---
product_id: 46146202
title: "Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon"
brand: "humboldts secret"
price: "€ 255.07"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/46146202-humboldts-secret-flower-stacker-0-7-5-bloom-booster-vitamin
store_origin: NL
region: Netherlands
---

# Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon

**Brand:** humboldts secret
**Price:** € 255.07
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon by humboldts secret
- **How much does it cost?** € 255.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/46146202-humboldts-secret-flower-stacker-0-7-5-bloom-booster-vitamin)

## Best For

- humboldts secret enthusiasts

## Why This Product

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

## Description

Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon

## Features

- Make sure this fits by entering your model number.
- INCREASE YIELDS BY UP TO 30%: Flower Stacker is a flowering additive designed to help your plants natural ability to increase yield and flower density. It’s an ideal nutrient solution for potting soil for indoor plants and outdoor plants.
- PREMIUM INGREDIENTS: Our Humboldts Secret Flower Stacker is made with quality ingredients to ensure the development of your flowers. Perfectly suited for potting soil for indoor plants!
- CONTAINS VITAMIN B1: Vitamin B1 has been touted as a cure-all for transplant shock. Labels typically claim that B1 supports conditions for better plant establishment and growth in a wide range of plants.
- HIGH AMOUNTS OF PHOSPHORUS AND POTASSIUM: Application of phosphorus and potassium during the flower development phase improves soil/foliar nutrient conditions for better crop yields.
- ADDED FLOWERING AGENT TO YOUR REGIME: Flowering boosters are particularly important in hydroponic and agricultural industries. Thousands of growers use Flower Stacker as an additional flowering agent to maximize their yields by harnessing the power of our clean-running formula.

## Images

![Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon - Image 1](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/61JUsK+UaDL.jpg)
![Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon - Image 2](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/714HAnk+aAL.jpg)
![Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon - Image 3](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/71O3Pfkb2rL.jpg)
![Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon - Image 4](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/71UQtk3X7wL.jpg)
![Humboldts Secret Flower Stacker | 0-7-5 Bloom Booster with Vitamin B1 | High Phosphorus Potassium Flowering Nutrients | Potting Soil Hydroponics Coco | Indoor & Outdoor Plants | 1 Gallon - Image 5](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/716RkkE5zkL.jpg)

## Available Options

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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/46146202-humboldts-secret-flower-stacker-0-7-5-bloom-booster-vitamin](https://www.desertcart.nl/products/46146202-humboldts-secret-flower-stacker-0-7-5-bloom-booster-vitamin)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-23*