Eupatorium japonicum (fragrant eupatorium) and chestnut tiger butterflies

Fragrant eupatorium is one of the seven autumn flowers. The best time to see them is in October, however the Shiranoe Botanical Gardens is famous because for the chestnut tiger butterflies that visit there every autumn for the nectar of the fragrant eupatorium flowers.
The chestnut tigers have a poison known as ’pitadillin alkaloid (PA)’ which is used as a sex pheromone by the male butterflies. These traveling butterflies known as ”chestnut tigers” drink the nectar of poisonous plants (such as fragrant eupatorium) and convert it to poison in their bodies, which helps them to escape from predators such as birds, etc. The butterflies migrate to north from spring to summer, and migrate to south in fall.

Time period: October

Address Shiranoe Botanical Gardens
Contact Tel: 093-341-8111 
Shiranoe Botanical Gardens
Fees Regular admission 200JPY, elementary/middle school admission 100 yen
*For groups (20 or more) regular admission 160JPY, elementary/middle school 80JPY
and Holidays
Regular admission JPY200, elementary/middle school admission JPY100
*For groups (20 or more) regular admission JPY160, elementary/middle school JPY80
Access ・Take a Nishitetsu Bus From JR Mojiko Station to the Shiranoe 2 Townme Bus Stop, and you walk straight there,
・By car- take the Kyushu Expressway to ”Moji IC” and it is 10 minutes from there.
Times Available 9:00~17:00
Area Kitakyushu Area
Genre Other Flowers (Flowers and Plants)

The information on this page, including hours of operation and prices, is subject to change. For the latest information and details, please check the store or the organizer's website, or contact them directly.