A garden? You could ask Rosé, they might know.

[ they can be helpful and also invested in hydra, wow. ]

Never heard of the guy, but that's a lot of heads! And also sounds like a pain. Can't it just stay dead? Maybe if you poured salt on it it'd stop growing.

I've never gone fishing in lava. If you find some fish here, you can try to cut it? It's...probably okay.