Green Roof Soils and Plants Soil Treatments: A.“Standard” Soil Treatment: 65% lightweight expanded shale, 15% biosolids compost, 10% Perlite and 10% fines (All percentages calculated by weight) B.“Biochar” Soil Treatment: Contains 7% biochar in the proportionally adjusted standard soil media C. No soil (Control) 1. “Conventional” Plant Treatment: White Stonecrop Chain Stonecrop Sedum Weihenstephaner Gold Russian Stonecrop Chives Fuldaglut John Creech Eastern Prickly Pear 2. “Alternative” Plant Treatment: New England Blazing-Star Common Yarrow Chive Eastern Red Columbine Pennsylvania Sedge Poverty Oat Grass Spotted Beebalm Plant Treatments 3. No plants (Control)

1. “Conventional” Plant Treatment: White Stonecrop Chain Stonecrop Sedum Weihenstephaner Gold Russian Stonecrop Chives Fuldaglut John Creech Eastern Prickly Pear 2. “Alternative” Plant Treatment: New England Blazing-Star Common Yarrow Chive Eastern Red Columbine Pennsylvania Sedge Poverty Oat Grass Spotted Beebalm Plant Treatments 3. No plants (Control)

Soil Treatments C. No Soil (Control) A.B. *Percentage of soil by weight

Watershed 1 Control No Soil Treatment No Plant Treatment

Watershed 6 Control No Soil Treatment No Plant Treatment

Watershed 7 “Standard” Soil Treatment (A) “Standard” Plant Treatment (1)

Watershed 3 “Standard” Soil Treatment (A) “Standard” Plant Treatment (1)

Watershed 2 “Standard” Soil Treatment (A) “Alternative” Plant Treatment (2)

Watershed 4 “Standard” Soil Treatment (A) “Alternative” Plant Treatment (2)

Watershed 5 “Biochar” Soil Treatment (B) “Standard” Plant Treatment (1)

Watershed 8 “Biochar” Soil Treatment (B) “Standard” Plant Treatment (1)