Ugh…I hate hail. The good news is that plants never give up nor should you. Trim any broken stems off so they have nice clean cuts and be patient. The root system isn’t damaged and I think you’ll be surprised to see how quickly new growth starts. Once you see fresh growth starting, you could give the soil a good soak with a soluble food like Miracle-Gro but other than that, all they need is time and your patience.