a covering, as of straw, compost, or plastic sheeting, spread on the ground around plants to prevent excessive evaporation or erosion, enrich the soil, inhibit weed growth, etc.

verb (used with object)

to cover with mulch.


Nearby words

  1. muktuk,
  2. mulatto,
  3. mulberry,
  4. mulberry family,
  5. mulberry harbour,
  6. mulcher,
  7. mulciber,
  8. mulct,
  9. muldoon,
  10. mule

Origin of mulch

1650–60; noun use of obsolete mulch (adj.), Middle English molsh soft, Old English myl(i)sc mellow; cognate with dialectal German molsch soft, overripe

Related formsnon·mulched, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mulch

British Dictionary definitions for mulch



half-rotten vegetable matter, peat, etc, used to prevent soil erosion or enrich the soil


(tr) to cover (the surface of land) with mulch

Word Origin for mulch

C17: from obsolete mulch soft; related to Old English mylisc mellow; compare dialect German molsch soft, Latin mollis soft

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

Word Origin and History for mulch
Online Etymology Dictionary, © 2010 Douglas Harper