@DepDop: i don't think that game you suggested has blueprints though, and from now on i need a game to have blueprints or forget it - i mean what's the point. But thanks anyway.
but even IF they get implemented, what are you going to protect your tent/base from? ants? maybe if you get lucky your plants will make a critical for 1HP against unarmored target.
...I'm undecided whether [your idea is] brilliant or completely mad.
You can put 239847398 plants in your tent, blocking exit grid around whole map, except one hex somewhere in the north-east, so only you will know how to leave tent. Also these plants will lower tent robber FPS so much that his PC can freeze or making loading time much slower, making him easy target for these plants and you (of course if your own PC can resist it). In the end many many many spike throws will deteriorate his armor really fast and start deal 1 damage. So while he'll be staring in loading screen, because of system lags, his armor will be broken already and he'll die by many 1 damage hits.