Potato plants collapsed from rain help!

Hello all, I hope you can help me with my problem. I'm growing potatoes in a potato bag and they have been growing wonderfully, healthy and strong. I covered the shoots up until I reached the top of the bag and they've been busy growing away ever since. But I went out yesterday after heavy rain on Sunday and they've all fallen over. I guess because they were tall and the rain just clattered them down. Now I don't know what to do, leave them and keep watering? Support them? Trim them back so they aren't so heavy?

I'd really appreciate any advice, thank you!

Jess

Potatoes grown conventionally do the same but they just rest on the ground and against each other. If you can prop them up a bit to stop the stems cracking it would help bot don't try to keep them upright. Continue with watering.

Oh thank you everyone that's really reassuring! They definitely aren't ready to dig up, no flowers yet. I'll prop them up and keep going. Thanks so much!

Oh thank you everyone that's really reassuring! They definitely aren't ready to dig up, no flowers yet. I'll prop them up and keep going. Thanks so much!

Its worth noting that not all varietys have flowers.  I havnt had any flowers on my 1st and 2nd earlies but ive deffinately got spuds