Bricks, railway sleepers and rocks, these are too ordinary materials that we can find on a garden bed border easily. But why not boost your imagination? Use recycled glass bottles,shipping pallets, clam shells and even logs to change the boring borders.
Recycled railway sleepers stained for a raised garden bed. (I have been advised that it is best to put a sheet of plastic between the reclaimed sleeper and the soil/compost, because the tar in the sleeper is NOT good for your food plants.