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Tennessee Tree Day Tree Flammability Ratings
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Species Scientific NameCommon NameFlammability RatingNotes on Firewise landscaping practices to reduce wildfire risk in defensible space around home (30-100ft).
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Prunus americanaAmerican PlumLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Taxodium distichumBald CypressMore FlammableShould be planted at least 30 feet from structures and widely spaced with more than 15 ft between crowns.
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Prunus serotinaBlack CherryLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Cephalanthus occidentalisButtonbushLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Symphoricarpos orbiculatusCoralberryLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Juniperus virginianaEastern Red CedarMore FlammableShould be planted at least 30 feet from structures and widely spaced with more than 15 ft between crowns.
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Cercis canadensisEastern RedbudLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Castanea sppHybrid ChestnutLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Gleditsia triacanthosLocust TreeLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Quercus rubraNorthern Red OakLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Quercus texanaNuttall OakLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Asimina trilobaPawpawLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Carya sppPecanLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Morus rubraRed MulberryLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Ilex amelanchierService BerryLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Carya ovataShagbark HickoryLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Carya laciniosaShellbark HickoryLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Quercus shumardiiShumard OakLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Cornus amomumSilky Dogwood Less FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Rhus typhinaStaghorn SumacLess FlammableCrowns can be touching; create separation with shrubs; remove "ladder fuels" by pruning lower branches when mature.
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Pinus virginianaVirginia PineMore FlammableShould be planted at least 30 feet from structures and widely spaced with more than 15 ft between crowns.
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For questions, contact Michaele with Sevier County Extension at mbloodsw@utk.edu
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References:
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Firewise Landscaping in Tennessee, TN Dept of Forestry
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Extension Gardener Plant Toolbox, NC State University
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Selecting Firewise Plants, Utah State University
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Selecting Firewise Shrubs, University of Florida Extension
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