What type of soil is ideal for most gardens?

The type of soil ideal for most gardens is loam.

Loam is a balanced soil made primarily from sand, silt, and a smaller proportion of clay. Its mix gives gardeners a useful combination of drainage, moisture retention, air circulation, and nutrient storage. That balance makes loam suitable for a wide range of vegetables, flowers, herbs, and landscape plants.

A commonly cited approximate composition is 40% sand, 40% silt, and 20% clay by weight, although the proportions can vary. Soil scientists classify loam more precisely using texture, while gardeners often use the word more broadly for fertile soil containing abundant organic matter or humus.

The alternatives in the quiz each have limitations when dominant. Sand drains quickly and may lose nutrients; clay holds water and nutrients but can become compacted; and silt can pack tightly and erode easily. Even good loam benefits from compost and careful cultivation. Compaction, depleted organic matter, or poor structure can make a soil that is technically loam less productive.