---
product_id: 48070147
title: "Houseplant Focus Concentrated Liquid Fertiliser, 300ml - Growth Technology Fertiliser for Indoor Plants - Professional Grade House Plant Food Concentrate with Kelp Seaweed Extract - Makes 60L"
brand: "growth technology"
price: "$39"
currency: NZD
in_stock: true
reviews_count: 11
category: "Growth Technology"
url: https://www.desertcart.nz/products/48070147-houseplant-focus-concentrated-liquid-fertiliser-300ml-growth-technology-fertiliser-indoor
store_origin: NZ
region: New Zealand
---

# feeds up to 60L water 300ml concentrated formula nutrient-rich kelp & acids blend Houseplant Focus Concentrated Liquid Fertiliser, 300ml - Growth Technology Fertiliser for Indoor Plants - Professional Grade House Plant Food Concentrate with Kelp Seaweed Extract - Makes 60L

**Brand:** growth technology
**Price:** $39
**Availability:** ✅ In Stock

## Summary

> 🌱 Elevate your indoor jungle with pro-grade plant fuel!

## Quick Answers

- **What is this?** Houseplant Focus Concentrated Liquid Fertiliser, 300ml - Growth Technology Fertiliser for Indoor Plants - Professional Grade House Plant Food Concentrate with Kelp Seaweed Extract - Makes 60L by growth technology
- **How much does it cost?** $39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/48070147-houseplant-focus-concentrated-liquid-fertiliser-300ml-growth-technology-fertiliser-indoor)

## Best For

- growth technology enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Weekly Care:** Simple 5ml per litre dosing keeps your plants thriving year-round
- • **Power-Packed Concentrate:** 300ml bottle fuels 60L of vibrant growth
- • **Trusted British Innovation:** Growth Technology’s 35+ years of horticultural expertise in every drop
- • **Advanced Nutrient Absorption:** Enriched with kelp, humic & fulvic acids for maximum uptake
- • **Scientifically Balanced Feed:** Expertly crafted with essential minerals for lush, healthy plants

## Overview

Houseplant Focus Fertiliser is a 300ml concentrated liquid formula designed to nourish a wide variety of indoor plants. It delivers a balanced blend of essential nutrients, including kelp seaweed extract, humic acid, and fulvic acid, to promote strong, healthy growth and vibrant flowering. Easy to use with a simple weekly dosing, this professional-grade fertiliser supports optimal nutrient absorption and is backed by over 35 years of British horticultural innovation.

## Description

Houseplant Focus Concentrated Liquid Fertiliser, 300ml - Growth Technology Fertiliser for Indoor Plants - Professional Grade House Plant Food Concentrate with Kelp Seaweed Extract - Makes 60L : desertcart.co.uk: Garden

Review: Great product - Great for my house plants as a new plant mum so way to use and has gave my plants so much colour and life .
Review: It does what it says it will do. - I have used this plant food for years, and I have never had any problems with it. Just follow the instructions as it recommends, you will always have perfect indoor plants.

## Features

- Causes serious eye irritation.
- BOOST INDOOR PLANT GROWTH – The Houseplant Focus is tailored for a wide range of indoor plants. Combining all essential nutrients, it provides a weekly balanced nourishment for plants. Grow stronger, healthier plants with this expertly blended indoor plant fertiliser
- BALANCED FEED - Sustain your indoor plants with the house plant food specifically formulated with all essential nutrients needed for healthy growth and optimal flowering. This fertiliser plant feed is crafted from the purest and most soluble mineral salts, ensuring thriving indoor plants
- QUALITY NUTRIENT-RICH BLEND – The house plant food fertiliser is enriched with kelp extracts, humic acid and fulvic acid, to support healthy houseplants. This balanced range of compounds improves nutrient absorption to support houseplant growth and development
- SIMPLE TO USE – Mix 5 ml of Houseplant Focus in 1 litre of water. Use with every other watering throughout the year to maintain healthy vigorous growth
- GROWTH TECHNOLOGY – We are a British family business, making advanced, specialist products for thriving houseplants. Since our founding in 1985, Growth Technology has been at the forefront of horticultural innovation, with a core focus on developing premium nutrient solutions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DCY65RI |
| Best Sellers Rank | 3,406 in Garden ( See Top 100 in Garden ) 18 in Flower Fertilisers |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,080) |
| Date First Available | 31 May 2013 |
| Item model number | GTHPF300 |
| Manufacturer | Growth Technology |
| Part number | GTHPF300 |
| Product Dimensions | 5 x 5 x 16 cm; 300 g |

## Product Details

- **Brand:** Growth Technology
- **Item form:** Liquid
- **Item weight:** 300 Grams
- **Liquid volume:** 300
- **Specific uses for product:** Potting

## Images

![Houseplant Focus Concentrated Liquid Fertiliser, 300ml - Growth Technology Fertiliser for Indoor Plants - Professional Grade House Plant Food Concentrate with Kelp Seaweed Extract - Makes 60L - Image 1](https://m.media-amazon.com/images/I/71Tl1WRI-OL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the NPK ratio for this product?**
A: This is its NPK 1.9 – 0.7 – 3.3

**Q: Can this fertiliser be used for all plants or it is for specific plants**
A: Yes, you can use this on all plants. I personally use for my pot plants in and outdoors and they are happy and healthy.

**Q: Is the packaging plastic or glass? TIA**
A: It is plastic.

**Q: suitable for eatable plants, fruits and vegetables?**
A: Hi yes it would be suitable, however for edible plants I would actually recommend Growth Technology Green Future Organic Garden Fertiliser which has a better balance of n=utrients for these type of plants. You can find it on Amazon using the code B07VSS8GZX to search

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by L***E on 4 August 2025*

Great for my house plants as a new plant mum so way to use and has gave my plants so much colour and life .

### ⭐⭐⭐⭐⭐ It does what it says it will do.
*by P***G on 13 August 2025*

I have used this plant food for years, and I have never had any problems with it. Just follow the instructions as it recommends, you will always have perfect indoor plants.

### ⭐⭐⭐⭐ Good plant food
*by S***E on 10 June 2024*

Much needed for my house plants as they don't get a lot of sunlight

## Frequently Bought Together

- Growth Technology Ltd GTHPF300 Houseplant Focus Balanced Liquid Concentrated Fertiliser 300ml
- Houseplant Focus Repotting Mix, 3L - Growth Technology Potting Soil for Indoor Plants - Peat-Free Compost Soil - Professional Grade House Plant Food, Brown
- Houseplant Potting Mix 10L

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-19*