Plant Nutrients Explained

Although SGA recommends primarily using organic material such as compost and manures to promote fertility, it's worth thinking in more detail about…

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Good Flies

Not all flies are bad!  We are used to being concerned when we see a blowfly, thinking it carries disease, or being annoyed by those pesky common…

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Tips for Starting an Organic Garden

Just beginning to garden on an empty piece of land?  Or making over an existing one? It can be confusing if you consult magazines or websites to know…

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To Chop’n’Drop or Not

If you haven’t heard about “chop’n’drop” you can probably work out roughly what it means i.e. when pruning shrubs, trees or pretty much any plant,…

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Seaweed Extracts for the Garden

The term “seaweeds” here to refers to macroalgae – the kind you see clinging to rocks at low tide, or in beautiful subtidal gardens (these can also…

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Roses, Salvias and Sustainability

In Glen Waverley, Melbourne, a committed gardener has created what many might view as a fairly traditional garden – white picket fence and roses –…

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Reducing Weed Spread

"Garden plants are the biggest source of weeds in this country totalling 70% of Australia’s combined agricultural, noxious and natural ecosystem…

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Why Sustainable Gardening?

Some people might ask why SGA talks about sustainable gardening rather than just gardening. The fact is that horticulture in the hands of home…

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Pesticides in Fruit and Vegetables

We are all aware that fruit and veggies produced commercially, unless they are certified organic, have been exposed to pesticides at some stage in…

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Locking up Carbon in Soil

Messages about addressing climate change mostly focus on decreasing carbon dioxide emissions by reducing use of electricity and gas and increasing…

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Is Biochar “Wonderstuff”?

Biochar has been hailed as a useful contributor to reducing the world’s increasing carbon emissions since it stores carbon in the soil1 . It has also…

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Neem

Neem products are sold for a variety of uses. In the garden, some people hail neem oil spray as a wonder pesticide.   It  has also found its way into…

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Why does SGA rate so few Weedicides as Low Environmental Impact?

Weeds seem to grow anywhere and everywhere. When they turn up in our gardens, competing for nutrients in soil and filling all available gaps, it is…

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Citrus Gall Wasp

  Citrus Gall Wasp Many of our more persistent garden pests are not native to Australia but citrus gall wasp is definitely an Aussie grown garden…

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Worm Wicking – One Year On

Last August, I wrote an article for SGA about my first attempt at a Sustainable Wicking Worm Bed.   For details see…

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Peach Leaf Curl

Peach leaf curl is a virulent and resistant fungal disease that appears on the leaves of fruit trees in early spring. As the fungus Taphrina…

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Bee Alert and Bee Very Alarmed!

Some good news from the European Union this week where a two year restriction on the use of neonicotinoid chemicals, the world’s most used…

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Powdery Mildew

A warm summer evening, a little bit of moisture, a shady spot in the garden – sounds like a recipe for powdery mildew!  Powdery Mildew is a warm…

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Whitefly

Though they look like tiny white flies or moths theses little sap suckers are a relative of aphids and mealy bugs.   You know Whitefly has moved into…

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Worms and Worm Farms

So, most of us have had a pet of some sort over the course of our lives, our pets bring us joy, love, laughter, and good times. But imagine owning…

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