{ "title": "Fire-Retardant Plants for Brush Fire Prevention in Hillside Residential Areas", "url": "https://fireapproved.com/plants/source/la-arboretum-fire-retardant-hillside-1970/", "license": "CC-BY-4.0", "upstreamLicense": null, "count": 25, "rowCount": 25, "regulatoryPublication": null, "source": { "name": "Fire-Retardant Plants for Brush Fire Prevention in Hillside Residential Areas", "publisher": "Los Angeles State & County Arboretum", "url": "https://arboretum.org/issue/lasca-leaves-september-1970/", "region": "Southern California", "tier": 1, "evidenceKind": "field-trial", "lineage": "la-arboretum-tree", "editions": [ { "edition": "LASCA Leaves, September 1970", "date": "1970-09" } ], "scaleNotes": "Table 1 recommends 30 low-growing shrubs and herbaceous perennials in four fire-retardance categories based on leaf moisture capacity: Category 1, greatest (90-95%); Category 2, high (80-95%); Category 3, medium-high (70-80%); and Category 4, least among the recommended set (60-70%).", "notes": "The Arboretum's official archive links to the Missouri Botanical Garden scan of LASCA Leaves. The authors condition the recommendations on watering through the dry season and maintenance that removes accumulated litter. 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