Compost Tea

Penn treats the campus soil, grass, and plants with compost tea -- an organic alternative to chemical fertilizers

Green Fund Projects

Warmth from Waste Wood


An EPA-certified hydronic heater unit (an outdoor wood-fired boiler) will heat the Arboretum’s Horticulture Garage through the use of waste wood. Fuel cost savings from the installation of the hydronic heater are expected to equal a 30-50% reduction in consumption.

The hydronic heater reduced the building’s oil consumption by 66 percent compared to two years earlier. The wood-fueled heater reduced the building’s heating oil demand by 852 gallons and resulted in a savings of more than $2,600 compared to the prior year.

Project Leader: 
Justin Jackson, Horticulture Section Leader - Rose Garden and Anne Brennan, Natural Areas Manager, Horticulture
Project Sponsor: 
Anthony S. Aiello, Director of Horticulture and Curator


By turning down a thermostat by 1 degree, you can save 3% on your home energy bill.