The serendipitous discovery of two three-gallon margarine containers behind a dodgy local bakery has led to the yuppification of our self-watering container (SWC) garden. We posted earlier on how to make these handy containers, which have a reservoir of water at the bottom that keeps the soil at a uniform moisture level. We also made a video about them that we’re amused to report has been “favorited” on Youtube by pot growers.
You fill SWCs up via a pipe and they can go at least a week between waterings. It is, in our opinion, the only way to grow water-needy vegetables reliably in a container. We have used them to successfully grow eggplants, tomatoes, collard greens and blueberries (note to the DEA: no cash crops at the Homegrown Revolution compound!). With our backyard looking fairly ugly this summer we’ve backpedaled on our earlier strident post about how we don’t care if our patio looks like a methamphetamine lab, and have dressed up one of our SWCs.
Here’s how we did it:
First we stuck our three gallon self watering container inside of a large pot we had sitting around.
Next we filled the SWC with potting soil (note: you must use potting soil in a SWC). We filled the void between the SWC and the pot with rocks.
We used a plastic garbage bag as a mulch layer to help hold in the water.
A bag full of small river rocks provides an attractive cover to hide the plastic. Slice a hole in the plastic mulch layer and the pot is ready for planting.