---
product_id: 26946821
title: "7-3-3 Hydrangea Blue Water-Soluble Fertilizer, 1.5lb"
brand: "jack's classic"
price: "€ 92.10"
currency: EUR
in_stock: true
category: "Jack's Classic"
url: https://www.desertcart.fr/products/26946821-7-3-3-hydrangea-blue-water-soluble-fertilizer-1-5lb
store_origin: FR
region: France
---

# Micronutrients for lush, healthy leaves Water-soluble powder for max dilution 7-3-3 NPK for vibrant blue blooms 7-3-3 Hydrangea Blue Water-Soluble Fertilizer, 1.5lb

**Brand:** jack's classic
**Price:** € 92.10
**Availability:** ✅ In Stock

## Summary

> 🔵 Elevate your garden game—turn heads with every bloom!

## Quick Answers

- **What is this?** 7-3-3 Hydrangea Blue Water-Soluble Fertilizer, 1.5lb by jack's classic
- **How much does it cost?** € 92.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/26946821-7-3-3-hydrangea-blue-water-soluble-fertilizer-1-5lb)

## Best For

- jack's classic enthusiasts

## Why This Product

- Trusted jack's classic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Dosing:** Comes with a handy measuring spoon for perfect mixes every time.
- • **All-In-One Nutrition:** Includes essential micronutrients so your hydrangeas thrive without extra feeding.
- • **Precision Blue Boost:** Special 7-3-3 formula enhances and maintains stunning blue hydrangea flowers.
- • **Economical Concentrate:** Powdered form stretches further than liquids—mix once, feed gallons.
- • **Dual Feeding Flexibility:** Use as foliar spray or root drench to fit your plant care routine perfectly.

## Overview

Jack's Classic 7-3-3 Hydrangea Blue Fertilizer is a water-soluble powder designed to promote vibrant blue flowers and lush foliage in hydrangeas. Its balanced NPK ratio combined with essential micronutrients supports optimal plant health. Versatile for foliar or root feeding, it offers an economical and easy-to-use solution with included measuring spoon, perfect for acid-loving hydrangeas.

## Description

Heavy-duty metal construction. Built-in flow control. Slip-resistant rubberized grip, trigger and head. Easy, one finger trigger lock. Seven different spray patterns.

## Features

- 7-3-3 Analysis - Great for promoting lush leaves and enhance and maintain blue color in many pink and blue varieties of hydrangeas.
- Many Ways to Feed - Hydrangea Blue can be used as a foliar or root feeding product. Great for spraying directly onto leaves, roots, or when used in a continuous feed system.
- Water-Soluble Powder – Powdered concentrates go further than liquid fertilizers. Simply mix your measured powder with water and you are ready to feed with multiple gallons of liquid fertilizer!
- Included Measuring Spoon – All Jack’s Classic fertilizers come with a convenient spoon to create the right amount of liquid fertilizer for your plants.
- Micronutrients - Added micronutrients supply your plant with the nutrition it needs for optimal growth and health. Unlike other fertilizers, additional feeding is not required.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00KX028LQ |
| Application Method | foliar or root feeding |
| Best Sellers Rank | #101,994 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,927 in Garden Fertilizers |
| Brand Name | Jack's Classic |
| Coverage | Medium |
| Customer Reviews | 4.5 4.5 out of 5 stars (643) |
| Global Trade Identification Number | 00671341593249 |
| Included Components | 1 Container |
| Item Form | Powder |
| Item Highlight | Powdered, Targeted Micronutrient Package, Turns Hydrangeas Blue and Promotes Lush Leaves, for Acid-Loving Plants, Root Drench |
| Item Weight | 1.5 pounds |
| Liquid Volume | 1.5 liters |
| Manufacturer | JR Peters |
| Mixing Ratio | 7:3:3 |
| Model Number | 59324 |
| Number of Items | 1 |
| Part Number | 59324 |
| Specific Uses For Product | Hydrangea care, promoting blue flower growth |
| Target Species | Hydrangea |
| UPC | 671341593249 671341593256 |
| Unit Count | 24 Ounce |

## Product Details

- **Brand:** Jack's Classic
- **Item Form:** Powder
- **Item Weight:** 1.5 pounds
- **Liquid Volume:** 1.5 liters
- **Specific Uses For Product:** Hydrangea care, promoting blue flower growth

## Images

![7-3-3 Hydrangea Blue Water-Soluble Fertilizer, 1.5lb - Image 1](https://m.media-amazon.com/images/I/71eX7vl0rpL.jpg)

## Questions & Answers

**Q: Your descriuption is completely wrong for this product! It sounds like the description for a hose!**
A: Yes, this looks like the wrong info for this product. The product is great, but it is for Hydrangea flowers, this is not a garden tool.

**Q: Will this turn pink hydrangeas blue?**
A: I used it late winter early spring and every flower is now blue-purple.  I just noticed in mid July pink flowers are coming again so I will add some more

**Q: Is this good for bigleaf hydrangeas?**
A: I guess I don’t Know the difference. But I would expect it to be good for hydrangeas in general🤷🏼‍♀️
Sorry I can’t be of more help to a fellow gardner

**Q: Silly question, when it suggests 1 tablespoon per gallon of water or table per gallon of root ball?**
A: It means to use 1 tablespoon per gallon of water to use watering around the root ball area.

## Frequently Bought Together

- Jack's Classic 7-3-3 Hydrangea Blue Water-Soluble Fertilizer with Micronutrients to Enhance Blue Flowers, 1.5lbs
- GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (12 oz)
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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-09-17*