Sweet potato can survive not being watered in Western Australia

I just completed a job that has been left waiting for at least a month: repairing the retic for the sweet potato out the front.

I'm feeling very pleased with myself :) Sweat dripping down my face as I was working  lol... put a tap on the end of the dripperline for easy flushing next time (even a pregnant or new mother could do it ;))

The amazing thing is that the sweet potato has done so well - clearly the best source of carbohydrate for Western Australians. Hands down.

Winter 2012 sweet potato - only part of the harvest!

It does really need water to produce a good yield, but tubers will stay in the ground with no water for at least 6 weeks and leaves will not wilt. The ultimate test of resilience in my book since the last few weeks in Perth have seen some extreme heat - around 40 degree Celsius some days. And no rain.

Wicking Beds

I've got so many topics I want to blog about! Today I've chosen wicking beds, as I know that my good friend Theo is excited about them and it is very topical as we here in Western Australia are coming into summer.

We will want to design our spring & summer gardens to conserve our scheme (town) water. Did you know that around 50% of our tap water comes from ground water and that we have got forests and woodlands dying from drought? I only recently put two and two together and it has mostly cured me of my desire for long showers. I simply imagine the tree roots sucking on air above the clay bottom of their home aquifer.


The concept of wicking beds is to stop the water from running away and store it in such a way that plants can access it passively. This is in contrast to systems like hydroponics and aquaponics which rely on electricity to keep the water flowing past the plant roots.


There are as many ways to implement a wicking system as there are permaculture designers and practitioners! Speaking of designers, my favourites are Milkwood's Kirsten and Nick -you can see how they made their wicking bed here.


I've got one trial so far and it has worked extremely well. I'm happy to recommend it as possibly one of the easiest ways to grow food in pots.

I started with one of the food grade 5 litre oil containers below (thanks for these Andy!). I find the large size is best for plants to grow vigorously and that they are more productive this way.

I cut off the top to turn it into a pot - easy enough with an angle grinder but some people don't like to use the electricity!  I then cut slots in the base using the angle grinder to allow excess water to drain away, these are up about 5 centimetres from the ground. You can see the bottom has a slight ridge in the centre to allow them to be stacked like this. If you were using another container you can just as easily put the drainage in the side.


The image below is of the finished product with some mint I've successfully grown from seed! Mint seed is tiny, so I'm very happy with this result.

The plants have doubled in the last week or so and are loving the spring weather. They will do better in this pot than any other as they are thirsty!

I'm looking forward to mint with watermelon or apple and cos salad. Yum.!

Here's to simple gardening that is good for us and the earth.