---
product_id: 693820154
title: "GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (12 oz)"
brand: "gardenwise"
price: "€ 29.43"
currency: EUR
in_stock: true
reviews_count: 9
category: "Gardenwise"
url: https://www.desertcart.sk/products/693820154-gardenwise-slow-release-hydrangea-fertilizer-with-iron-and-sulfur-indoor
store_origin: SK
region: Slovakia
---

# Slow-release nutrients up to 3 months 8-4-8 NPK for vibrant blooms Iron & sulfur boost soil acidity GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (12 oz)

**Brand:** gardenwise
**Price:** € 29.43
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock the secret to show-stopping blooms—because your garden deserves to be the envy of every neighbor!

## Quick Answers

- **What is this?** GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (12 oz) by gardenwise
- **How much does it cost?** € 29.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/693820154-gardenwise-slow-release-hydrangea-fertilizer-with-iron-and-sulfur-indoor)

## Best For

- gardenwise enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Power:** Slow-release granules feed your plants steadily for up to 3 months, reducing reapplication and maximizing growth.
- • **Effortless Garden Glow-Up:** Just sprinkle and water—no green thumb required. Perfect for busy pros who want stunning results with minimal fuss.
- • **Tailored Acidic Nutrition:** Specially crafted for hydrangeas and acid-loving plants, ensuring lush foliage and robust health every season.
- • **Indoor & Outdoor Versatility:** Whether your plants thrive on the patio or inside your urban jungle, this fertilizer adapts to any environment.
- • **Bloom Brilliance, All Year Long:** Balanced 8-4-8 formula fuels vivid, eye-catching flowers that keep your garden Instagram-worthy.

## Overview

GARDENWISE Slow Release Hydrangea Fertilizer is a 12 oz granular formula designed to enhance soil acidity with iron and sulfur, delivering balanced 8-4-8 nutrients. Ideal for hydrangeas and other acid-loving plants, it supports vibrant blooms and lush foliage indoors and outdoors with a slow-release action lasting up to three months.

## Description

desertcart.com : GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (12 oz) : Patio, Lawn & Garden

Review: Hydrangea fertilizer - It worked great!
Review: Saved my plants - Saved my babies!! Moved to a new climates 2 yrs ago...this year, for the first time since potting over 15 yrs ago were dropping yellow leaves, looked horrible....since starting Gardenwise, my babies are lush and green with beautiful blooms.....thank you thank you...they were starts from my grandmother's original plants on the family farm ....

## Features

- 🌸 SPECTACULAR BLOOMS ALL YEAR: Promote vivid flowers with our balanced 8-4-8 formula, enriched with iron and sulfur for enhanced soil acidity and brighter, healthier blooms.
- 🌱 TAILORED FOR ACID-LOVING PLANTS: Ideal for hydrangeas, azaleas, camellias, and magnolias, providing essential nutrients for lush foliage and robust health.
- 🛠️ EFFORTLESS APPLICATION: Designed for gardeners of all levels—simply sprinkle, water, and watch your garden flourish with minimal effort.
- 💧 LONG-LASTING NOURISHMENT: Slow-release formula reduces application frequency while delivering steady nutrients for up to three months.
- 🏡 VERSATILE AND RELIABLE: Perfect for indoor and outdoor use, ensuring your garden thrives in any season and any climate.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DNV3GGTQ |
| Best Sellers Rank | #160 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #5 in Garden Fertilizers |
| Brand | GARDENWISE |
| Brand Name | GARDENWISE |
| Coverage | Depends on the condition and size of the plants. |
| Customer Reviews | 4.4 out of 5 stars 576 Reviews |
| Included Components | 1 Bag of Hydrangea Acidic Fertilizer |
| Item Form | Granules |
| Item Weight | 12 Ounces |
| Liquid Volume | 12 Fluid Ounces |
| Manufacturer | Summit Sales Company LLC |
| Mixing Ratio | 8-4-8 |
| Model Number | GRN-08-04-08-HDR |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | FERT-001 |
| Specific Uses For Product | Perfect for enhancing vibrant blooms, lush foliage, and healthy roots in hydrangeas, azaleas, camellias, and other acid-loving plants, both indoors and outdoors Specific Uses For Product Perfect for enhancing vibrant blooms, lush foliage, and healthy roots in hydrangeas, azaleas, camellias, and other acid-loving plants, both indoors and outdoors See more |
| Target Species | Ideal for hydrangeas, azaleas, camellias, magnolias, and other acid-loving plants. |
| UPC | 371127320297 |
| Unit Count | 12.0 Ounce |

## Product Details

- **Brand:** GARDENWISE
- **Item Form:** Granules
- **Item Weight:** 12 Ounces
- **Liquid Volume:** 12 Fluid Ounces

## Images

![GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (12 oz) - Image 1](https://m.media-amazon.com/images/I/711hNCoVumL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Hydrangea fertilizer
*by N***N on May 31, 2026*

It worked great!

### ⭐⭐⭐⭐⭐ Saved my plants
*by A***R on July 4, 2026*

Saved my babies!! Moved to a new climates 2 yrs ago...this year, for the first time since potting over 15 yrs ago were dropping yellow leaves, looked horrible....since starting Gardenwise, my babies are lush and green with beautiful blooms.....thank you thank you...they were starts from my grandmother's original plants on the family farm ....

### ⭐⭐⭐⭐⭐ Gertilizer
*by B***K on July 11, 2026*

Great product

## Frequently Bought Together

- GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (12 oz)
- Miracle-Gro Water Soluble All Purpose Plant Food, Plant Fertilizer for Indoor or Outdoor Plants, Roses, Flowers, Houseplants, Vegetables and Trees, 1.5 lb.
- Scotts Rose & Bloom Continuous Release Plant Food, 3 lb

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**Shop now:** [https://www.desertcart.sk/products/693820154-gardenwise-slow-release-hydrangea-fertilizer-with-iron-and-sulfur-indoor](https://www.desertcart.sk/products/693820154-gardenwise-slow-release-hydrangea-fertilizer-with-iron-and-sulfur-indoor)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-07-29*