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Seasonal Nature · Osaka · Kansai

Cosmos and Kochia Festa

コスモス・コキアフェスタ

About 150,000 cosmos and 3,600 kochia bushes cover a hill in the park at Suita in Osaka each October, with pink muhly grass and red buckwheat behind them.

Cosmos, kochia and muhlenbergia, Expo 70 Commemorative Park
Cosmos, kochia and muhlenbergia, Expo 70 Commemorative Park © Yoshimoto Kogyo Co., Ltd.
Dates
3–30 Oct 2026Every year
Opening hours
Mon–Sun09:30–17:00
Holidays09:30–17:00
Admission
Standard
Adult¥450
High School¥450
ChildFree
Links
Official websiteJapanese
Venue
Hill of Flowers, Natural and Cultural Garden1-1, Senri Banpaku Koen, Suita-Shi, Osaka 〒 565-0826Bampaku-kinen-kōen Station 万博記念公園Walk 9 minutes7 minutes by bus to 記念公園西口

Through October a hill inside Expo '70 Commemorative Park at Suita, on the northern edge of Osaka, is given over to autumn flowers. The park stands on the grounds of the 1970 world exposition, and the slope used for this is called the Hill of Flowers, in the part of it laid out as a garden.

About 150,000 cosmos are planted, in several kinds: the mixed colours of the Sensation strain, the white of Sensation White, and the orange-yellow of the kibana cosmos, which is a different species.

Beds of cosmos on the slope, Expo 70 Commemorative Park
Beds of cosmos on the slope, Expo 70 Commemorative Park © Yoshimoto Kogyo Co., Ltd.
Cosmos in flower, Expo 70 Commemorative Park
Cosmos in flower, Expo 70 Commemorative Park © Yoshimoto Kogyo Co., Ltd.

Among them stand about 3,600 kochia, the round bushes also called summer cypress. They are green through the summer and turn deep red in October, and they are set out in rows down the slope.

Kochia turning red, Expo 70 Commemorative Park
Kochia turning red, Expo 70 Commemorative Park © Yoshimoto Kogyo Co., Ltd.

The north side of the hill carries other things. Muhlenbergia, a grass that throws up a haze of pink flower heads, is the one people photograph most; walking into it is not allowed, and a few places are cut into the planting to stand in instead. Red buckwheat grows there as well, its flowers red rather than the usual white.

Muhlenbergia in flower, Expo 70 Commemorative Park
Muhlenbergia in flower, Expo 70 Commemorative Park © Yoshimoto Kogyo Co., Ltd.

A good deal is arranged around the flowering, and most of it changes from year to year. In 2026 the hill has a market of bakers and lunch sellers from the surrounding towns on four of the weekends, food stalls on many other days, a brass band playing in a square of plane trees a few minutes away, workshops in a tent, and a paid session with a photographer for anyone who wants a picture taken among the flowers.

The path up to the hill has been made into a work of its own. Two artists working under the name PRO have marked the route with leaves eaten through by caterpillars, as a trail to follow to the top.

The festival itself is free. Entry to the park's Natural and Cultural Garden and Japanese Garden costs 450 yen for high school age and above, and is free for junior high age and below.

At Hey Japan!, we strive to keep the events listed on our website as current as possible. However, event organizers may cancel events, alter schedules, or modify admission requirements without prior notice. Check official websites before attending any event.

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