This is a flower garden about 7 hectares in width in Biei, Hokkaido. There are about 30 varieties of flower on display, ranging from lavender, cosmos, lupine, and sunflowers, which you can enjoy from spring until fall every year. It is open throughout the year and from late April until the end of October is the green season. Norokko (bus), buggies, and carts can be found in the park, and during the winter season you can ride a snowmobile through the snow.
https://www.japanhoppers.com/en/hokkaido/furano/kanko/530/