An Update on the Green Roof at United Therapeutics

OvS paid a visit to the United Therapeutics Headquarters in Silver Spring, Maryland on May 25th to complete a Final Plant Warranty Inspection for the site.

The purpose of the visit was to inspect all plant material and determine if any replacements were required. We completed a walkthrough of the site and were pleasantly surprised to find that there were very few replacements required. We were also shocked at just how much the plants had grown in a two-year period.

The roof terraces in particular were fantastic. The Achillea tomentosa was a full bloom bright yellow, the Salvia ‘Tesquicola’ was just starting to pop blue and the multiple different colored Sedums had spread as intended. Stainless steel planters, the 6th floor arbor, and beautiful site furnishings, together with the plantings, have created pleasant outdoor rooms to be enjoyed by the employees of United Therapeutics.