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Facility Guide

Step Garden

Like a green mountain in the middle of the city.

The face of ACROS would have to be the rooftop greenery space known as the “Step Garden”.

The rooftop garden flows like a waterfall of greenery cascading down the stepped-sloping side of the building. Known also as the “ACROS Mountain”, it resembles a mountain in natural surroundings.
The mixed planting of uniformly trimmed trees (known as konshoku okarikomi) method was used to give the impression that Tenjin Central Park extends right up to the top floor of the ACROS building. Greenery is planted on the roof of each story and in mini-planters lining the lower positions, and the trees are trimmed to give a sense of unity between the park and the building.
The rooftop green area extends for 5,400 ㎡ from the 2F to the 14F. When constructed, 76 varieties totaling 37,000 plants were planted. Subsequent additional planting and the dispersal of seeds by wild birds have served to bring even greater diversity to the garden, which currently boasts 120 different varieties and a total of 50,000 plants.
According to the results of a study conducted by Kyushu University, cold air currents generated by the step garden at night make the garden and park comparatively cooler than the surrounding city area.

The Step Garden is open to the public, accessible from two entrances on the park side. It cannot be accessed from inside the building. Opening hours vary according to the season so please check the times below.

Opening hours ・March to April 9:00〜18:00
・May to August 9:00〜18:30
・September to October 9:00〜18:00
・November to February 9:00〜17:00
Notice ・Rooftop Observation Deck open 10:00 〜 16:00 on weekends and public holidays.
・Closed during inclement weather.
・Smoking prohibited in garden (including Observation Deck).
・Pets prohibited.

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2008

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2017

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Spring

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Summer

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Autumn

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Winter