Poison ivy's pods

Answer from: GuyveroZ
Use the batarang on the yellow things when the pods open

Answer from: Lighting
Ok, this is what you REALLY do. (first time going against her)
1) defeat the three first goons that Ivy throws at you.
2) after that two buds and goons show up.
3) don't worry about trophie goons, they'll regenerate and regenerate, so defeat them when they get in the way. What you are really aiming for, is the red buds. Defeat them, like you were before, aim your batarang and FIRE!!
4) the one to the left gives you the peices to a purple smoke generator thingy, the other, on the right, gives you a handle for super strength batman can grab on and break the shed's doors.
5) after the shed's doors break pieces will come out. Place the pieces together. You'll then get a lawn mower. The lawn mower will get rid of the vines covering that wheel
6) if you have already placed the purple smoke generator, or pesticide spray thing, it's then when you twist the vine-free wheel "switch"
7) that will give you the purple smoke to come out of the generator and defeat Ivy.
HOPE THIS HELPED!! :)

Answer from: jj
Go to the batcave and desrtoy silver items to get night wing