---
product_id: 114925558
title: "Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food with Both Endo & Ecto Mycorrhizae; 5oz. Trial Size Packet; The Ultimate Starter Plant Food (1)"
brand: "espoma"
price: "€ 15.64"
currency: EUR
in_stock: true
reviews_count: 8
category: "Espoma"
url: https://www.desertcart.pt/products/114925558-espoma-organic-bio-tone-starter-plus-4-3-3-natural
store_origin: PT
region: Portugal
---

# 4-3-3 NPK ratio for balanced growth Dual endo & ecto mycorrhizae for root vitality Made in USA with organic certification Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food with Both Endo & Ecto Mycorrhizae; 5oz. Trial Size Packet; The Ultimate Starter Plant Food (1)

**Brand:** espoma
**Price:** € 15.64
**Availability:** ✅ In Stock

## Summary

> 🌿 Grow smarter, not harder — the organic root revolution starts here!

## Quick Answers

- **What is this?** Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food with Both Endo & Ecto Mycorrhizae; 5oz. Trial Size Packet; The Ultimate Starter Plant Food (1) by espoma
- **How much does it cost?** € 15.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/114925558-espoma-organic-bio-tone-starter-plus-4-3-3-natural)

## Best For

- espoma enthusiasts

## Why This Product

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

## Key Features

- • **Organic & Safe:** Certified organic formula with no toxic ingredients—garden guilt-free.
- • **Trusted Legacy:** From Espoma, a leader in natural organics since 1929, trusted by gardeners nationwide.
- • **Easy Application:** Simply mix with soil at planting for instant root zone activation.
- • **Mycorrhizal Power Boost:** Enhanced with both endo and ecto mycorrhizae to supercharge nutrient uptake.
- • **Universal Plant Starter:** Perfect for all plants, ensuring strong root development from day one.

## Overview

Espoma Organic Bio-Tone Starter Plus is a 5oz trial-size, all-natural and organic plant food with a balanced 4-3-3 NPK ratio and 5% calcium. It uniquely combines both endo and ecto mycorrhizae to enhance root health and nutrient absorption, making it ideal for planting and transplanting all types of plants. Certified organic and made in the USA by Espoma, a trusted name in natural gardening since 1929.

## Description

Buy Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food with Both Endo & Ecto Mycorrhizae; 5oz. Trial Size Packet; The Ultimate Starter Plant Food (1): Fertilizers & Plant Food - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great for starting new plants - Love this product for all new planting
Review: If you have plants of any kind, you NEED this! - This stuff is an absolute necessity for any and all gardening! It builds strong, healthy roots in all of your plants. Inside, I use about a teaspoon (maybe a little more for bigger plants) in the new soil (right before you put the plant in), fill it the rest of the way and then water it in. The plants I repotted this year with Bio-Tone are so much stronger than last year and I have had absolutely no transplant shock on ANY of my babies! Outside, we used it on a lot of perennials because we’re redoing our landscaping and they are taking off like crazy! Seriously, this stuff is AMAZING! Plus, it’s certified organic. All of my fertilizers and soil amendments are Epsoma so I’m a big fan of theirs anyway but if I could only have one of their products, it would be this. Try it. You and your plants will be so glad you did!

## Features

- FOR EVERYTHING YOU PLANT: Use Bio-tone Starter Plus fertilizer when planting / transplanting all plants.
- CONTAINS: Bio-tone Starter Plus is a rich blend of the finest natural & organic ingredients enhanced with both endo & ecto mycorrhizae and our exclusive Bio-tone formula; 4-3-3 Fertilizer analysis with 5% calcium. Bio-tone Starter Plus is environmentally Safe - No sludges or toxic ingredients.
- WHEN / HOW TO USE: Use Bio-tone Starter Plus fertilizer when planting / transplanting. Mix thoroughly with soil used to backfill the planting hole so the Bio-tone Starter Plus is in the plant root zone. It is ready to use.
- FOR ORGANIC GARDENING: Bio-tone Starter Plus is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production
- MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005BV1O8K |
| Best Sellers Rank | #141,467 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,758 in Garden Fertilizers |
| Brand Name | Espoma |
| Coverage | Medium |
| Customer Reviews | 4.5 4.5 out of 5 stars (209) |
| Global Trade Identification Number | 00050197038027 |
| Included Components | Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food |
| Item Form | Granules |
| Item Type Name | Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food |
| Item Weight | 5 Ounces |
| Liquid Volume | 5 Fluid Ounces |
| Manufacturer | Espoma |
| Mixing Ratio | 4:3:3 |
| Model Number | BTSP5OZ |
| Specific Uses For Product | Plant Growth |
| Target Species | Everything you plant |
| UPC | 050197038027 |
| Unit Count | 5.0 Ounce |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Espoma
- **Item Form:** Granules
- **Item Weight:** 5 Ounces
- **Liquid Volume:** 5 Fluid Ounces
- **Specific Uses For Product:** Plant Growth

## Images

![Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food with Both Endo & Ecto Mycorrhizae; 5oz. Trial Size Packet; The Ultimate Starter Plant Food (1) - Image 1](https://m.media-amazon.com/images/I/71DYpQjH0DL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is it water soluble?**
A: Packaging recommends mixing the product with soil or top dressing.  Does not appear to be water soluble.

**Q: Is this for a single packet or for multiples?**
A: This is a single packet.

**Q: How many 6” indoor potted plants would this treat?**
A: Six tsp. per oz  would give you 30 tsp to the 5 oz package.  For a 6" pot I would use 1.5 to 2 tsp. of the Bio-tone Starter.

**Q: Is this for a single packet or for multiples?**
A: This is a single pack.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for starting new plants
*by M***I on October 18, 2025*

Love this product for all new planting

### ⭐⭐⭐⭐⭐ If you have plants of any kind, you NEED this!
*by T***K on April 23, 2021*

This stuff is an absolute necessity for any and all gardening! It builds strong, healthy roots in all of your plants. Inside, I use about a teaspoon (maybe a little more for bigger plants) in the new soil (right before you put the plant in), fill it the rest of the way and then water it in. The plants I repotted this year with Bio-Tone are so much stronger than last year and I have had absolutely no transplant shock on ANY of my babies! Outside, we used it on a lot of perennials because we’re redoing our landscaping and they are taking off like crazy! Seriously, this stuff is AMAZING! Plus, it’s certified organic. All of my fertilizers and soil amendments are Epsoma so I’m a big fan of theirs anyway but if I could only have one of their products, it would be this. Try it. You and your plants will be so glad you did!

### ⭐⭐⭐⭐⭐ Works well.
*by M***L on June 19, 2024*

Works well.

## Frequently Bought Together

- Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food with Both Endo & Ecto Mycorrhizae; 5oz. Trial Size Packet; The Ultimate Starter Plant Food (1)
- Organic Perlite for Plants, Soil Amendment for Enhanced Drainage and Growth, Ideal for Potting Mixes (1 Quart)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-23*