Why are those many regulations?
There is no strict regulation here in Hungary. True, in urban parks you can't see any community gardens. Here, I'm worried about malicious, envious, rancorous people. I've been planting zucchini and tomatoes a couple of years ago near our block of flats. They looked at me as I'm an enemy, who damages the lawn. Then they suspected I steal the water from the common room, which was not true. I brought 20 liters of water per day to the garden, of course from our apartment. As a result of the irrigation, there was a very abundant crop of zucchini and tomatoes. The following year, unfortunately, my neighbors did everything to stop me gardening.