East Campus Greenhouses

The East Campus Greenhouses are located on the North side of East Campus. There are several different greenhouse areas available for use.

The North Greenhouse Complex has 23 main research greenhouses with over 60 bays located throughout the houses. Each bay has computer controlled temperature and light settings which can be adjusted based on project needs. Most of the bays have supplemental lighting using High Intensity Discharge (HID) lights or Light Emitting Diode (LED) lights.  Cooling for the greenhouses is achieved by use of evaporative pads or by chilled water cooling.

There are eleven Walk-In Growth Chambers that have HID lights and are set up for tall plant growth. Three of the chambers can add to the ambient CO2 levels and one chamber can reduce the ambient CO2 levels.

Nine Reach-In Chambers are available and amenities vary per chamber but may include additive humidity and/or florescent or LED lights. Three basic Hoop Greenhouse are also available for projects that do not require more precision heating and cooling.

Next to Plant Science Hall are the Teaching Greenhouses which are available for class projects, clubs, etc. Both full service and minimal service options are available at all Greenhouse Complexes.

Extra services can be added at an hourly rate. Two root washing stations are available as well. Access to the greenhouse area is by combination door locks.

 A Greenhouse Orientation and Worker Protection Safety Training (WPS) is required before access is granted. A space request form is required before a project can begin.

For any questions or if you are a new user, please contact Jeff Witkowski () or Donn Ladd (),  Greenhouse Managers.

East Campus Greenhouse


  • Pesticide Application Days – Thursday afternoons from 3:30-6:30pm. Please see postings for exact rooms to be treated.

Donn Ladd

Donn Ladd

Plant Pathology Greenhouse Manager

Donn has been the Greenhouse Manager and the Computer Support Person for the Plant Pathology Department at UNL for 31 years. Donn has a Bachelor’s of Science and a Master’s degree in Horticulture from Kansas State University. Donn’s hobbies are plant breeding and computer building.

Jeff Witkowski

Jeff Witkowski

East Campus Greenhouses Manager

Jeff started his position as Greenhouse Manager located on East Campus in the fall of 2015. Previously Jeff had worked in the Agronomy Horticulture Department with Turfgrass Research for 25 years. Jeff received his Bachelors of Science in Horticulture with a Business Minor from UNL. During his spare time, Jeff enjoys hunting, fishing, traveling, and spending time with his family.


Cole Weston

Cole Weston

Greenhouse Technician at Plant Pathology & AHG 3

Cole is a Greenhouse Technician on East Campus and primarily assists with managing the Plant Pathology & Horticulture Greenhouses.  You can find him making the daily watering rounds, building greenhouse benches, or suited up for the occasional pesticide application.  Cole has a Bachelor’s degree in Turfgrass and Landscape Management from UNL.  When not in the greenhouse, he enjoys going for runs, landscape work, and watching the Royals.

David Orr

David Orr

AHg2, AHG4, & Teaching Houses Technician

David Orr is a Greenhouse Technician at the East Campus Greenhouses.  He assists Jeff with greenhouse pesticide applications, soil mix preparation, lighting installation, and preparing greenhouse class materials for teaching lab projects. During his free time he enjoys camping, fishing, and traveling with friends and family.