The park is situated on land reclaimed from the Ariake Sea, known for having the largest tidal range in Japan.
The sunflower varieties are specifically selected to bloom in late summer to coincide with the Obon holiday period.
The park does not have a permanent structure or entrance gate, as it is a seasonal open-field project.
Soil conditions in this part of Yanagawa are influenced by the salt content of the surrounding Ariake bay area, which affects plant growth cycles.
The site is often used for local agricultural festivals and photography contests during the peak bloom.
Yanagawa Sunflower Park is a seasonal agricultural attraction in Fukuoka Prefecture known for its expansive fields featuring hundreds of thousands of blooming sunflowers. The park is cultivated on reclaimed farmland that sits along the Ariake Sea coastline. During the peak summer season, the area transforms into a vibrant yellow landscape often reaching its full bloom by mid-August. The site is maintained by local agricultural efforts and provides an open, flat vista unobstructed by large buildings or trees. Visitors walk through mowed paths between densely planted rows of flowers that can reach over human height. The park is particularly noted for its rural setting and lack of commercial infrastructure, focusing entirely on the floral display.
The elevated walkway or the perimeter of the field, which allows for a wide-angle shot of the entire yellow expanse.
Bring a parasol or hat as there is almost no natural shade in the open fields.
Wear closed-toe shoes as the field paths can be dusty or muddy depending on recent rainfall.
Carry sufficient hydration as there are no vending machines or facilities directly within the planting zones.
Do not wander outside the designated walking paths to avoid damaging the crops and disturbing the irrigation lines.
Open only during the summer blooming period in August; the field is plowed under and inaccessible once the season concludes.
Do not enter prohibited rows, do not pick flowers, and carry all trash away from the site.