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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

Listed for Use in Organic Agriculture by the Organic Materials Review InstituteApproved for Organic Agriculture by the California Department of Food and Agriculture
Quantity Discounts for Plant Success Soluble Mycorrhizae (4 oz)
Buy 5 for $26.09 each
Buy 10 for $24.64 each
$28.99
Discount applied. Offer ends soon.
Next-day shipping available

Check Your Zone Compatibility:

Shipping Information

Ships from Northern CA.

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

    Characteristics

    Organic Status: Certified Organic Product
    Organic Certifier: OMRI, CDFA

    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

    Guarantee

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    Customer Reviews

    Based on 3 reviews
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    J
    Jason
    Easy!

    Put it on my seedlings and they perked up immediately!

    E
    Eric
    Put a little on your plant's bum.

    Powdered form is perfect for inoculating transplants, as well as seeds when direct sowing.

    g
    gaiatree
    Good stuff.

    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!