Oregonism XL is a custom blend of six endo/ecto mycorrhizae species, two types of Trichoderma, and thirteen species of beneficial bacteria, as well as yucca, humic acid and soluble kelp. Oregonism XL helps to increase nutrient uptake, encourages vigorous root systems and helps plants resist stress. The blend increases root mass and size by colonizing the root system with symbiotic fungi and bacteria. The fungi extend their network into the surrounding rhizosphere, massively increasing the plants ability to uptake water and nutrients. These fungi and bacteria are specifically selected for tolerance to environmental extremes and compatibility with non-conifer plant species.