---
product_id: 115991494
title: "Big Foot Mycorrhizae - Double Your Plant Size – Easy to Use – Made in USA – Treats 30 Plants (7,500 mycorrhizal Spores)"
brand: "big foot"
price: "A$34"
currency: AUD
in_stock: true
reviews_count: 8
category: "Big Foot"
url: https://www.desertcart.com.au/products/115991494-big-foot-mycorrhizae-double-your-plant-size-easy-to-use
store_origin: AU
region: Australia
---

# Long-lasting, lifetime plant benefits 7,500 mycorrhizal spores per pack Made in USA with 35+ years expertise Big Foot Mycorrhizae - Double Your Plant Size – Easy to Use – Made in USA – Treats 30 Plants (7,500 mycorrhizal Spores)

**Brand:** big foot
**Price:** A$34
**Availability:** ✅ In Stock

## Summary

> 🌿 Grow bigger, better, and bolder – your plants deserve the Big Foot advantage!

## Quick Answers

- **What is this?** Big Foot Mycorrhizae - Double Your Plant Size – Easy to Use – Made in USA – Treats 30 Plants (7,500 mycorrhizal Spores) by big foot
- **How much does it cost?** A$34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/115991494-big-foot-mycorrhizae-double-your-plant-size-easy-to-use)

## Best For

- big foot enthusiasts

## Why This Product

- Trusted big foot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lifetime Growth Boost:** One application delivers enduring benefits for your plants’ entire lifecycle.
- • **Double Your Plant Size:** Turbocharge growth with 7,500 potent spores boosting root and shoot development.
- • **Kid & Pet Safe Formula:** Eco-friendly and non-toxic, perfect for households with kids and pets.
- • **Scientist-Backed & USA Made:** Crafted by experts in Oregon, ensuring premium quality and trusted results.
- • **Flavor & Nutrition Amplified:** Enhance fruit flavor and vegetable size for a garden that truly stands out.

## Overview

Big Foot Mycorrhizae delivers 7,500 powerful mycorrhizal spores per pack, designed to double plant size and improve yields with a single, easy application. Made in the USA by seasoned experts, it offers long-lasting benefits that enhance root development, boost plant resilience, and improve produce quality—all while being safe for kids, pets, and the environment.

## Description

desertcart.com : Big Foot Mycorrhizae - Double Your Plant Size – Easy to Use – Made in USA – Treats 30 Plants (7,500 mycorrhizal Spores) : Patio, Lawn & Garden

Review: Best Stuff Ever! - I love this stuff! I have to get a bigger bag! It did wonders for everything I planted last season. I wish I could find it in a local store as I want a huge bag this year! My plants thrived with this. Germination was off the charts and growth was exponential. Everything was green and lush! I love this product!
Review: Great for Transplanting Indoor Houseplants - Purchased this on the advice of one of my plant groups. It seems to assist in the shock of transplanting and helps the roots take to the new soil.

## Features

- * LONG-LASTING BENEFITS: Once applied, it will last for the life of the plant, providing enduring benefits.
- * SAFE FOR USE AROUND PETS AND KIDS: It’s not only beneficial for your plants but also the health of our planet.
- * BOOST GROWTH AND YIELDS: Enhances plant growth and yields, especially under stressful conditions.
- * IMPROVES PRODUCE QUALITY: Makes fruits more flavorful and vegetables larger and more nutritious.
- * VERSATILE USE: Effective for lawns, gardens, and potted plants.
- * MADE IN THE USA: For over 35 years, the Amaranthus family has been at the forefront of innovating mycorrhizal products. Don’t be misled by companies that simply repackage others’ products. Our products are designed by actual scientists and proudly made in Grants Pass, Oregon.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #2,217 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #122 in Garden Fertilizers |
| Brand | Big Foot |
| Customer Reviews | 4.6 out of 5 stars 1,113 Reviews |
| Item Form | Granules |
| Item Weight | 4 Ounces |
| Manufacturer | The American Root Company |
| Number of Items | 1 |
| Specific Uses For Product | Plant Growth, Root Development, Seed Development, Soil Conditioning |

## Product Details

- **Brand:** Big Foot
- **Item Form:** Granules
- **Item Weight:** 4 Ounces
- **Manufacturer:** The American Root Company
- **Specific Uses For Product:** Plant Growth, Root Development, Seed Development, Soil Conditioning

## Images

![Big Foot Mycorrhizae - Double Your Plant Size – Easy to Use – Made in USA – Treats 30 Plants (7,500 mycorrhizal Spores) - Image 1](https://m.media-amazon.com/images/I/81x3PAik34L.jpg)

## Questions & Answers

**Q: Is Big Foot Organic?**
A: Yes. One of the few products with actual organic certification.

**Q: Can I apply with fertilizer?**
A: Yes! It’s important to avoid high levels of synthetic phosphorus when using mycorrhizae—specifically, levels of 80 parts per million or higher. Once the mycorrhizal relationship is established, you can use any type of fertilizer without concern.

**Q: Can I use this as a top dress?**
A: No, mycorrhizal products should not be used as a top dressing unless they are in a water-soluble powder form (like Big Foot Concentrate, which is water-soluble).

**Q: Do the benefits last the plant's lifetime?**
A: Absolutely! Established plants usually need just one to two applications for mycorrhizae to develop throughout their lifespan. However, if the plant dies or if you till the soil, those mycorrhizal connections will be lost.

**Q: What types of plants benefit most from it?**
A: Nearly 85 percent of the world’s species form relationships with mycorrhizae. Big Foot Products stands out as one of the few that also offers plant growth ingredients, ensuring support whether or not your plants form mycorrhizal connections.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Stuff Ever!
*by H***. on January 7, 2026*

I love this stuff! I have to get a bigger bag! It did wonders for everything I planted last season. I wish I could find it in a local store as I want a huge bag this year! My plants thrived with this. Germination was off the charts and growth was exponential. Everything was green and lush! I love this product!

### ⭐⭐⭐⭐⭐ Great for Transplanting Indoor Houseplants
*by C***S on January 5, 2026*

Purchased this on the advice of one of my plant groups. It seems to assist in the shock of transplanting and helps the roots take to the new soil.

### ⭐⭐⭐⭐⭐ Important for transplanting
*by J***. on February 23, 2026*

This is a great product. I'm happy with the price and quick delivery.

## Frequently Bought Together

- Big Foot Mycorrhizae - Double Your Plant Size – Easy to Use – Made in USA – Treats 30 Plants (7,500 mycorrhizal Spores)
- Big Foot Mycorrhizae Water Soluble Concentrate for New and EXISTING Plants - Includes Worm Castings, Kelp, Azomite, Biochar, Humic Acid - 4 Ounces

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-04*