Nemophila in Hitachi Seaside Park

Late April to mid May. It's quite a trip and it's not cheap to go (though using Tokyo Wide Pass and doing other trips the following days makes it affordable) and personally I didn't find Nemophila to be as beautiful as Kochia in autumn. Still - it's nice to see. Don't expect too much though. And only go if sunny weather can be expected - otherwise the colour wont shine

Location: Hitachi Seaside Park is about two hours by train from Tokyo Station to Katsuta STation, where you need to take a bus to get to the park. Taking the bus is no problem, friendly staff will guide you from the station on. It's a bus only connecting the station to the park and back. All info can be found here, also on the other flower attractions.