Summer sunflowers AND Autumn sunflowers, Ancient Lotus, Cosmos and Hydrangea in the Isanuma area of Kawagoe. At Isa Marsh and the Isa marsh East Bank Flower Garden or Isanuma Tōgan Hanabatake in Japanese. I added information for a new cafe with a great outdoor seating area in spring 2021 and in 2022 for another new cafe and summer sunflowers.
⚠August 6th 2023: this year they have grown the summer sunflowers in the large field, where they normally grow the autumn sunflowers. Which actually might mean there are no autumn sunflowers. Or they will be grown later than normal. If I find out, I will update this post. |
Isa Marsh

Isanuma is an area in Kawagoe. Numa means marsh or swamp. The area is named after the Isa marsh. The marsh is particularly well known and beloved by avid bird watchers. I am in the area a lot and there are always dozens of bird photographers around the marsh. To the West of the marsh is the Isanuma Park which is quite popular with locals for summer fun and for hanami picnicking under the cherry blossoms.
Ancient Lotus

At the North of the marsh itself is a lotus pond. From about mid June until the end of July you can see ancient lotus in bloom. They say the best time to visit them is early morning, because they open up when the weather is cooler. Even in the afternoon today (July 16th 2020) quite a few were open because the temperatures were cooler than normal.

Isa Marsh East Bank Flower Garden
On the east side of the marsh there is a community flower garden. It isn’t particularly big, but it is done very well. I visited specifically to see the sunflowers, but it looks like they were only planted very recently. If you’ve read my other posts about sunflowers you’ll know the large sunflower fields aren’t opening to the public this year. So community fields / gardens are the way to go.
Sunflowers and Cosmos August 1st 2021:

Sunflowers
There are both summer sunflowers and autumn sunflowers at the East bank garden. New in 2022: there are also sunflowers at the Kawagoe City Agriculture Interaction Center that bloom at the end of August.
⚠August 6th 2023: this year they have grown the summer sunflowers in the large field, where they normally grow the autumn sunflowers. Which actually might mean there are no autumn sunflowers. Or they will be grown later than normal. If I find out, I will update this post. |
Summer Sunflowers

What I love about this flower garden is that there is a path among the sunflowers. Most of the community fields you can actually walk into the field even if there isn’t a path; so long as you take due care not to damage the flowers. However, as most of them are as natural as natural can be you do have to be weary of snakes. In Isanuma the grass is kept short on the paths so you can see if a snake is passing. Do take care of the thousands of frogs that live in these fields though, they are not as easy to see.

As far as I know this community flower garden doesn’t have an official website. I usually get my information on the Kawagoe City website, but they didn’t update information for the flower garden for 2020 or 2021 (so far anyway), so I just went myself each time to check on the conditions. I was particularly lucky on August 1st 2021 as both the August sunflowers and cosmos were in bloom.
⚠August 6th 2023: this year they have grown the summer sunflowers in the large field, where they normally grow the autumn sunflowers. Which actually might mean there are no autumn sunflowers. Or they will be grown later than normal. If I find out, I will update this post. |
New in 2022: Late August Sunflowers

When I say “new”, I mean new to the blog. These sunflowers have been around for a while, but this is the first year I got a photo of them. They are North of Isa marsh (Isanuma) past the farmer’s market, behind the Kawagoe City Agriculture Interaction center. In 2022, the Agriculture Interaction center was closed for renovations, but it reopened in 2023 with a new Glin Coffee cafe (more information here). You would need to walk up from the parking at Isa Marsh East Bank Garden. Its not far, about a 10 minute walk. You cannot walk among these sunflowers except at the end of the season when they open up the fields for sunflower picking.
Looking for sunflowers in your area of Saitama? Use the “Sunflowers” tag to find sunflowers near you. Sunflowers in Saitama Prefecture, Japan… |
Autumn Sunflowers



The garden grows sunflowers in Autumn too. And the autumn sunflower field is about ten times the size of the summer sunflower display. It looks like a sea of sunflowers. They are across a small dirt road that leads to the car park for the garden. However, in 2023…
⚠August 6th 2023: this year they have grown the summer sunflowers in the large field, where they normally grow the autumn sunflowers. Which actually might mean there are no autumn sunflowers. Or they will be grown later than normal. If I find out, I will update this post. |
Cosmos

Cosmos usually bloom around the end of September and October in Saitama. But the ones at Isanuma East Bank Flower Garden bloom earlier. In 2020 they bloomed in September. But in 2021, they were already in bloom from August 1st. On my last visit on September 1st 2022 they were coming along nicely.

August 4th 2020: on a subsequent visit (today August 4th) the sulfur cosmos were in bloom. And so beautiful, particularly the red tinged ones. There were some workers at the site today and they were scything some of the sulfur cosmos though. Unfortunately, I don’t know why and if they planned to take them all.
Hydrangea

The hydrangea bloom around mid June to early July. On a visit on July 17th 2019, they were still in bloom but past their prime – well past it – but they still looked very picturesque. Particularly against the new green and with the picturesque fence and in the background.
Other blooms

There is a lovely little seating area along the river with a few other blooms and lots of butterflies as well as the inhabitant frogs! Among the flowers in bloom is what I believe to be what they call false sunflowers! Please correct me if I am wrong!




Smiley Isanuma
New in Spring 2021:
Access Isa Marsh / Flower Garden

There is a large car park right on the south end of the flower garden by the sunflowers. You can walk to the marsh from there or move your car to the Isa Marsh North end car park. There is also parking on the West side by the Isanuma Adventure playground.
ahhh just so Japanese. take care over there!
You too, take care over there!!
Lynda this are looks beautiful. Awesome story you have too, living in Japan for 12 years. My wife taught English in Hiroshima for 1 year. Loved it. I hope to see Japan soon, as soon as travel opens up.
Hi Ryan, thank you so much for commenting and for sharing my tweet. I love so much of Japan (its not without its challenges of course), but particularly the beauty. So much to do and see too. I really hope you get to see it yourself someday.
Oh, do you think the sunflowers will still be in bloom next weekend?
Hi K, they are allowing picking of the flowers now and with it being a long weekend, quite a lot might be picked. So even if they are in bloom they might be quite scarce by next weekend. Maybe have a look at Instagram before you intend to go to see if people are still posting photos / flowers still in bloom.