Thank you all so much for the positive coments.
@sharpey: The water used to run off the tables after watering as long as I put the pots on the bare tables. It wasn´t good for the lower tables to have water runnning down so often-so I decided to put all the plants in flat plastic containers that will hold the water. (I think Ralf uses the same ones
You can also move the plants easier if they are put in a kind of rigid container like that.
The sunny but cool weather brought out some more flowers on the Turbs
(and also on the first Parodia of the year)