As Director of the Nature Gardens at the Natural History Museum, my job is to insure that the gardens fulfill their intended purpose – providing habitat for wildlife and serving as a field site to study urban biodiversity. My horticultural team tends the gardens using sustainable practices. We routinely assess plant health and monitor the satellite-linked irrigation system to insure maximum water efficiency. The gardeners use hand tools, electric power equipment, organic fertilizers and compost tea made onsite. Integrated pest management strategies keep pests in check and only organic pest control products are used if necessary. Since change is a constant in any garden, plant compositions need to be adjusted over time. Using the original design concepts of Mia Lehrer and Associates as reference, plant choices are based upon ecological fitness for the site, wildlife habitat value, proper size, and aesthetics.