Paeonia veitchii 'Alba' - 2020

I like that very much.
I've been trying to find a P. obovata alba with no luck. I foolishly left mine behind when we moved house. I am resorting to trying to get some seed to germinate but don't expect to have much luck with them.

Anget,
There are two nurseries in the UK that sometimes have it, both of which I can recommend

Kevock Nursery in Scotland have a waiting list:
https://www.kevockgarden.co.uk/plantlist/plant.asp?SKU=QOA&PlantName=Paeonia_obovata_var._alba&PlantorBulb=Plants

Edrom Nursery have "next crop in production"
https://www.edrom-nurseries.co.uk/shop/pc/Paeonia-obovata-alba-p8497.htm

Thank you Andrew, that's very helpful.
Edrom is new to me.

I am waiting for Kevock to let me buy one. its on my 'back order'.

Just ordered 3 new plants from Edrom. Oh dear, I can't afford a bigger garden... My OH despairs.