I made it with tinkercad, and my idea was a flowerpot without human control , it can drip water slowly and automatic. The upper flowerpot can plant the flower which need more water, and the lower can plant which need less water . My English isn't very well, thank you for your reading :)
Step 1: "Cloud" Water Box
I designed it can drip water slowly without human control. We can only put water into it once a week, in the bottom of the box we need to put a cotton cloth to cover the small holes, and with capillary phenomenon, the water in it will drip slowly.
Step 2: Flowerpot
I designed the flowerpot with the shape of sakura, but the idea of the shelf was morning glory, and the spare water needs to remove ASAP. So I put a funnel in the bottom of the flowerpot.
Step 3: Pipeline
The pipeline is designed by the shape of vine. It can carry the spare water from the previous flowerpot to the next.