---
product_id: 738346031
title: "Starter Kit Pack – World's Best Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B – Golden Tree – Flower Stacker – Plant Enzymes – CalMag & Iron"
brand: "humboldts secret"
price: "€ 484.74"
currency: EUR
in_stock: true
category: "Humboldts Secret"
url: https://www.desertcart.sk/products/738346031-starter-kit-pack-worlds-best-indoor-and-outdoor-plant-fertilizer
store_origin: SK
region: Slovakia
---

# Works in all grow mediums Feeds 125-150 gallons nutrient solution Complete Base A & B + supplements Starter Kit Pack – World's Best Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B – Golden Tree – Flower Stacker – Plant Enzymes – CalMag & Iron

**Brand:** humboldts secret
**Price:** € 484.74
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock your plant’s full potential with the ultimate nutrient system!

## Quick Answers

- **What is this?** Starter Kit Pack – World's Best Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B – Golden Tree – Flower Stacker – Plant Enzymes – CalMag & Iron by humboldts secret
- **How much does it cost?** € 484.74 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/738346031-starter-kit-pack-worlds-best-indoor-and-outdoor-plant-fertilizer)

## 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

## Key Features

- • **Maximize Your Harvest:** Proven formula to grow the perfect crop with less effort and time
- • **Generous Yield Capacity:** Feeds up to 150 gallons of nutrient-rich solution for long-lasting growth
- • **Proudly Made in the USA:** Trusted American-made product ensuring consistent, high-quality results
- • **Universal Compatibility:** Optimized for gravel, sand, coco mix, and hydroponic systems alike
- • **Premium Quality Ingredients:** Crafted with the finest nutrients and supplements for superior plant health

## Overview

Humboldts Secret Starter Kit Pack is a comprehensive nutrient and fertilizer system designed for both indoor and outdoor plants. It includes Base A & B, Golden Tree, Flower Stacker, Plant Enzymes, and CalMag & Iron, providing all essential nutrients to support healthy growth across all growing mediums. Capable of preparing 125-150 gallons of nutrient solution, this USA-made kit ensures a premium, hassle-free growing experience for professional and hobbyist gardeners alike.

## Description

Humboldts Secret Starter Kit Pack – World's Best Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B – Golden Tree – Flower Stacker – Plant Enzymes – CalMag & Iron : desertcart.ae: Patio, Lawn & Garden

## Features

- GROW THE PERFECT CROP: With our nutrients you will be able to grow the perfect crop. Our starter kit is proven to make the perfect harvest and it will save you time and pain to get there.
- MAKES 125-150 GALLONS OF SOLUTION: Enjoy between 125 and 150 gallons of premium-quality nutrient solution to provide proper care and food for potting soil for indoor plants and outdoor plants. Base A & B (Quart Set), Flower Stacker (Quart), Calmag & Iron (Quart), Golden Tree (16 Ounce), Plant Enzymes (8 Ounce)
- COMPATIBLE IN ALL GROW MEDIUMS: Perfectly suited for use in all growing mediums. Whether it's gravel, sand, coco mix, or hydroponics, Humboldts Secret Starter Kit will help your plants!
- MADE WITH THE FINEST INGREDIENTS: All Humboldts Secret products are made with quality ingredients. Our Starter Kit gives you all the essential nutrients as well as some additional supplements to start your growing journey!
- MADE IN THE USA: Each one of our Humboldts Secret products is proudly made in the USA using quality ingredients to ensure an optimal indoor and outdoor plant fertilizer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Humboldts Secret |
| Item model number | 4336440967 |
| Product Dimensions | 22.86 x 20.32 x 20.32 cm; 453.59 g |
| ASIN | B06XH4533G |

## Product Details

- **Brand:** Humboldts Secret
- **Item form:** Liquid
- **Item weight:** 16 Ounces
- **Liquid volume:** 152 Fluid Ounces
- **Specific uses for product:** Hydroponics,Potting

## Images

![Starter Kit Pack – World's Best Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B – Golden Tree – Flower Stacker – Plant Enzymes – CalMag & Iron - Image 1](https://m.media-amazon.com/images/I/71Txpg8QvwL.jpg)

## Questions & Answers

**Q: Why is it not for sale in california ? 😭**
A: Because California claims everything causes cancer

**Q: Is it organic?**
A: No

**Q: Is this a petro chemical salt based solution**
A: No

**Q: Do you think that they’re adding the wrong amount of nutrients that’s why it’s killing some plants?**
A: depends on what medium you are using. Most people don't use washed coco. or use pre-amended soil and have no idea how much nutrients are already in it. or aren't watering enough or don't have ideal humidity so the plant drinks more and gets burned. if there isn't enough water it will become more concentrated. there are 100 reasons why growers make mistakes. Almost every single nutrient line could be amazing if used properly and at the right doses for what the plant genetics ask for. Most of the time it's grower's error. Better to go lighter on nutrients then too heavy. Plants will hurt less and bounce back faster with a deletion rather than abundance of nutrients.

## Frequently Bought Together

- Humboldts Secret Starter Kit Pack – World's Best Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B – Golden Tree – Flower Stacker – Plant Enzymes – CalMag & Iron
- Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 32 Ounces
- Humboldts Secret Tree Trunk - Silicate Additive - Advanced Nutrients - Helps Plants Flourish - Indoor Plant Food - Hydroponic Nutrients - Liquid Fertilizer (32 Ounce)

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**Shop now:** [https://www.desertcart.sk/products/738346031-starter-kit-pack-worlds-best-indoor-and-outdoor-plant-fertilizer](https://www.desertcart.sk/products/738346031-starter-kit-pack-worlds-best-indoor-and-outdoor-plant-fertilizer)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-24*