---
product_id: 376197284
title: "ferti-lome (10640) Root Stimulator & Plant Starter Solution 4-10-3 (16 oz)"
brand: "ferti-lome"
price: "€ 32.67"
currency: EUR
in_stock: true
reviews_count: 5
category: "Ferti Lome"
url: https://www.desertcart.it/products/376197284-ferti-lome-10640-root-stimulator-and-plant-starter-solution-4
store_origin: IT
region: Italy
---

# Indole-3-butyric acid root hormone 4-10-3 NPK formula Reduces transplant shock ferti-lome (10640) Root Stimulator & Plant Starter Solution 4-10-3 (16 oz)

**Brand:** ferti-lome
**Price:** € 32.67
**Availability:** ✅ In Stock

## Summary

> 🌿 Grow like a pro—root your success from the ground up!

## Quick Answers

- **What is this?** ferti-lome (10640) Root Stimulator & Plant Starter Solution 4-10-3 (16 oz) by ferti-lome
- **How much does it cost?** € 32.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/376197284-ferti-lome-10640-root-stimulator-and-plant-starter-solution-4)

## Best For

- ferti-lome enthusiasts

## Why This Product

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

## Key Features

- • **Boost Early Root Growth:** Stimulates rapid root formation for stronger plants
- • **Versatile Plant Support:** Perfect for vegetables, fruit trees, flowers, and shrubs
- • **Trusted by Professionals:** Proven success with 30+ tree transplants and counting
- • **Minimize Transplant Shock:** Helps plants adapt quickly to new environments
- • **Optimized 4-10-3 Fertilizer Blend:** Balanced nutrients to fuel vigorous growth

## Overview

Ferti-lome Root Stimulator & Plant Starter Solution (4-10-3) is a scientifically formulated plant hormone and fertilizer blend designed to accelerate early root development, reduce transplant shock, and promote vigorous growth across a wide range of plants including vegetables, fruit trees, and ornamentals. Featuring 4% nitrogen, 10% phosphate, and 3% potash with Indole-3-butyric acid as the active rooting hormone, this 16 oz solution is a must-have for gardeners aiming for thriving, resilient plants.

## Description

About Fertilome Root Stimulator & Plant Starter Solution 4-10-3: Use Root Stimulator anytime you are seeding or transplanting to stimulate early root formation and stronger root development, to help reduce transplant shock, and to promote more vigorous plant growth. About Fertilome: Made by VPG Inc., in Bonham, Texas, USA, we have existed to strengthen, empower and support locally owned merchants and specialize in giving your green thumb a hand.

Review: Been using this and it works wonders!
Review: Used this for a customer's arborvitae install and it was very great! Got the roots established early in the season and still thriving into the early summer. Only 1 out of 30 trees didn't make it. GREAT PRODUCT!

## Features

- Use the root stimulator when seeding or transplanting to stimulate early root formation development
- Perfect for transplants vegetables fruit trees berries flowers trees shrubs and ornamentals
- The active ingredient is Indole-3-butyric acid a plant hormone used to initiate root formation
- This 4-10-3 fertilizer contains 4% nitrogen 10% phosphate and 3% potash
- See product label for use instructions Application varies based on plant size and type

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00CGS826S |
| Customer Reviews | 4.4 4.4 out of 5 stars (361) |
| Date First Available | 9 February 2015 |
| Department | unisex-adult |
| Ingredients | B-1, Indole Butyric Acid, Wetting Agent |
| Item display height | 7.05 inches |
| Item display length | 2.1 inches |
| Item display weight | 1.27 Pounds |
| Item display width | 3.4 inches |
| Item model number | 1999 |
| Item volume | 473.12 Milliliters |
| Manufacturer | ferti-lome |
| Part number | 10640 |
| Product Dimensions | 27.94 x 22.86 x 17.78 cm; 589.67 g |

## Product Details

- **Brand:** ferti-lome
- **Item form:** Liquid
- **Item weight:** 590 g
- **Liquid volume:** 16 Fluid Ounces
- **Specific uses for product:** Trees, Shrubs, Roses, Annuals, Perennials

## Images

![ferti-lome (10640) Root Stimulator & Plant Starter Solution 4-10-3 (16 oz) - Image 1](https://m.media-amazon.com/images/I/61NReawIsiL.jpg)

## Questions & Answers

**Q: Can this be used for propagation?**
A: not sure. used on azalea that was moved to a new spot in garden. I use "root tone" for cuttings.

**Q: Has anyone tried this for orchid root stimulation?**
A: I used this product on over twenty different genera of orchids from Cattyla, oncidiums, brassovolas, stanhopea, gongoras, cymbidiums, and plerialthallus, only one genus I had problems with was Hilaria. Following the directions, I used 3 tablespoons/gallon.

**Q: Mixing ? How are you guys doing it ? If one quart needs 19 gallons of water ? How is everyone mixing ?**
A: I use it largely on my newly planted annuals and  perennials so I use the cap from the bottle and add one capful to a gallon jug (clean milk carton) of water. Used it for years and that measurement seems to work well

**Q: Anyone used on lawn? i know other rgs  products are out there for that use**
A: I use when replanting items. I don’t know how it does on yards

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***Y on 13 February 2026*

Been using this and it works wonders!

### ⭐⭐⭐⭐⭐ Review
*by B***E on 6 June 2025*

Used this for a customer's arborvitae install and it was very great! Got the roots established early in the season and still thriving into the early summer. Only 1 out of 30 trees didn't make it. GREAT PRODUCT!

### ⭐⭐⭐⭐⭐ Review
*by J***Y on 18 December 2025*

I have only just started a plant hobby, in the end of fall into winter. So, I wasn't sure that anyth was going to grow, and I bought several plants that had been abandoned at garden centers, sold as "distressed " Once I brought Fertilome into the process of dehydration for the bad soil, and starting the rejuvenation of the plant, it was a game changer! Even under my meager lighting, and some direct sun when it's out, they are really bouncing back like crazy! I'm happy and will buy again

## Frequently Bought Together

- Fertilome (10640) Root Stimulator & Plant Starter Solution 4-10-3 (16 oz)
- Fertilome (11207) Tree & Shrub Drench (1 gal)
- Miracle-Gro Tree and Shrub Plant Food Spikes, For Deciduous, Flowering and Evergreen Trees, 12 Spikes

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-28*