jwitt Posted February 1 Report Share Posted February 1 (edited) 50 minutes ago, Silas_Sancona said: Actually, darker rock ( Inc. Red lava / cinder ) will warm up / melt snow faster than light colored stone like certain light toned, high quartz bearing Granites / Basalts, and light colored Lime/ mudstone, or White Marble chips < by far the ugliest gravel mulch option on earth, imo, lol > As for the overall debate, as I have said numerous times over the years when this discussion crops up ..Ain't no one going around spreading woody chips across the hills out in nature.. if plants survive without it in nature, they dont need it in the garden. Best organic "mulch" is the bounty of free leaves and spent flowers, etc that are shed by everything in the yard each year, left on the ground to decompose and enrich the soil. Untrue with the red lava rock melting snow faster. My whole front yard is half red lava and the rest is gray/white river rock. Sun or clouds, red lava holds the snow the longest. Has to do with thermal mass and the storage/release of heat. Also, at 24f(under snow?)white objects(river rock) become black bodies and absorb thermal radiation as well as something flat black. Good info if growing hardy palms in a colder climate. Maybe only my yard tho I only had one snow this year and did not take a pic. I try and take a pic next snow. Edited February 1 by jwitt 1 Link to comment Share on other sites More sharing options...
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