Bonsai accent plantings (not bonsai under-plantings) are used to complement the formal bonsai, and are usually small plants such as grasses (like Mondo Grass), dandelions, dwarf bamboo or seasonal plants such as the bulbs 'Spring Starflower' and 'Rose Grass'. Accent plants are planted in small, colorful containers and displayed alongside the actual bonsai. They are not to be trimmed in the same way as a bonsai and should be left to grow relatively freely. They also are an important element in the Tokonoma arrangement.