---
product_id: 650132758
title: "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"
brand: "humboldts secret"
price: "A$29"
currency: AUD
in_stock: true
reviews_count: 5
url: https://www.desertcart.com.au/products/650132758-humboldts-secret-starter-kit-pack-worlds-best-indoor-and-outdoor
store_origin: AU
region: Australia
---

# Versatile for indoor & outdoor plants Advanced nutrient system for lush growth Liquid formula ensures fast absorption 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

**Brand:** humboldts secret
**Price:** A$29
**Availability:** ✅ In Stock

## Summary

> 🌱 Unlock your plants’ full potential with the ultimate growth kit!

## Quick Answers

- **What is this?** 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 by humboldts secret
- **How much does it cost?** A$29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/650132758-humboldts-secret-starter-kit-pack-worlds-best-indoor-and-outdoor)

## 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

- • **Dual Environment Mastery:** Optimized for both indoor and outdoor plants, ensuring year-round flourishing
- • **Precision Liquid Formula:** Easy-to-use liquid form guarantees rapid nutrient uptake and visible results
- • **All-in-One Growth Powerhouse:** Combines Base A & B, Golden Tree, Flower Stacker, CalMag & Iron for unbeatable plant vitality
- • **Trusted by 1,100+ Garden Pros:** 4.6-star rating proves this kit is the secret weapon for serious growers
- • **Scientifically Balanced Nutrients:** Supports robust root development, vibrant foliage, and prolific flowering

## Overview

Humboldts Secret Starter Kit Pack is a premium liquid nutrient system designed for both indoor and outdoor plants. Featuring a comprehensive blend of Base A & B, Golden Tree, Flower Stacker, CalMag & Iron, it delivers balanced nutrition to promote vigorous growth, enhanced flowering, and strong roots. Trusted by over 1,100 customers with a 4.6-star rating, this medium-coverage kit is perfect for professional and hobbyist gardeners aiming for exceptional plant health.

## Description

Safety Warning Always wear gloves and protective clothing when handling. Keep out of reach of children and pets. Avoid contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water and seek medical advice. Do not ingest. Store in a cool, dry place away from heat sources and direct sunlight. Do not use near food or feed areas. Dispose of container in accordance with local regulations.

Review: Tree/Slow growing plants approved
Review: Good products and reasonable prices

## Features

- Harmful if swallowed.
- May cause allergy or asthma symptoms or breathing difficulties if inhaled.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06XH4533G |
| Brand | Humboldts Secret |
| Brand Name | Humboldts Secret |
| Coverage | Medium |
| Customer Reviews | 4.6 out of 5 stars 1,107 Reviews |
| Item Form | Liquid |
| Item Weight | 16 Ounces |
| Item form | Liquid |
| Item weight | 16 Ounces |
| Liquid Volume | 152 Fluid Ounces |
| Liquid volume | 152 Fluid Ounces |
| Manufacturer | Humboldts Secret |
| Model Number | 4336440967 |
| Specific Uses For Product | Plant Growth |
| Specific uses for product | Plant Growth |
| Target Species | Plants |
| UPC | 648260730512 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Humboldts Secret
- **Item form:** Liquid
- **Item weight:** 16 Ounces
- **Liquid volume:** 152 Fluid Ounces
- **Specific uses for product:** Plant Growth

## Images

![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 - 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tree/Slow growing plants approved
*by C***R on 19 October 2021*



### ⭐⭐⭐⭐⭐ Good products and reasonable prices
*by B***N on 2 July 2025*



### ⭐⭐⭐⭐⭐ Works Great!
*by R***. on 14 December 2025*



## 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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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-03*