Arkham Asylum, after her injection

The injection of Titan the Joker had given her had changed her in new ways. Normally the titan formula turned people into overly muscular loons, but none of the test subjects had an active metagene. Or a connection to the green. Which highten her powers over plants. It also enhanced her bodies ability to create and manipulate chemicals. She mostly used them for toxins and pheromones, but she was a genius in bio-chemistry.

'With my plants growining and soon taking over the island, it's only a matter of time before Batman tries to stop me. Likely destroying my plants on the way. What if I can use that to my advantage? There are pine cones and other seeds which only grow after the destruction of a forest fire. A few modifications and my plants can due the same thing, creating rebirth from ****. Plus I can use that destruction for other uses.' thought Ivy as she mentally caused her plants to mutate and alter with her Titan enhanced powers.

Later...

Batman looked at the plants. Like what he had told Barbara, they looked like the versions that Ivy had used before. Spilling out toxic pheromones which would kill that who would breath them in, shutting down their nervious systems. He had seen one of the mentally ill patients examine the plant. Nearly had their head eaten by it, before a glowing ball of pheromones burst on them causing them to hit the ground.

Still, he had to stop their threat. Likely, he had made a serum from the previous pheromones which rendered him more resistant to the **** Pheromones. And so, he started to pop the fly trap like bulbs as he went. Stopping more of the criminals and patients, including some snippers. By the time he was in the red pheromones rich Botanical Gardens, his suit looks like he had been covered with glitter from bulb's pheromones.

Soon he was at the door of where he had left Ivy, not knowing the erotic surprise waiting for him.