Right now it's not aggressive, but if you hit it, it will become aggressive and there'll be a fight. I will hint that there is a peaceful way around the situation, but Harry has that right now. It's 100% up to you if you guys want to fight it or not, but I'll tell you that you will most likely level up if you do. Other than the plant right now, you still have the upper room to explore and the back room (behind the ladder) within the orb ship.