Wisteria tunnel garden in Fukuoka

It's the Kawachi Fujien. You’ll need to take the JR line to JR Yahata station (15 min. from Kokura station). During the peak season, there's a shuttle bus from the station. If not, you need to take the regular bus and walk for 45 min. See details on this website. http://www.japan-guide.com/e/e4881.html