leaf mould

noun

a nitrogen-rich material consisting of decayed leaves, etc, used as a fertilizer
any of various fungus diseases affecting the leaves of certain plants

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for leaf mould

Historical Examples of leaf mould

There was nothing but the silent deserted wood and the mound of leaf-mould.
Antony Gray,--Gardener
Leslie Moore
Test with clay, gravel, and loam, also with mixtures of these and leaf-mould.
Ontario Teachers' Manuals: Nature Study
Ontario Ministry of Education
For early crops, mild manure, such as leaf-mould, should be used.
The Field and Garden Vegetables of America
Fearing Burr
They like a light, but rich soil, with the addition of some leaf-mould and silver sand.
The Book of Bulbs
Samuel Arnott
They should be planted in loam, peat, leaf-mould, and sharp sand.
The Children's Book of Gardening
Mrs. Alfred Sidgwick