As poppy, Level 11 is relatively lackluster as she only gets the cooldown on the ability reduced. When compared to other Junglers, it doesn't bring a lot to the table.

Poppy is extremely potent during this phase of the game as she can deal consistent damage and CC enemies for days. Her tankiness makes it impossible for the enemy team to kill her as well.

Level 9 is when her first ability will get maxed. This will let her deal a lot of damage to enemies she has managed to catch. It will also allow her to thwart escape attempts from the enemy.         As poppy, Level 11 is relatively weak because it only gets the cooldown on the reduced ability. Compared to the other Junglers, it does not bring much to the table. Poppy is extremely powerful during this phase of the game because it can inflict constant damage and CC enemies for days. Its tankness makes it impossible for the enemy team to kill it as well. Level 9 is when its first ability will be maximized. This will allow it to treat a lot of damage to the enemies it has managed to catch. It will also allow it to counter the enemy's escape attempts.