When we went to Baguio a while back we invested in these ‘spikes’. You put them on the end of a 1.5l drinks bottle filled with water and spike them into your plant pot. They have a teeny weeny tap on them so that water can slowly drip out. Some worked well, some emptied themselves in the first day…the taps are tricky to adjust. But no plants died! My drawing ended up a bit muddy, hence the title.