Urban agriculture refers to "growing, processing and distribution of food crops and animal products, by and for the local community, within an urban environment. It exist in many forms including: community and backyard gardens; rooftop and balcony gardening; growing in vacant lots, right-of-ways, and parks; container gardening; aquaculture; hydroponics; fruit trees and orchards; market farms; raising livestock and beekeeping. It also involves post-harvest activities such as creating value-added products in community kitchens, marketing crops and products and addressing food waste.