German news in 2023: Despite all the rain this winter, the ground water level is too low and experts demand a national plan to fight drinking water issues. This is fine.
@bastianallgeier From California: There is lots of information on drought-tolerant plants and gardening techniques available from our University of California Cooperative Extension service.
I know this is designed for the various California biomes, but it might be of help. We have had a a lot of "practice."