I really like this idea of an umbrella slowly watering seeds. This is a project called Green Trace by Junjie Zhang. The principles are simple : everytime you put your wet umbrella it waters the plants that will just grow according to where the water drops have fallen.
and another Japanese Jun Yasumoto designer also invented e a vegetal shower based on the idea of phyto-purification
: what do you think of that ?
i'd love to try i think