need a pic to opine ...

if the hanging basket.. if i understand properly.. dries too fast.. then its a media/water management problem ...

also.. how did you get rid of the slugs .. perhaps you burned the leaves ...

Ps can take a very hard cut back .. look for small buds down near the terminus of the plant ... and PERHAPS start cutting back some of the old long pieces .... this will reduce water needs for a while ... you can do it all at once.. and have a rather ugly plant.. of do one every few days ... so you still have something to look at ...

but thats all guessing without a pic...

ken

This is how it looks now. replaced it so i could monitor it. After traps and removing them by hand i had to buy some poisonous pellets, but it didn't came in contact with plant, and it dried out beause of slugs. Now that slugs are gone i have half eaten and sad looking plant, and i wonder if it can be saved. There is a photo. No problem with wathering as other petunias grow and bloom great.

I agree with Ken 100%

Milena - I live in slug paradise and I've never known any type of slug pellets 'burn' a plant, nor have I ever known a plant to 'dry out' becasue of slugs. Is the id of the pest absolutely certain? Like Ken, I also notice lots of seed pods on your plants so I would suggest cutting them right back. I'm also wondering about the state of the roots.

Small gray slugs, for sure, at first i removed them by hand, so i had a good look at them. I guess they ate the roots as well, so the plant started dying. They were there there for a while, so they had time to eat all they want. I am noticing seed pots just now as i did cut back, leaving a few healthiest looking steams, so if it starts recovering, great, if it doesn't I'll get rid of it, sadly. Thank you all for your help.

It's just an idea, but you can propagate petunias from cuttings. You would need to exclude slugs from that process, though.

Incidentally, the product named Sluggo is a good safe control for slugs. Its active ingredient is iron phosphate, and whatever the slugs don't eat, the plants can, because plants use both iron and phosphorous.

ZM (not associated with any product mentioned)