A typical homegarden has a similar structure from year to year, though there may be some seasonal variations. The lowest two layers (up to 2 m in height) are dominated by starchy food plants, vegetables and spices. Cassava and ganyong (Canna edulis) are the most common plants found in the homegarden. The next layer (two to five meters) is dominated by bananas, papayas and other fruit trees. The five to ten meters layer is also dominated by fruit trees or other cash crops, such as cloves. The top layer, higher than 10 meters, is dominated by coconut and other trees, e.g., Albizia, for building materials and firewood.