---
product_id: 105598948
title: "Nutrients - Rock Solid (0-4-4) : Bloom Booster (2.5G)"
brand: "growth science"
price: "3539 kr"
currency: DKK
in_stock: true
reviews_count: 8
category: "Growth Science"
url: https://www.desertcart.dk/products/105598948-nutrients-rock-solid-0-4-4-bloom-booster-2-5g
store_origin: DK
region: Denmark
---

# Nutrients - Rock Solid (0-4-4) : Bloom Booster (2.5G)

**Brand:** growth science
**Price:** 3539 kr
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Nutrients - Rock Solid (0-4-4) : Bloom Booster (2.5G) by growth science
- **How much does it cost?** 3539 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/105598948-nutrients-rock-solid-0-4-4-bloom-booster-2-5g)

## Best For

- growth science enthusiasts

## Why This Product

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

## Description

desertcart.com : Growth Science Nutrients - Rock Solid (0-4-4) : Bloom Booster (2.5G) : Patio, Lawn & Garden

Review: Thanks for such a great fantastic product ! - I don't think it could have worked much better , it's only been a little over a week and definitely see a difference. I also purchased Solid Start. I've used both of these in different applications all over my farm . So it's hard to be specific but everything is growing , fruiting, blooming :)
Review: Great product - Bought this to attempt to force out some late season flowering in my tomatoes. It worked beyond my expectations. Will do business again.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HSWDW6J |
| Best Sellers Rank | #656,788 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #7,420 in Garden Fertilizers |
| Brand | Growth Science |
| Customer Reviews | 4.2 4.2 out of 5 stars (138) |
| Is Discontinued By Manufacturer | No |
| Item Form | Granules |
| Item Weight | 0.088 ounces |
| Item model number | GSCRSF |
| Liquid Volume | 2.5 Gallons |
| Manufacturer | Growth Science |
| Number of Items | 1 |
| Product Dimensions | 9 x 7 x 14.5 inches |
| Specific Uses For Product | Flowering Plants, Multiple Growing Environments |
| UPC | 855275005225 |

## Product Details

- **Brand:** Growth Science
- **Item Form:** Granules
- **Item Weight:** 2.5 Grams
- **Liquid Volume:** 2.5 Gallons
- **Specific Uses For Product:** Flowering Plants, Multiple Growing Environments

## Images

![Nutrients - Rock Solid (0-4-4) : Bloom Booster (2.5G) - Image 1](https://m.media-amazon.com/images/I/51JO-WBOTeL.jpg)

## Questions & Answers

**Q: How often do you feed rock solid to the plants? Every watering or once a week?**
A: once a week is plenty.

**Q: Is this comparable to rock resinator ? Thanks**
A: Most definitely! Just be sure to apply at the proper ratios form the feeding charts on our site!

**Q: What proportion of rock solid to be added in spray bottle?**
A: I use it as a supplement for soil feeding.  I actually haven't tried it as a foliar spray yet. I will have to give that a try.  I will say that I am a believer.  Density is increased.  No doubt

## Customer Reviews

### ⭐⭐⭐⭐⭐ Thanks for such a great fantastic product !
*by J***E on August 21, 2016*

I don't think it could have worked much better , it's only been a little over a week and definitely see a difference. I also purchased Solid Start. I've used both of these in different applications all over my farm . So it's hard to be specific but everything is growing , fruiting, blooming :)

### ⭐⭐⭐⭐⭐ Great product
*by B***1 on September 3, 2016*

Bought this to attempt to force out some late season flowering in my tomatoes. It worked beyond my expectations. Will do business again.

### ⭐⭐⭐⭐ buy great product
*by D***D on October 25, 2016*

I was skeptical at first but after reading all the reviews and then actually trying it I have been using over a week the first few days the flowers got very dense but the last four days have not seen any difference but it is a good product I'm happy it made them dense will possibly use again

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**Shop now:** [https://www.desertcart.dk/products/105598948-nutrients-rock-solid-0-4-4-bloom-booster-2-5g](https://www.desertcart.dk/products/105598948-nutrients-rock-solid-0-4-4-bloom-booster-2-5g)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-21*