How Organic Matter Transforms Your Soil

Organic matter—decomposed plant and animal compounds—is the single most important tool for beautiful gardens and landscapes.

Benefits for Sandy Soils

Large sand particles drain fast, drying out and leaching nutrients. Organic matter acts like a sponge, holding moisture and nutrients longer, reducing erosion as it breaks down.

Benefits for Clay Soils

Tiny clay particles pack tightly, limiting air and drainage. Organic matter separates particles, creating air space, improving drainage and root growth, resisting compaction.

Universal Benefits

Boosts beneficial microbes (earthworms) that create more organic matter, release nutrients, and suppress diseases. Improves soil structure—less cracking in drought, less runoff when wet.

Sources of Organic Matter

• Compost
• Cover crops (green manure)
• Grass clippings
• Peat moss
• Sawdust
• Shredded leaves
• Well-rotted manure

Most are free or inexpensive.