Collect rainwater or drill a well?

Plants also get used to it. We only sprinkle the lawn every two days, for example. Neighbors also water their hedges; they especially get used to it but rarely need it.

I thought watering the lawn every day is bad because it won’t develop deep roots? In the new garden, we will focus on plants that tolerate drought well, so we don’t have to water so often.

We have grass (for some livestock feed) that roots 80 cm deep. Watering often is counterproductive. We only have a 1200 sqm plot. Most plants are hardy, are watered properly when needed, and that's it. Additionally, thick layers of mulch. About 400 sqm are left to themselves. What do you do during a watering ban from March to October?

Watering ban from March to October?

That has never happened before

Theoretically, that could happen sometime. Then the supply of drinking water takes priority. Here in the Berlin area, I don't seriously expect something like that because we have an extremely favorable geology from a water management perspective. In such a case, pumping from one's own wells would certainly also be prohibited. So only the use of previously collected rainwater would remain, and then we would be back to gigantic cisterns...

In practice, it would certainly be an advantage to have underground drip hoses whose operation no one can see. But that would again be unsupportive...

By the way, lawns should actually not be watered daily because that spoils them too much and they have no incentive to develop good roots. For lawns, one usually assumes 30 liters of water per square meter per week, which could be distributed over two sessions. However, lawns are actually a largely useless monoculture, so I have converted a lot of lawn area on my property into insect-friendly flowering meadows. And those explicitly want little water.

If there is no more water to drink here, the garden will just be yellow for one season. My God.

Thinking one step further: Who is more suspicious, the one with the yellow garden or the one with the green one? It doesn't matter whether it's an underground system or a sprinkler.

We are currently experiencing a so-called once-in-a-century event. That also distorts perception. I would only derive measures from the current situation once tempers have calmed down a bit.