The Hamarikyu Gardens, a designated national spot of scenic beauty, is a garden that was built by the Tokugawa shogunate back in the Edo period. Shiori Pond, inside the park, as well as two duck-hunting ponds are filled with seawater from Tokyo Bay. Cosmos and Yellow Cosmos bloom beautifully in the flower garden called Ohanamachi near the Otemon Gate, all in all over 300,000 individual blossoms.Yellow Cosmos starts to bloom in late July while pink, white, and purple Cosmos show their beauty in September. The sight with the ocean of flowers in front of a scenery of skyscrapers is truly unique.
Entry: 300 yen
Hours: 9:00 a.m. - 5:00 p.m. (last entry: 4:30 p.m.)
Holidays: New Year's

This public park was opened to celebrate the 50th anniversary of Emperor Showa's reign. There are four disctinctive places to see the Cosmos: the eastern field called Harappa Higashihata, the western field called Harappa Nishihata, Flower Hill, and the Cosmos Hill. The blooming period is rather long, lasting from late September to the beginning of November, offering a colorful variety of blossoms, the most of them on Flower Hill. In the center of an event called "Dwarf Sensation" are 4 million Cosmos flowers that are all in full bloom, covering the hilly plains in an ocean of pink - an astonishing sight. The best time to experience the Cosmos is in early October.
Entry: 410 yen
Hours: 9:30 a.m. - 5:00 p.m., changing depending on the season
Holidays: December 31st, January 1st, 4th Monday & Tuesday in February

Koganei Park has two fields filled with Cosmos flowers: the Children's Field as well as the Tsutsujiyama Field. The area spans over 3,600 square meters and the most popular sensation undoubtedly are the 20,000 Cosmos flowers of five different varieties. The best time to enjoy the colorful sight is from late September to mid-October. October is also the month where a Cosmos picking event is held for free, allowing visitors to take home their very own blossoming sensation.
Entry: free
Hours: 24 hours
Holidays: none

Stroll along a relaxing walking path around a large pond, through artificial hills and besides beautiful dry waterfalls in Kyu Shiba Rikyu Garden. It was built in the Edo period as the private garden of feudal lords. While the garden does not feature a vast field full of Amaryllis, its charm rather lies in discovering the blooming flowers as colorful clusters in various small nooks and crannies along the pathway. The dark red blossoms, shining brightly among the green grass and trees, exude an extraordinary beauty, with the largest flower patch being in front of the service center. The flowers are in full bloom every September.
Entry: 150 yen
Hours: 9:00 a.m. - 5:00 p.m. (last entry: 4:30 p.m.)
Holidays: New Year's

This lush metropolitan park spreads out towards Tokyo Bay, a beautiful park overflowing with green built under the theme of connecting water, nature, and humans. Starting with a 117 meter high ferris wheel, an aquarium, and a ward hotel, there are numerous facilities on the grounds of the park. Beautiful clusters of Amaryllis flowers blossom all over the park, particularly on the lawn in front of the service center and near the bird watching center. Especially the white dots of rare white Amaryllis make this park a particularly amazing sight. The flowers are in full bloom every September.
Entry: Free (certain facities charge a fee)
Hours: 24 hours
Holidays: none

This park was opened as an extension to The Jindai Botanical Gardens in 1985. Spring water from the botanical gardens flows to the east side at the park, where the wetlands of lie, creating paddy fields and ponds which are home to a huge variety of aquatic plants. The best time to see the Amaryllis in bloom is mid-to late September, when a flower carpet of around 150 meters in length spreads over the garden like a red river.
Entry: Free
Hours: 9:00 a.m. - 4:30 p.m.
Holidays: Mondays (Tuesdays if Monday is a national holiday), New Year's