Flowering Cactuar is an enemy in Final Fantasy XIII. After engaging a Flowering Cactuar in battle, it will instantly use the Parting Dance ability and unleash a furious combo that may include Firaga, Blizzaga, Waterga, and Quake. Failure to pacify it before the combo ends will result in the use of its Adieu ability, which allows it to flee the battle.
The easiest way to defeat the group of them, especially when they are in five is using Fang's Bahamut immediately when the battle starts. After that player should quickly activates the Gestalt Mode and hit them with Hunting Dive until all of them are staggered. Then use the Mega Flare to finish them quickly without worrying them to flee from battle. It's best to equip the Growth Egg accessory to make the CP increases into 75,000 when fighting 5 of them.