Item Number: ISO775
Plant Success Soluble Mycorrhizae (4 oz)
Build a Microbial System In and On Your Plants' Roots
Beneficial mycorrhizal fungi work in partnership with plant roots, extending their reach into the soil to boost nutrient and water absorption. This water-soluble blend combines endo- and ectomycorrhizal fungi with beneficial bacteria and trichoderma for a broad-spectrum approach to plant health. By enhancing root efficiency, these microbes help plants grow stronger, resist stress, and thrive in challenging conditions such as drought or nutrient-poor soils.
Plant Success Organics Soluble™ contains mycorrhizae, bacteria, and trichoderma. It is well-suited to a variety of soils, climates, and plants. It is easily applied to existing landscapes and yards by mixing with water and using a hose-end sprayer or watering can. Also included is seaweed extract and humic acids to feed beneficial soil organisms. Plant Success Organics™ Soluble will create a thriving and diverse soil capable of supporting maximum root and plant growth.
The fine powder can be applied in multiple ways—drench seedlings and established plants, mix into potting soil, or apply through irrigation systems. This versatility makes it ideal for vegetables, fruits, herbs, flowers, and trees in both home gardens and small farms. Its balanced formulation supports soil biodiversity, enhances nutrient cycling, and reduces reliance on synthetic fertilizers.
Ideal for organic and sustainable growing systems, this product encourages a balanced soil ecosystem, fostering long-term productivity and resilience. From transplanting to ongoing plant care, Plant Success Soluble Mycorrhizae is a practical, science-based way to boost yields and soil health.
Explore additional soil-building products in our Soil Amendments Collection.
Contains: Endo- and ectomycorrhizal fungi, beneficial bacteria, trichoderma, seaweed extract, and humic acids
Application: Water drench, soil mixing, irrigation system, transplant dip
Treatment Capacity: Varies by plant size and application method
Packaging: 4 oz container
Shelf Life: 2 years


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Since 1976, we've served our customers at every stage of growing. Please contact us at any time. We are happy to support and assist you.
Shipping Information
Shipping Information
Cannot ship to the following states: FL, HI, IL, OK, WI
Shipping Weight: 0.3 lb
Dimensions: 8.0"L x 5.0"W x 1.5"H
Features
Features
Characteristics
Characteristics
Use Instructions
Use Instructions
Hose End Sprayer - Use 2 tsp/5 grams of product per 12 ft² of existing landscape. We recommend mixing 2 tsp/5 grams per 1000 ml and spraying at a rate of 8 oz/gal.
Potted or Established Plants - Apply at a rate of 1 tsp per gal of water.
Useful Information
Useful Information
Guarantee
Guarantee
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Put it on my seedlings and they perked up immediately!
Powdered form is perfect for inoculating transplants, as well as seeds when direct sowing.
I had a friend and great gardener recommend this product to me. I emediately saw a difference in my plants. They perked up and the leaves turned a much darker and richer green. No disease problems to speak of and the veggies are coming in nicely. He told me to use it as a foliar spray as well bucause it a ton of beneficial bacteria, seaweed and humic acids. So excited I found this product!