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Cosmos Season: Fields and Mountains Blanketed in Blooms

Published: 2026-09-25 👁 100 views
Last updated 2026-09-25 — Starting from late August, Japan gradually sees vibrant fields of cosmos flowers unfurl their smiles, kicking off the most beautiful prelude to autumn. Also known as the "autumn sakura," cosmos are the most iconic flowers of Japan’s fall season...

By MOOK Scenic Spots Home Travel Life Network Editorial Team
 

Starting from late August, Japan gradually sees vibrant fields of cosmos flowers unfurl their smiles, kicking off the most beautiful prelude to autumn. Also known as the "autumn sakura," cosmos are the most iconic flowers of Japan’s fall season. Even without fertile soil, these flowers can thrive healthily with ample sunlight. Below is a curated list of four top spots in Japan to view cosmos, serving as a handy guide for travelers planning a trip to Japan soon—come admire the autumn cosmos together!

Various colored cosmos flowers at Ibaraki Prefecture’s Hitachi Seaside Park bloom with the autumn wind, creating a picturesque scene. (Image source / National U Ding Kiln County Liang d Han? Ai / p>

● Hitachi Seaside Park (National)

Located in Ibaraki Prefecture, Hitachi Seaside Park (Kokuei Hitachi Seaside Park) overturns common perceptions of autumn. Spanning an impressive 190 hectares, this seaside park is like a paradise of flowers. In addition to the surreal beauty of kokia grass in autumn, from September to late October, vast fields of cosmos flowers burst into brilliant bloom, presenting a heavenly scenic landscape.

Colorful flowers accent the distant bokeh of the Ferris wheel, creating different facets of autumn beauty. (Image source / National U Ding Kiln County Liang d Han? Ai / p>

● Cosmos Carnival at Rainbow Plaza, Taiyo no Oka Park, Engaru

Within its expansive 10-hectare grounds, up to tens of millions of cosmos flowers bloom, making it Japan’s largest cosmos garden. From mid-August to late September, cosmos in shades of pink, white, orange, and yellow will be in full bloom. A Cosmos Carnival event is also held at the park from now until October 4.

The annual Cosmos Carnival takes place from August 22 to October 4. (Image source / cosmos-love)

White, pink, and various other colored cosmos flowers are in full bloom. (Image source / evento.jp)

【Info】
Taiyo no Oka Park Rainbow Plaza
Address: Maruoka, Engaru Town, Monbetsu District, Hokkaido
Transportation: Approximately 10 minutes by taxi from Engaru Station on the JR Hokkaido Sekihoku Main Line

Admission: Charged only during the cosmos blooming period—300 yen for adults, 150 yen for ages 6–15, free for children 5 and under

Golden fields of flowers against blue skies and white clouds create one of nature’s most stunning landscapes. (Image source / JNTO)

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