h a l f b a k e r y
This ain't rocket surgery.
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Because dying grass curbs aren't a good future design indicator
A spike, aproximately 20mm in diameter and 200mm in length. The spike is driven into the dry ground area. A fuse is lit and a small charge drives a lot of smaller tubes into the ground below the container tube in a cone shape.The charge also opens the tubes internal space to the air.
The smaller tubes
have a dew collecting pattern etched into their internal surface (thanks onymacris unguicularis)as well as holes to the surrounding soil.
Hopefully overnight water will collect, feed and make lush.