Purchasing property and the importance of having active warrens on it.

It has taken us many years to find the right property for our next adventure, and one of the keys things we looked for every time was warrens … wombat and rabbit warrens.

Most people think that these animals are pests … yes and no. They are destructive to crops if you don’t protect your crops correctly, but they can tell you an amazing amount about your soil without having to do any serious soil testing up front. Here is an example wombat hole.

Large wombat hole displaying soil profile.
Large wombat hole displaying soil profile.

This hole clearly gives a snapshot of the soil profile in this area of scrub. The top 20 cm of soil, is a dark brown sandy topsoil. This is known as sandy loam. It is very easy to work with and provides for excellent drainage.

The next layer is a yellowish sandy substrate for about 60 cm. This substrate was laid down in this region around 20,000 years ago. Doing a little geological research, it was most likely blown onto the slopes when the lower area was infact an inland lake during the last ice age. This sandy substrate allows for easy drainage and will ensure that the soil is not water logged.

Finally, at the bottom of the wombat hole, there is evidence of pebbles of a gravel-like consistency. This gravel has a brownish-red colouration, indicative of high iron. There are also obvious chunks of quartz-like rock with inclusions of granite an glassy sandstone. This indicates that this level of the soil profile is close to bedrock, probably volcanic in nature as the quartz with inclusions can only occur at high temperature.

So, what does this tell us? This region can be used for shallow rooted trees, as evidenced by the dwarfed eucalyptus on the slopes behind. You can also put a structure here quite easily by cutting out and creating a solid packed base or by dropping piers directly to the bedrock. You can also improve the top soil using bio char before adding compost to make a very fertile garden bed for veggies. All this info from a simple wombat hole!

Lazy composting with potatoes

Every now and then, when we open up one of our compost piles after they’ve been sitting for several months doing their thing, we uncover a pile which hasn’t quite broken down everything the way we want or we find lots of plastic strips that were not removed from boxes. Sometimes the odd cake box wasn’t waxed like we thought but rather plastic coated and causes issues in the composting process.

While our wonderful composting organisms try their darnedest to break down the plastics, it’s evident that the plastic short circuited the decomposition on the underside of the deposit. When these frustrations arise, we rise to the challenge and create our spud-compost-mansion.

“What on earth are you on about?!?!” you say. Put simply, it is a chicken wire basket that is lined with mulch on the bottom, composted straw around the sides, half finished compost on the core and spuds all around!
Here is one we started today…

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Create a round wire basket and anchor it with stakes. We used chicken wire offcuts and bamboo stakes. The bamboo stakes are smooth and can be woven through the wire. Chicken inspection is optional.

The wire basket is held in place by bamboo stakes and since we were being lazy, we used our electric mulcher to break down some weeds into a fresh mulch bed.
I’d like to say that our logic is based on scientific fact… Rather it’s based on observation. We need to ensure that the too much moisture doesn’t leach out  from the pile, and anyone who’s mown a lawn before and left a pile of clippings on the garden can attest to the fact that, fresh lawn clippings create a dense also impenetrable layer. So this is our retention mulch.

The next layer is rotten straw. We place a good wad of it on top of the mulch in the wire basket, then start lining the sides of the basket with it. Here is a pic of just that.

Wire basket with mulch base and rotten straw lining.
Wire basket with mulch base and rotten straw lining.

Next, we shovel in a layer of partially finished compost and add our chitted potatoes around the straw edges and back fill it with more compost.
Voilla! You very own compost-potato-mansion.

Top view.
Top view.

Once the spuds have sprouted, be prepared to keep adding straw lined walls and compost backfill all the way to the top of the wire basket. We wished we had a photo of last years’ one. It was awesome!

This design tends to keep possums away from you spuds too, which is handy in an urban setting, and then when it’s time to harvest the potatoes, you don’t need to do anything special than pull apart the wire mesh, harvest and spread out the spent compost on your garden. Almost no work at all!

We have started setting up a few of these baskets all around our garden so that when we are weeding, we slowly fill the basket and it composts away. Then we can use it straight in the garden without having to use a wheel barrow to cart it around. Win-win!