Pots in the ground. I filled the pots with just under 2 litres of water a piece. They are about 1/2 full this morning, so I figure they will need to be filled every other day while the weather is somewhat cooler. We are getting a very nice gentle rain right now so this schedule for filling is only speculation. I am going to cover the holes with rocks to cut down on evaporation and mosquito larve.
This pot did not get into the ground till early evening. It was filled at the same time as the others. The water had leached 6 inches into the ground when I dug the hole, about the same amount as the water level inside the pot. If all goes well, when all the pots are in it should only take a little over 15 gallons of water a week for the 2 beds. We shall see.