Ms. Rollenhagen is the lab instructor for Principles of Horticulture (Hort 221), Greenhouse Operation and Management (Hort 332), and Greenhouse Crop Production I and II (Hort 434 and 435). Ms. Rollenhagen is also the lecturer and lab instructor for Foliage Plants for Interiorscapes (Hort 253). She also serves as an advisor to Hort Club, coordinating their project of installation and maintenance of foliage plants in the Gerdin Business Building.