 Recycling is a part of the garden's culture.The main north–south walkway is made from recycled pavers from Alki Beach, and the main walkway includes granite pavers from South Africa that did not meet the standards for Westlake Mall.The Rowe family donated the greenhouse to the garden in 2000, and in 2003 the city donated the arbor entrances, which previously served as security enclosures for portable public toilets.