Brunnings All Purpose NPK Fertiliser 3kg – Granular Plant Food (7.8:3.8:9.6)

Granular All-Purpose Plant Food in a 3kg Tub

Brunnings All Purpose NPK Fertiliser is a granular complex fertiliser for indoor and outdoor potted plants and most garden plants. This is the larger 3kg tub, which suits regular feeding across a bigger garden or through a full season. It combines slow-release and fast-acting nutrients, so plants get a quick response along with steady, extended feeding.

Nutrients & Analysis

It's a balanced NPK fertiliser with an analysis of around 7.8:3.8:9.6 (nitrogen, phosphorus, potassium) plus trace elements. Nitrogen drives leafy growth and green colour, phosphorus supports roots and flowering, and the higher potassium helps with flowering, fruiting and general plant hardiness. It's chloride free with little or no salt residue, and the non-acidifying formula won't alter the pH of your soil.

What It's For

Use it on flowers, vegetables, potted plants, shrubs and trees, both indoors and outdoors. It's free flowing and dust free, which makes it clean and easy to spread. Note that it isn't suitable for Australian native plants, which are sensitive to phosphorus and need a specialised low-phosphorus native fertiliser instead.

How to Use

Spread the granules evenly around the base of your plants, keeping them off stems and trunks, then water in well to start the nutrients releasing. For potted plants, sprinkle the recommended amount on the soil surface and water in. As a general guide from Brunnings, feed roughly every 6 to 8 weeks through the growing season, and always follow the pack rates, since over-application can harm plants.

Key Features & Benefits

• Larger 3kg tub for bigger gardens or a full season

• Balanced NPK around 7.8:3.8:9.6 plus trace elements

• Both slow-release and fast-acting for quick results and extended feeding

• Granular, free flowing and dust free for easy spreading

• Chloride free with little or no salt residue

• Non-acidifying, won't alter soil pH

• For indoor and outdoor pots and most garden plants (not natives)

Frequently Asked Questions

What is the NPK ratio?
It's a balanced analysis of around 7.8:3.8:9.6 (N:P:K), plus trace elements. The higher potassium supports flowering, fruiting and overall plant hardiness.

What can I use it on?
Flowers, vegetables, potted plants, shrubs and trees, indoors and outdoors. It's not suitable for Australian natives, which need a low-phosphorus native-specific fertiliser.

What are the three nutrients in NPK fertiliser?
Nitrogen (N) for leafy growth and colour, phosphorus (P) for roots and flowering, and potassium (K) for flowering, fruiting and hardiness. This one also includes trace elements.

How often should I apply it?
As a general guide, every 6 to 8 weeks during the growing season. Always follow the pack rates and avoid over-applying.

Where can I buy Brunnings All Purpose NPK Fertiliser 3kg in Australia?
It's available online from BPG Supplies, with free in-store pick-up from our Bonnyrigg location in South-West Sydney.