In the Black Orchid miniseries, Black Orchid, who is also a plant being, shows up looking for assistance. Swamp Thing gives her seeds that she can use to make more sister-selves, and after she's gone Abby wanders into the scene:
Abby: Alec? Who was that?
Swamp Thing: She was...is...an old friend...of an old friend. I was giving her...babies.
Abby: Uh. Right. Y'know, Alec, I, uh, I think we're going to have to have a talk about this...