Plant for ID please

daisym

I think these plants are all the same type. They have been in these pots for over ten years with no attention. They die down completely at the end of the summer and new shoots appear at the start of April. They have never flowered. I would be glad of any help in identifying what they are. With thanks!

AnniD

Peonies, l think 

Hostafan1

they look like paeonias. 
Maybe planted too deeply which might account for the lack of flowers

daisym

@AnniD @Hostafan1 Thank you. What is it best to do? Shall I repot in the same pots, only much shallower, or in smaller pots? Unfortunately, I have no space in the ground at the moment as they are such big plants.

Hostafan1

@Fairygirl knows more about them than I, hopefully she'll come along soon.

Busy-Lizzie

Peonies are OK in pots to start with but then they really need more room and they have quite big roots and can grow into large plants. They either need re-potting into bigger pots or, better, planting into the ground. Have you ever fed them? They will have exhausted any fertility in those pots by now. When you plant them, plant them shallowly, as said above they don't like to be planted deeply.

AnniD

Not much more to add to what has already been said really .
If you can get them in the ground that would really be for the best , in full sun  and definitely shallow planted.
Some more info here
https://www.gardenersworld.com/how-to/grow-plants/how-to-grow-peonies/

daisym

Thank you @Busy-Lizzie @AnniD. The only ground I can make available is against an East facing fence, but they are such lovely plants it might be worth it. No, they have never been fed - life got in the way at the time I first got them! Thanks for the link and
your help.