrinum, Suillus granulatus, Laccaria bicolor, Laccaria laccata.  1.2 billion Ectomycorrhizal Propagules per lb.

Bulk Pricing Available, contact us for a quote:

View full details