---
product_id: 602151295
title: "Back to The Roots Organic Coir, 51 Quart Expanding Soil, Great for Seeds and Potting"
brand: "back to the roots"
price: "¥19370"
currency: JPY
in_stock: true
reviews_count: 7
category: "Back To The Roots"
url: https://www.desertcart.jp/products/602151295-back-to-the-roots-organic-coir-51-quart-expanding-soil
store_origin: JP
region: Japan
---

# Expands to 51qt potting soil Compact 10lb compressed block 100% organic & peat-free Back to The Roots Organic Coir, 51 Quart Expanding Soil, Great for Seeds and Potting

**Brand:** back to the roots
**Price:** ¥19370
**Availability:** ✅ In Stock

## Summary

> 🌿 Expand your garden, shrink your footprint!

## Quick Answers

- **What is this?** Back to The Roots Organic Coir, 51 Quart Expanding Soil, Great for Seeds and Potting by back to the roots
- **How much does it cost?** ¥19370 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/602151295-back-to-the-roots-organic-coir-51-quart-expanding-soil)

## Best For

- back to the roots enthusiasts

## Why This Product

- Trusted back to the roots brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Maximize Your Grow Space:** Expands from a compact 10lb block to over 2 cubic feet of nutrient-rich soil—perfect for any indoor or outdoor garden.
- • **Mess-Free & Easy Storage:** Compressed block design means no heavy, bulky bags—store and use with zero hassle.
- • **Grow One, Give One Impact:** Share your garden success and help donate STEM grow kits to classrooms—join a community that grows together.
- • **Sustainably Superior Soil:** OMRI-listed, peat-free, and 100% organic coconut coir ensures eco-friendly gardening without compromising quality.
- • **Balanced pH for All Plants:** Truly all-purpose soil with balanced pH, ideal for vegetables, flowers, herbs, and seed starting.

## Overview

Back to the Roots Organic Coco Coir Value Pack is a 10lb compressed coconut coir block that expands to over 2 cubic feet (51qt) of fluffy, nutrient-rich, peat-free, and OMRI-listed organic soil. Its balanced pH makes it perfect for all types of plants, from seeds to mature vegetables and flowers. Designed for easy storage and mess-free use, it promotes healthy root growth through superior water retention and aeration. Plus, with the Grow One, Give One program, your purchase supports STEM education in classrooms.

## Description

Back to the Roots 100% Organic Coconut Coir Premium Expanding Soil block expands into 2 cubic feet of rich, fluffy, and nutrient-rich soil when you add water. Perfect for indoor and outdoor use, it enhances water retention and aeration, promoting healthy root growth and robust plant development. Say goodbye to heavy, messy soil bags — our coir brick is convenient to store and easy to use. This natural and sustainable substrate is your key to thriving plants and more vibrant potted plants and gardens.

Review: THE BEST YOU WILL EVER BUY - Back to the roots is the best soul I have found yet and I have tried many. My plants never get overwatered in this sore for the drainage that it gives to my plants they never get overwatered again. I mix Burprer bone meal into it and it is also the best. I do a lot of cuttings off my coleus plants and never had roots grow so strong and beautifully. Between the perfect soil and the perfect fertilizer for my plants they are blooming so beautifully and fast. Never had this happen before my roots has never been so healthy my plants is never been so healthy it has been since I have switched to these two things. Very pleased I am and I am thinking about raising my flower bed with this soil but then they will never get overwatered either. You are not go wrong by using the soul or using the fertilizer I have said connect beautifully together. Wish I could give you a 10 star but there is only five but I still give you a 10.. Thank you for the best soil that makes my plants grow strong and beautiful.
Review: Great Ingredient for DIY Soil Mixture - I’m always in search of the perfect soil blend that supports seed germination, seedlings, mature plants, and indoor and outdoor vegetables. The Back to the Roots expanding soil has become a key ingredient in my DIY mix. The directions suggest adding 7-10 gallons of water, but I use about half that. I place the 12x12x4 brick in a 21-gallon bucket and follow this process: • Pour on 2 quarts of water • Let it expand • Scrape off the slightly moistened soil • Sift • Repeat until the entire brick is sifted This method avoids over-saturating the soil, separates out fibrous coconut husk, and leaves behind rich, airy, fluffy soil. The sifted fiber is debris-free and works beautifully as top dressing mulch. I’ve noticed slightly lower germination rates when using pure coco coir, and some seedlings tend to die off around the 3” mark. To improve results, I mix my sifted coir with vermiculite, perlite, and a bit of horse manure. One of the photos show the original brick material, sifted soil, and fibrous husk - all from the same process. The other photo shows the soil blend in use, in a batch prepared from an earlier coco brick using my sift/blend method. The video clip captures the sifted soil texture as it sprinkles from my hand into the bucket. I appreciate that this product is odor-free, 100% organic, and upcycled. My plants respond well to it, and it’s become a reliable part of my soil-building process.

## Features

- Includes 10lb block of Back to the Roots compressed Coconut Coir that expands to 51qt of potting soil. A balanced pH, which means it’s truly all-purpose. Use alone or as an amendment for anything in a pot or in the ground — vegetables, flowers, herbs, and even starting seeds.
- Expands to over 2 cubic feet
- Peat Free OMRI Listed, assuring organic production, handling, and processing
- 100% SATISFACTION GUARANTEE: If you are not satisfied or have any issues with this Organic Coconut Coir, just shoot us a note and our dedicacted customer support team will make sure we get you growing or send you a refund/replacement.
- GROWONEGIVEONE — Share a photo of your growing garden and we’ll donate a Grow Kit and STEM elementary school curriculum to a classroom of your choice.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRBDX9BK |
| Best Sellers Rank | #224 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #10 in Garden Soil |
| Customer Reviews | 4.4 4.4 out of 5 stars (8,046) |
| Item Weight | 10 pounds |
| Item model number | 47037 |
| Manufacturer | Back to the Roots |
| Product Dimensions | 12 x 12 x 4 inches |

## Product Details

- **Brand:** Back to the Roots
- **Global Trade Identification Number:** 00810667034948
- **Item Weight:** 10 Pounds
- **Style:** 51 Quart Expanding Soil
- **UPC:** 810667034948

## Images

![Back to The Roots Organic Coir, 51 Quart Expanding Soil, Great for Seeds and Potting - Image 1](https://m.media-amazon.com/images/I/91AAFl5ZynL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ THE BEST YOU WILL EVER BUY
*by A***E on January 6, 2026*

Back to the roots is the best soul I have found yet and I have tried many. My plants never get overwatered in this sore for the drainage that it gives to my plants they never get overwatered again. I mix Burprer bone meal into it and it is also the best. I do a lot of cuttings off my coleus plants and never had roots grow so strong and beautifully. Between the perfect soil and the perfect fertilizer for my plants they are blooming so beautifully and fast. Never had this happen before my roots has never been so healthy my plants is never been so healthy it has been since I have switched to these two things. Very pleased I am and I am thinking about raising my flower bed with this soil but then they will never get overwatered either. You are not go wrong by using the soul or using the fertilizer I have said connect beautifully together. Wish I could give you a 10 star but there is only five but I still give you a 10.. Thank you for the best soil that makes my plants grow strong and beautiful.

### ⭐⭐⭐⭐⭐ Great Ingredient for DIY Soil Mixture
*by J***. on December 5, 2025*

I’m always in search of the perfect soil blend that supports seed germination, seedlings, mature plants, and indoor and outdoor vegetables. The Back to the Roots expanding soil has become a key ingredient in my DIY mix. The directions suggest adding 7-10 gallons of water, but I use about half that. I place the 12x12x4 brick in a 21-gallon bucket and follow this process: • Pour on 2 quarts of water • Let it expand • Scrape off the slightly moistened soil • Sift • Repeat until the entire brick is sifted This method avoids over-saturating the soil, separates out fibrous coconut husk, and leaves behind rich, airy, fluffy soil. The sifted fiber is debris-free and works beautifully as top dressing mulch. I’ve noticed slightly lower germination rates when using pure coco coir, and some seedlings tend to die off around the 3” mark. To improve results, I mix my sifted coir with vermiculite, perlite, and a bit of horse manure. One of the photos show the original brick material, sifted soil, and fibrous husk - all from the same process. The other photo shows the soil blend in use, in a batch prepared from an earlier coco brick using my sift/blend method. The video clip captures the sifted soil texture as it sprinkles from my hand into the bucket. I appreciate that this product is odor-free, 100% organic, and upcycled. My plants respond well to it, and it’s become a reliable part of my soil-building process.

### ⭐⭐⭐⭐⭐ Earthworm 🪱 safe
*by S***N on October 25, 2025*

I bought this expanding coir soil specifically to use as bedding for my vermicomposting bin, and it turned out to be a perfect choice. Once hydrated, the texture becomes soft, fluffy, and holds moisture evenly—exactly what earthworms need to breathe, move, and thrive. There are no additives or chemical smells, which gave me peace of mind knowing my worms were in a safe, organic environment. What I liked most is how clean and easy it is compared to typical dirt or peat-based mixes. It expands way more than you expect, so one block goes a long way. The worms burrowed into it immediately and started breaking it down, and I noticed activity and casting production increased within just a few days. It also controls odor naturally and keeps good airflow in the bin. If you’re into vermicomposting or setting up a worm farm, this is one of the best bedding bases you can start with—light, airy, and holds the perfect amount of moisture without getting muddy or compacted. Highlights: Expands a lot with just water (cost-effective) Ideal moisture retention and airflow for worm health 100% organic and safe for composting No mess, no odor — very beginner-friendly

## Frequently Bought Together

- Back to the Roots Organic Coir, 51 Quart Expanding Soil, Great for Seeds and Potting
- Back to the Roots 100% Organic & Made in USA Worm Castings, All Natural Plant Fertilizer and Soil Enhancer, 5lb Value Pack
- FoxFarm Ocean Forest Potting Soil, 12qt – Light, Aerated Texture, Designed for All Container Plants – pH Adjusted for Optimal Nutrient Uptake, Effectively Retains Moisture (12 Quart)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-14*