Welcome to the Dr Greenthumbs Gardening Blog — your central hub for expert tips, guides, and inspiration. Explore our three main categories:

🌱 Living Soil & Organic Gardening
Discover soil health, composting, and sustainable growing techniques.

💧 Hydroponic Gardening
Learn nutrient management, lighting, and systems for high-yield indoor growing.

🌿 Indoor Plant Care
Practical advice for keeping houseplants thriving in every Aussie home.

Whether you’re starting your first garden bed or fine-tuning a hydroponic system, you’ll find all our blog articles collected here in one place.

Most Popular Gardening Articles

Beneficial Soil Bacteria and Mycorrhizae: A Vital Partnership

The health and fertility of soil is dependent on the presence of beneficial soil bacteria. These microorganisms work hand in hand with mycorrhizae - a type of fungus that forms a symbiotic relationship with plant roots - to create a thriving ecosystem. This article will explore the role of Trichoderma, Bacillus, and Beauveria as beneficial soil bacteria and how they complement mycorrhizae for optimal plant growth and health.

Read Blog

Creating the Perfect Aroid Potting Soil: A Comprehensive Guide for Healthy and Thriving Plants

Aroids are a diverse group of plants known for their stunning foliage and ease of care. However, one of the most important factors for their success is having the right potting soil. In this article, we will provide a comprehensive guide to creating the perfect Aroid potting soil that drains freely and won't rot your plants. We will focus on key ingredients, including coco coir chips, orchid pine bark, perlite, pumice, and organic potting soil, and explain their benefits and unique properties. We will also highlight promoted products that can help your Aroids thrive.

Read Blog

Chop and Drop Gardening: The Ultimate Guide to Sheet Composting

Composting is a natural process that transforms organic waste into rich, fertile soil. The chop and drop method is a specific type of composting that involves chopping up green waste and leaving it to compost in place. This method, also known as sheet composting, is a quick and easy way to improve the soil structure and fertility of your garden.

Read Blog

Rock Dust Revolution: The Benefits of Adding Rock Minerals to Your Soil

Rock dusts, also known as rock minerals or rock powders, are a type of soil amendment made from finely ground rocks. If you're looking to improve the health and fertility of your garden soil, adding rock dusts can be a valuable solution. But not just any rocks, these mineral-rich amendments can provide a range of benefits, from improving soil structure and balancing pH levels to providing essential minerals for healthy plant growth.

Read Blog

How to Choose Between Super Soil and Living Soil for Your Garden

When it comes to growing plants, soil quality is crucial. Two popular soil options in gardening are super soil and living soil. Both aim to promote healthy plant growth, but there are differences between the two. In this blog, we will explore the similarities and differences between super soil and living soil and help you determine which one is best for your garden.

Read Blog

Pumice vs Perlite: Which is the Best Choice for Your Living Soil?

Creating thriving living soil is vital for growing lush and healthy plants. To achieve this, selecting the right soil amendment is crucial. Pumice and perlite are two common options, but which one is the best fit for your garden? This article will explore the similarities and differences between pumice and perlite, helping you make an informed decision on which one to use in your living soil.

Read Blog

The Vital Role of Mycorrhizal Fungus in Nurturing Living Soil

For a garden to flourish, living soil is imperative - and at its core is mycorrhizal fungus. This symbiotic fungus plays a significant part in the well-being and growth of plants, which we'll delve into in this article, discussing its importance and providing practical tips for cultivating it in your own garden.

Read Blog

Maximizing Garden Growth with Companion Planting: An Organic Approach to Pest Control

Companion planting involves planting different types of plants together to provide mutual benefits. This can include providing shade for sun-sensitive plants, fixing nitrogen for plants that require it, and repelling

Read Blog

New Living Soil & Organic Gardening Blogs

Get Dirty & Learn!
How to Fix Poor Potting Soil (And Bring Old Potting Mix Back to Life)

How to Fix Poor Potting Soil (And Bring Old Potting Mix Back to Life)

Scott Cheney
If your plants are struggling despite regular watering and feeding, the problem is often hiding in plain sight: poor potting soil. Over time, potti...
How to Choose the Right NPK Fertiliser (A Simple Guide for Australian Gardens)

How to Choose the Right NPK Fertiliser (A Simple Guide for Australian Gardens)

Scott Cheney
Choosing the right fertiliser can feel confusing, especially when every bag or bottle has different numbers on the label. 10-10-10.20-5-10.3-1-6. W...
The Top 5 Best-Selling Dr Greenthumbs Products of 2025

The Top 5 Best-Selling Dr Greenthumbs Products of 2025

Scott Cheney
The organic gardening tools Aussie growers couldn’t get enough of this year. Every year, a handful of products rise above the rest — not because of...

New Hydroponic Gardening Blogs

Dive In & Discover!
Mastering EC Balance: A Beginner’s Guide for Hydroponic Growers in Australia

Mastering EC Balance: A Beginner’s Guide for Hydroponic Growers in Australia

Scott Cheney
Balancing electrical conductivity (EC) is the secret sauce behind lush, fast-growing hydroponic crops. Too high and you’ll scorch roots; too low an...
Hydroponic pH Control in Australia: Simple Steps to Rock-Solid Reservoirs

Hydroponic pH Control in Australia: Simple Steps to Rock-Solid Reservoirs

Scott Cheney
Quick answer: Keep your nutrient solution between pH 5.5 and 6.5. Test daily, adjust gradually, and buffer weekly for hands-off stability. Why pH s...
The Ultimate Australian Guide to Cal-Mag in Hydroponics (2025 Edition)

The Ultimate Australian Guide to Cal-Mag in Hydroponics (2025 Edition)

Scott Cheney
Aussie growers battle some of the world’s softest tap-water and coco coir that loves to steal cations. That combo makes calcium (Ca) and magnesium ...

New Indoor Plant Care Blogs

Keep It Green & Learn!
The Ultimate Aussie Guide to Indoor-Plant Fertiliser (2025)

The Ultimate Aussie Guide to Indoor-Plant Fertiliser (2025)

Scott Cheney
Stop the guess-work and watch your lounge-room jungle explode with colour and new leaves. This no-fluff guide gives you a clear feeding roadmap plu...
Best Peace Lily Potting Mix for Aussie Homes (DIY Recipe + One-Bag Shortcut)

Best Peace Lily Potting Mix for Aussie Homes (DIY Recipe + One-Bag Shortcut)

Scott Cheney
Peace lilies love that glossy, jungle vibe—but give them heavy, soggy soil and they’ll sulk faster than a kid in the shade house. Below you’ll find...
Anthurium Potting Mix Recipe for Australian Growers 🌿

Anthurium Potting Mix Recipe for Australian Growers 🌿

Scott Cheney
To create the perfect Anthurium Potting Soil follow this simple mix ratio: 4 parts bark : 2 parts perlite : 2 parts coco chips : 1 part pumice, pH ...