I have an idea for a current event: Aloe Blooms. Since there aren’t aloe plants running around in GW2 like GW1 there has to be a reason for it. Maybe they are like cicadas and only show up in the world from time to time. Maybe they have a mass die off at the end of their life cycle after planting their seeds.
There could be an event where they bloom across Tyria and when the player harvests the blooms they attack the player to defend the seeds. The rare blooms could be a high end crafting item with seeds a lower end one that can be cooked, eaten raw or processed into oil.