As the art of Australian plants online evolved, the Victorians popularized the practice in the 19th century. During this time, indoor plants were seen as symbols of wealth and sophistication, and were grown in elaborate greenhouses and conservatories. Indoor and outdoor plants play a vital role in our lives and the ecosystem. They provide us with oxygen through photosynthesis, serve as food for both humans and wildlife, regulate the climate, prevent soil erosion, and have cultural and medicinal values.