The Center for Plant Conservation recovers Americas vanishing flora. The Center maintains the National Collection of Endangered Plants, a collection of cultivated plants and seeds of imperiled, native plants in the United States. The Centers participating institutions work with these imperiled plants off-site and in the wild. In the greenhouse, institution scientists conduct horticultural research and learn how to grow the plants from seed or from cuttings. The Centers scientists then provide plant material for restoration efforts in the wild. Institution scientists also assist in monitoring populations in the wild, managing habitat and restoring plants to native habitats.