Submitted by György Chityil ... on Sat, 01/20/2018 - 01:06 Hierarchy: NounDescription: {{horticulture}} The practice of covering plant roots with stone, in the manner of a mulch.Ngram: stone mulchingNgram Text: stone mulchingSource: WiktionaryIssue: 0Wiktionary tag: horticultureNgram Count: 2