Sometimes you are the plant that needs watering, other times; you should be watering the plants.
Unlike some other types of art, software is never really finished. I don't think that painters or sculptors regularly revisit their creations to try and improve them. They don't have versions 2, 3, or 4 of a painting or statue. The closest thing might be writers who sometimes have multiple editions to their books. There is always something to do to improve a piece of software so it can keep you up too late at night because it is just a compile or two away.
Oops, gotta go, I just thought of a new feature for my project...
On the subject of creativity, I (like many others Im sure) have found travelling to be great for creativity, alone or otherwise! There was an article linked here a while ago about a person who embarked on “staycations” where they just remained confined to their hotel room explicitly to enhance their writing.