Roots Organics Oregonism XL Soluble Mycorrhizal Inoculant -- 1 lb

Roots Organics Oregonism XL Super-Soluble Root Inoculant

Oregonism XL is a dry, super-soluble powder that seeds the root zone with living fungi and bacteria rather than feeding the plant directly. The fungal side is four endomycorrhizal species: Funneliformis mosseae, Rhizophagus aggregatum, Rhizophagus intraradices and Septoglomus deserticola. Once established, those fungi colonise the roots and extend fine hyphae far past the root hairs. That network widens the effective surface area for water and nutrient uptake. Seven bacteria ride along: six Bacillus strains, including subtilis, megaterium and amyloliquefaciens, plus Pseudomonas fluorescens. They work the rhizosphere, cycling nutrients and competing with problem organisms for root space. Humic acids round out the blend and give the microbes something to feed on. Because the powder dissolves rather than settling out, it works through a watering can, a drench or a hydro root zone. This jar holds 1 lb (454 g), which covers a good run of transplants in a tent or a small room. Roots that get colonised early carry the benefit through the whole cycle.

Applying a Mycorrhizal Inoculant at Transplant and Beyond

The best moment is transplant, when roots are exposed and the fungi can make direct contact. Sprinkle about 1/2 tsp straight onto the roots of seedlings and cuttings as they go into the new container. For containers already planted, scratch it into the top layer at 1/2 tsp per gallon of soil, scaling to 2 tsp for a 10-gallon pot. As a liquid, stir 5–10 mL per gallon of water, let it sit for up to a day, then water it in at the base. In hydroponics, make a concentrated batch in a gallon or two and drench each plant at the root zone. Outdoor beds take about 2 lb per 100 sq ft worked into the soil. Living cultures do not mix well with sterilants. Keep hydrogen peroxide, chlorine and fungicide drenches out of the same water, or the inoculant dies before it reaches the roots. Store the jar sealed, cool and dry so the spores stay viable. It is not OMRI listed, so certified-organic growers should check it against their own standards.

Key Features

• Four Endomycorrhizal Species: A mixed fungal blend gives roots several partners to colonise across different media and crops.
• Seven Beneficial Bacteria: Bacillus strains and Pseudomonas fluorescens work the rhizosphere alongside the fungi.
• Super-Soluble Powder: It dissolves into water for drenches and hydro use instead of sitting as grit in the line.
• Humic Acids Included: A humic fraction feeds soil biology and supports the microbes once they land in the root zone.
• Transplant or Drench: Dust it on bare roots, top-dress established pots, or water it in as a liquid.
• Soil, Coco and Hydro: One product covers potting soil, coco containers and hydroponic root zones.

Technical Specifications