Washington and Lee University
OP-9: Landscape Management

Forested areas, building footprints, hardscapes

No inputs except the rare addition of organic nutrient sources

We work with a third party, Bartlett Tree Experts, to help us with pest management of ornamental plants in our 40 acres of managed landscaping. It is a monitoring program where action is taken only when pests or disease has reached a certain threshold. It focuses on maintaining healthy plants, soil, and overall ecosystem over using a routine spray program as a go-to, first choice for plant care. IPM program components: https://www.bartlett.com/resources/ipm-for-landscape-plants.pdf

1. The majority of the landscaped plantings on campus are perennial, meaning they do not need to be replaced every year, they are simply maintained year after year instead of replanting each year.
2. Our grounds crew also uses native and/or ecologically appropriate plants as the first choice for landscaped areas. Drought tolerant plants are also preferred. The crew assesses the locations and incorporates appropriate plants into the landscaping based on findings, for example "nativar" (native cultivar) azaleas and rhododendron (which are native to our local mountains) are planted in shady spots on campus because they thrive with little attention in shade.
3. The grounds crew controls invasive species including the few places where English ivy was planted long ago on campus. They cut this back every year to make sure it doesn't spread outside of the small area it was originally planted.

1. Water-wise, drought tolerant, and perennial landscaping plants are first choice for plantings, so the majority of our landscaping plants are established and water is used only in drought conditions. When watering occurs, sprinklers are used (we realize this is not a sustainable form of watering and will continue to try to work on this), though these sprinklers are monitored through timers and manually checked by Assistant Director of Landscaping, Rick Rogers.
2. We have three rain gardens on campus. These are self-sustaining landscapes that reduce storm water runoff, help water quality, and only require minimal hand weeding twice a year from the grounds crew.

1. The majority of the plantings on campus are perennial, meaning they do not need to be replaced every year, cutting down on plant waste. 1% or less of our landscaping plants are annuals.
2. Woody plant material (brush and debris) that has either died or been pruned is collected in a pile on back campus and picked up by Beverly Brothers Logging in Buena Vista, VA. There it is ground up and delivered to WestRock plant in Covington, VA, where it is used as fuel to generate power for their plant.
3. All dropped leaves in the fall are collected by the grounds crew and stored out at our compost system to be used as a bulking agent when mixing food waste into the composting process. We also donate a large amount of these leaves to Boxerwood, educational nature center and garden, which they include in their compost piles and also give away to people in the community.

1. The grounds crew plants new trees when necessary to minimize attrition. There are over 300 trees on our 40 acres of managed landscaping and several hundred more on the rest of W&L property.
2. Electric powered landscaping tools are used over gas powered tools.
3. When budget permits on building projects, we take into account creative, energy-efficient landscape into our architecture. For example, we have a partial green roof over a section of Leyburn library. The plants create natural insulation which means that there is less need to rely on heating and cooling systems to moderate interior temperatures. The plants also reduce temperatures of the roof surface and surrounding air, which help moderate the heat island effect. It is also a self-sustaining landscape that only requires minimal hand weeding from the grounds crew.

Pro-active tree-planting (additions, not replacements), purchased an electric zero turn mower, planting of natives and pollinator friendly perennials, sowing wildflowers.