This would be a really cool way to plant a vegetable garden. You can separate the different vegetables, and it's easy to get to everything when it's time to harvest.
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How to make a circular paved area: Give your garden curves with a circle of rustic brick paving, complete with a delightful centre pattern pressed into the mortar
Flagstone and gravel Pathway - would work with our look in front or back
Herb garden planted checkerboard paving stones. Xeriscaping idea - extra heat from stones, little evaporation of water.