---
product_id: 4162620
title: "Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz"
brand: "jack's classic"
price: "€ 41.41"
currency: EUR
in_stock: true
reviews_count: 13
category: "Jack's Classic"
url: https://www.desertcart.fi/products/4162620-jacks-classic-10-30-20-blossom-booster-water-soluble-fertilizer
store_origin: FI
region: Finland
---

# 10-30-20 NPK for vibrant blooms Water-soluble powder for easy mixing Includes measuring spoon for precision Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz

**Brand:** jack's classic
**Price:** € 41.41
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock your garden’s full bloom potential—don’t let your flowers miss out!

## Quick Answers

- **What is this?** Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz by jack's classic
- **How much does it cost?** € 41.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/4162620-jacks-classic-10-30-20-blossom-booster-water-soluble-fertilizer)

## 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

- • **Precision Dosing:** Convenient measuring spoon ensures perfect nutrient balance every time.
- • **Complete Nutrition:** Micronutrients included for healthier, more resilient plants without extra supplements.
- • **Maximized Efficiency:** Water-soluble powder stretches further than liquids, saving you money and effort.
- • **Bloom Brilliance Boost:** High 10-30-20 nutrient ratio fuels brighter, more abundant flowers.
- • **Dual Feeding Flexibility:** Use as foliar spray or root feed—perfect for any plant care routine.

## Overview

Jack's Classic 10-30-20 Blossom Booster is an 8oz water-soluble fertilizer powder designed to dramatically increase the color and quantity of blooms in flowering plants. Featuring a potent 10-30-20 NPK formula enriched with essential micronutrients, it supports optimal plant health and vibrant flowering. Versatile for foliar or root feeding, it includes a measuring spoon for precise application, making it a must-have for gardeners seeking lush, prolific blooms all season long.

## Description

desertcart.com : Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz : Fertilizers : Patio, Lawn & Garden

Review: MAGIC POWDER!! - I have always killed every single plant I buy in the summer every year! I can’t keep anything alive let alone have flowers! Well everything changed when I bought Jacks Blossom Booster! This stuff has taken me from dead flowers to new blooms and beautiful flowers everywhere! The beautiful hanging petunias I buy every year and kill every year are now bursting with flowers after only one use!! It comes in a powder form with a little scooper. Just measure the amount of water needed, scoop the powder and add to the water. I like to let it sit and dissolve in the water for a few minutes and stir it around to make sure the product doesn’t get wasted. Tip: When watering with the fertilizer add little amount to the soil at a time or else all the fertilizer water will go through at once and get wasted! Little slow amounts to let the plant absorb it all the way is key! Overall I will definitely be buying more of Jacks fertilizer in the future to help my flowers and my garden bloom all summer long!
Review: It does exactly what they say! Boom! Flowers! - This fertilizer is like magic on flowers and vegetable gardens. I mixed some up and applied to everything growing in my gardens, both flowers and vegetables. I swear the next day it was like magic! My tomatoes had buds, my butternut squash plants looked happy and almost an inch taller. The flowers, wow. Everything perked up and within just a few days things were starting to bloom, I mean BLOOM! Every plant benefited greatly from this fertilizer. I just ordered more

## Features

- 10-30-20 Analysis - Great for producing brighter, more plentiful flowers in flowering plants.
- Many Ways to Feed - Blossom Booster 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 | B0006807PE |
| Best Sellers Rank | #12,251 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #490 in Garden Fertilizers |
| Brand | Jack's Classic |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,458) |
| Is Discontinued By Manufacturer | No |
| Item Form | Powder |
| Item Weight | 8 ounces |
| Item model number | TQ-PTR7-ZK7K |
| Liquid Volume | 8 Fluid Ounces |
| Manufacturer | JR Peters |
| Number of Items | 1 |
| Product Dimensions | 4.65 x 4.65 x 2.91 inches |
| Specific Uses For Product | Flowering plant care |
| UPC | 671341510086 |
| Unit Count | 8.0 Ounce |

## Product Details

- **Brand:** Jack's Classic
- **Item Form:** Powder
- **Item Weight:** 8 Ounces
- **Liquid Volume:** 8 Fluid Ounces
- **Specific Uses For Product:** Flowering plant care

## Images

![Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz - Image 1](https://m.media-amazon.com/images/I/61CcFd3DtsL.jpg)
![Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz - Image 2](https://m.media-amazon.com/images/I/81VcdVy5d4L.jpg)
![Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz - Image 3](https://m.media-amazon.com/images/I/81IQyldaBdL.jpg)
![Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz - Image 4](https://m.media-amazon.com/images/I/81ubvK8+tRL.jpg)
![Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz - Image 5](https://m.media-amazon.com/images/I/81o5en6pD5L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ MAGIC POWDER!!
*by L***N on June 11, 2024*

I have always killed every single plant I buy in the summer every year! I can’t keep anything alive let alone have flowers! Well everything changed when I bought Jacks Blossom Booster! This stuff has taken me from dead flowers to new blooms and beautiful flowers everywhere! The beautiful hanging petunias I buy every year and kill every year are now bursting with flowers after only one use!! It comes in a powder form with a little scooper. Just measure the amount of water needed, scoop the powder and add to the water. I like to let it sit and dissolve in the water for a few minutes and stir it around to make sure the product doesn’t get wasted. Tip: When watering with the fertilizer add little amount to the soil at a time or else all the fertilizer water will go through at once and get wasted! Little slow amounts to let the plant absorb it all the way is key! Overall I will definitely be buying more of Jacks fertilizer in the future to help my flowers and my garden bloom all summer long!

### ⭐⭐⭐⭐⭐ It does exactly what they say! Boom! Flowers!
*by C***N on June 10, 2025*

This fertilizer is like magic on flowers and vegetable gardens. I mixed some up and applied to everything growing in my gardens, both flowers and vegetables. I swear the next day it was like magic! My tomatoes had buds, my butternut squash plants looked happy and almost an inch taller. The flowers, wow. Everything perked up and within just a few days things were starting to bloom, I mean BLOOM! Every plant benefited greatly from this fertilizer. I just ordered more

### ⭐⭐⭐⭐⭐ Want more flowers?
*by D***E on June 10, 2025*

Use this every 7-10 days. It takes 1 tablespoon per gallon of water. Perfect to use on your annual flowers to increase blooms and size of buds. It also helps the flowers to last longer. Once you grow your flowers using Jack’s 20-20-20 then hit them with this blossom booster and you will love the results. Works for all indoor and outdoor flowering plants as well as fruits and vegetables. You and your plants are gonna love this stuff.

## Frequently Bought Together

- Jack's Classic 10-30-20 Blossom Booster Water-Soluble Fertilizer with Micronutrients for Increasing Color and Quantity of Blooms in Flowering Plants, 8oz
- Jack's Classic All Purpose 20-20-20 Water Soluble Plant Food (1.5lbs)
- Jack's Classic 12-15-30 Veggie Feed Water-Soluble Fertilizer with Micronutrients for Plant Growth and Abundant Fruit Set in Blooming Vegetable Plants, 1.5lbs

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-17*