When we first got our last dog, Nikko, we were living in Suginami-ku, not too far from Wadabori Park. Each morning I would take Nikko to the park for a playdate with friends. There was a wide open space which the city planted with nice grass and then put a rope around so no one would walk on it. The first time an area was cleared and planted, I watched weeds come up through the new grass until they were knee high, then the rope was removed and the weeds were mowed down. It would not be too long before that process was done again, as old homes were removed after flooding from the river.
From then on, while Nikko was running and playing with other dogs, I climbed over the rope and began filling a bag with weeds as they came up. It was simple to spot the weeds and, as they were young, they were easy to pull. Even after moving away, when I pass that area of the park, the grass is strong and the weeds are few.
Returning to the Nerima area, there was no place for dogs to play, but each day Nikko got long walks through the area.
Several blocks from where I live, there is a "high end" area on the other side of the street. The houses there are big with gardens and streets wider than where I live. This park borders the high end from my area, and has a path through to the area behind.
As you can see in this picture I took with Flat Stanley, who was visiting earlier in the year, there is an area that used to be a pond.
Water ran from the top of the hill, seen through the opening in the building, down to the pond near the street. The stepping stones and sculpture were in the water. I don't know when the park was made, probably the early 1970s, but by 1973, the water had been turned off. It now sits under the pond with several open grates, and breeds mosquitoes to the point this might be re-named Mosquito Park
As for how the park is used, construction workers and truck drivers using the toilet in the building are the most often guests. From time to time, people take a shortcut to the back street, and sometimes workmen sit on the stone seats to have a smoke... and toss their cigarette butts and trash on the ground. A few times kids walking past with their mothers run to play on the stones in the dry pond.
As for me, I use the back fence from time to time to hang a quilt for a photo opp.
Two guys come around once or twice a week to rake the leaves, and twice a year or so, to weed-whack. That is about the time when the weeds are knee high and the seeds on them are ripe. I couldn't figure out why a park in such a high end area could be allowed to go to such decay, so I began walking Nikko through the park. I would carry a bag to pick up her poop, and then fill the bag up with weeds I pulled.
The front entrance had knee-high weeds and an area where the neighborhood left their trash for pickup 4 times a week. the area without weeds was mostly bare dirt and rocks. A few years ago, a new apartment was built next to the park, and the trash pickup area was moved leaving the bare ground to weed takeover.
Even after Nikko went to doggy-heaven, I have been going to the park one morning a week to pull the weeds. I started with the front along the street, and have worked my way to the back.
I brought my cub scouts here in the winter when the grass is brown and the weeds are young and green and easy to pull. For their community service project they did a remarkable job and this area has thick grass now with very few weeds.
I might add that about three years earlier, you couldn't even see that manhole cover behind the bag because of the weeds.