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The best soil to put around a house foundation is fill dirt, which is soil that’s specifically designed for covering large areas and filling in holes. Don’t waste money regrading around your foundation with expensive topsoil. Use topsoil only for the last layer of soil, about 5 to 10 inches, so that when you do your foundation planting, your grass and plants will have the nutrients they need to grow.

Grass varieties such as tall fescue, zoysia, Bermuda, Bahia, and centipede grow best in sandy soil. These types of grass are drought resistant, so they help retain water and nutrients more easily. Consult a local lawn care company to determine the best type of grass to plant in your sandy lawn.

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.

You shouldn’t put topsoil over new grass seed. Even though it may seem like this would increase soil contact and help the seeds grow, adding more soil overtop of planted grass seed will only make it harder for water and oxygen to reach the grass seeds. If you want to protect the grass seeds, consider adding a thin layer of organic matter, such as straw or hay.