At first, I thought that in Hokkaido University, when I opened the navigation, I saw the opposite direction. It was about ten minutes'walk from the south entrance of Sapporo Station. Tickets are not expensive, and the garden is not too big. An hour's walk is enough. There's a greenhouse in it, but many flowers are gone this season. There is also an alpine botanical area, and no flowers. If time is not enough, there is no need to run over.