Neighbor has short hedges rimming their yard to about ankle height. I’d like to extend them a bit every night by using my own hedge clippings, until they notice.
Your trimmings will quickly turn brown, so you will in essence dumping your yard waste in their yard, which would be a shitty thing to do.
This very much feels like a waste of time, even if it did work.
I feel I need to be able to understand what a worthwhile prank looks like to you, in order to understand what you mean by that
Subtract effort involved from expected emotional benefit.
To actually make your neighbors hedge bigger, you would need to plant new plants next to the additional plants, and tend to them to ensure they don’t die after being transplanted. Which is basically landscaping. Which us a job that pays decently primarily because it is a lot of effortful and unpleasant work. And to make your prank work, you will be doing additional labor to hide the fact that you are landscaping your neighbor’s yard, and will also be working at odd hours - either the middle of the day when they are at work, or more likely (assuming you have a job) late at night. So you are basically taking on a part time job for several months to do this right.
Then, the payoff. Most likely, this person doesnt notice at all for quite a while. When they do notice, the maximum possible payoff you will get is that you run into them in their yard, and they make some offhand small talk comment about “my hedges sure are growing a lot this year”, just before they take a hedge trimmer to them, destroying months of your labor in a few minutes.
A good prank is higher in payoff than it is in effort. Like handing someone a gross prank-flavored jellybean. Or (if you want revenge on someone for some reason) hiding raw fish in their car.
Your idea doesn’t meet this critia. It seems like a lot of work for something the person being pranked wont even notice
Cold Open: Jake Pranks Holt - Brooklyn Nine-Nine


