leaf mold

a compost or layer of soil consisting chiefly of decayed vegetable matter, especially leaves.

Origin of leaf mold

First recorded in 1835–45

The soil best adapted for Begonias is turfy loam, leaf-mold, sand, and old well-rotted manure in equal parts.

Talks about Flowers. |M. D. Wellcome
It is a good practice to mulch the plantation each fall with light manure, leaf-mold or other material.

The Practical Garden-Book |C. E. Hunn
A sprinkling of leaf-mold or chip-dirt will help to lighten it.

The Practical Garden-Book |C. E. Hunn
Cyclamens may be grown from seed sown in April or September in soil containing a large proportion of sand and leaf-mold.

The Practical Garden-Book |C. E. Hunn

It was half-buried in the leaf-mold and moss, though the rain of the previous night had washed it free in one corner.

The Brass Bound Box |Evelyn Raymond