Weeds, what's the point?

It's just like those 45 minute tasks minute tasks. You don't really use them, but they are there because the game will from time to time give them to you. More of an annoyance, but part of the game. :D

Plant something that is 8 hours (at the moment I forget what that is) or plant moonshine. Also, planting triffids will not really do much for you except give you xp. I only plant that when the game tells me to plant it.