Yam daisies or murnong are really delicious bush tucker - a root vegetable that tastes like a pre-salted chip! The good news doesn't end there - they're also really good for you. But while once common around Canberra, they're pretty hard to find in the wild now.

But you can grow them in your own garden - specialist nurseries sell them and you can buy seeds online (albeit for a small fortune). They're actually not all that hard to grow, though I have learned the hard way that they do have some particular requirements.

Here are some lessons from my experience growing them for a couple of years.

When Europeans first arrived in the Canberra area, it was said that the open hillsides glowed yellow with yam daisy flowers - a delicious indigenous staple food. This little yellow flowered plant looks remarkably similar to a dandelion, but up close it is quite different.

Sadly today yam daisies are quite hard to find. Decades of sheep grazing has almost eradicated this plant from its former habitats. The yellow flowers you see around the suburbs, and increasingly in our national parks, are usually exotic dandelions and cat's ears.

So next time you're walking through the bush and you come across a yellow flower, how can you tell if it's really a yam daisy?

In this post I'll show you how.