---
product_id: 588112525
title: "Humboldts Secret Everything Indoor Plant Food | 3-3-3 All Purpose Liquid Fertilizer with Norwegian Kelp | Supports Growth and Strong Roots | Nutrients for Houseplants & Indoor Plants | 8 Ounce"
brand: "humboldts secret"
price: "€ 32.53"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/588112525-humboldts-secret-everything-indoor-plant-food-3-3-3-all
store_origin: HR
region: Croatia
---

# fast-absorbing liquid concentrate 100% vegan & kelp-enriched 3-3-3 NPK balanced formula Humboldts Secret Everything Indoor Plant Food | 3-3-3 All Purpose Liquid Fertilizer with Norwegian Kelp | Supports Growth and Strong Roots | Nutrients for Houseplants & Indoor Plants | 8 Ounce

**Brand:** humboldts secret
**Price:** € 32.53
**Availability:** ✅ In Stock

## Summary

> 🌱 Feed your indoor jungle like a pro—because thriving plants are the new status symbol!

## Quick Answers

- **What is this?** Humboldts Secret Everything Indoor Plant Food | 3-3-3 All Purpose Liquid Fertilizer with Norwegian Kelp | Supports Growth and Strong Roots | Nutrients for Houseplants & Indoor Plants | 8 Ounce by humboldts secret
- **How much does it cost?** € 32.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/588112525-humboldts-secret-everything-indoor-plant-food-3-3-3-all)

## 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

- • **Effortless Application:** Just shake, dilute, and feed—no green thumb required to keep your plants Instagram-ready.
- • **Stress-Resistant Growth:** Enhances photosynthesis and abiotic stress tolerance for resilient, thriving plants.
- • **Balanced Nutrient Powerhouse:** Optimized 3-3-3 NPK ratio fuels lush growth and vibrant foliage.
- • **Plant-Friendly Vegan Formula:** Derived from natural kelp and mineral salts, safe for weekly feeding without harm.
- • **Universal Indoor Plant Booster:** Perfect for everything from succulents to tropical favorites—one bottle, endless green vibes.

## Overview

Humboldts SecretEverything Indoor Plant Food is a concentrated 8-ounce liquid fertilizer with a balanced 3-3-3 NPK formula enriched with kelp. Designed for all indoor potted plants, it promotes healthy leaf and root growth, enhances photosynthesis, and improves stress tolerance. Its vegan, water-soluble formula is safe for weekly use, making it an easy, effective solution for vibrant, thriving houseplants.

## Description

Humboldts Secret Everything Indoor Plant Food with Kelp | Liquid Concentrate Indoor Plant Fertilizer 3-3-3 All Purpose Plant Food for House Plants (8 Ounce)

## Features

- INSTANT LIQUID PLANT FERTILIZER - Specifically formulated, high quality water soluble nutrients. Our balanced ratio of Nitrogen, Phosphorus, and Potassium result in lush green, thriving live plants.
- RESULTS - Our complete liquid fertilizer for indoor plants promotes natural leaf and root growth, photosynthesis, flowers, enhances abiotic stress tolerance, and improves overall plant nutrition.
- EASY HOUSE PLANT FERTILIZER - 100% Vegan formula derived from Monopotassium Phosphate, Potassium Nitrate, and Kelp, our concentrated solution is safe enough to feed weekly. Shake, dilute, and apply.
- PLANT FOOD FOR EVERY HOUSEPLANT - Great on Aloe Vera, Succulent, Bamboo, Snake Plant, Money Tree, Bonsai, Ivy, Spider Plant, Crown of Thorns, Monstera, Pothos, ZZ Plant, Prayer Plant, Orchids.
- PLANT FERTILIZER FOR ALL INDOOR POTTED PLANTS - Use on Arrowhead, Jade Plant, Banana Tree, African Violet, Rubber Plant, Philodendron, Hoya, Palm Trees, Yucca, Poinsettia, Fiddle Leaf Fig Plant Food.

## Product Details

- **Brand:** Humboldts Secret
- **Item Weight:** 8 Ounces
- **Item Form:** Liquid
- **Liquid Volume:** 8 Fluid Ounces
- **Global Trade Identification Number:** 00850058984070

## Images

![Humboldts Secret Everything Indoor Plant Food | 3-3-3 All Purpose Liquid Fertilizer with Norwegian Kelp | Supports Growth and Strong Roots | Nutrients for Houseplants & Indoor Plants | 8 Ounce - Image 1](https://m.media-amazon.com/images/I/61Tz2JRuJBL.jpg)

## Available Options

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

## Frequently Bought Together

- Humboldts Secret Everything Indoor Plant Food with Kelp | Liquid Concentrate Indoor Plant Fertilizer 3-3-3 All Purpose Plant Food for House Plants (8 Ounce)
- Humboldts Secret Everything Outdoor Plant Food - 5-5-5 Liquid Fertilizer with Kelp - All Purpose Plant, Vegetable, Fruit Tree and Lawn Fertilizer (32 Ounce)
- Humboldts Secret Everything Growing Plant Food 20-20-20 Plant Fertilizer - Balanced Blend of Nitrogen, Phosphorus, Potassium, and Kelp - for Lawns, Gardens, Fruit Trees and House Plants (2 lb)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-18*