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What potting mix to buy?

I have been looking into gardening recently and just wondering what are the best potting mix brands?

My sister told me about doing a ratio between different ones, like 2 : 1, with 1 being the premium potting mix and 2 being general purpose one.

I understand the difference between premium and non-premium mixes, as well as the different types, potting vs speciality but not too sure on the brands and what different things they offer apart from prices.

Any help would be much appreciated 🙂

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Comments

EricL

Hello @GreenThumb12

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about soil brands.

It’s great that you’re exploring gardening—starting with the right potting mix really does set your plants up for success. Bunnings stocks several quality potting mix brands, with Osmocote by Scotts, Richgro, and Brunnings among the most popular. Osmocote Premium Potting Mix is a standout choice for many gardeners, thanks to its well-balanced formulation with added wetting agents and controlled-release fertiliser that feeds plants for up to six months.

It meets Australian standards for premium mixes, which is a good sign you're getting a nutrient-rich, free-draining base. Richgro and Brunnings both offer reliable general-purpose mixes and specialised products, such as those for natives, vegetables, or indoor plants, and are great for gardeners looking for a more affordable option.

Your sister’s method of mixing two parts general-purpose mix with one part premium mix is a smart and cost-effective way to improve soil quality, especially for less demanding plants. It gives you a looser, more versatile blend that still includes enough nutrients and structure. When blending mixes, use a large tub, wheelbarrow, or bucket to combine them thoroughly. You can lightly moisten the mix to help it settle better in pots and ensure even distribution of any added fertilisers.

Soil preparation always depends on the type of plant you're growing. For example, most flowering plants and leafy vegetables prefer rich, moist but free-draining soil, while succulents and Mediterranean herbs prefer gritty, well-aerated blends. Specialty mixes are available for these purposes, like Richgro’s Cacti & Succulent Potting Mix or their Black Marvel Rose & Flower Mix for flowering plants.

No matter the mix, ensure your container has proper drainage holes, and consider adding coarse material like scoria at the bottom of larger pots to help water flow freely. By focusing on good-quality brands and tailoring your mix to your plant’s needs, you’re building the foundation for a thriving garden.

Here are some handy guides that will help:

If you have any other questions we can help with, please let us know.

Eric

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