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Nonorganic mulch, like river rocks, pebbles, or lava rock, technically lasts the longest. It helps with moisture retention and weed control but doesn’t break down and release nutrients like organic mulch. Wood mulch decomposes slowly, which can help it last longer than leaf or straw mulch, but it won’t provide as many nutrients as quickly as the faster decomposing types.

Food-grade diatomaceous earth is a natural product that comes from diatoms—fossilized aquatic organisms from tens of millions of years ago. Food-grade diatomaceous earth is considered "natural," while pool or filter-grade diatomaceous earth has been treated and transformed to have higher crystalline silica content.

A good driveway should have a solid base layer and a smooth surface layer of gravel. A base layer of larger gravel, around 1 to 2 inches, keeps the foundation stable and helps with drainage. For the top layer, smaller gravel, about 1/4 to 1/2 inches, compacts well and creates an even surface that’s easier to drive on. Using both ensures the driveway stays durable, drains properly, and doesn’t shift over time.

The least costly way to keep grass from growing is also the most labor-intensive: regular weeding. Pull out grass blades as you see them pop up through the soil in areas where they’re unwanted. Another cost-effective way to keep grass from growing is by spreading a thick layer of mulch on the area as this will suffocate the grass.