It took me quite a while to get an ID on this waterlily. It's a night flowerer with the flowers sometimes staying open to midday when it's overcast. The flowers are pretty large, they only last a few days. They seem to multiply rapidly but not sure whether it's from seed. Although, there are many small plants looking more like seedlings. It's a cultivar called Nymphaea 'H.C.Haarstick' and is apparently a cross between Nymphaea 'Mrs D.R.Francis' and an unknown plant back in 1922.
Last winter I put them out into a large tub while I was planning some work on the pond they were in. However "
The best made schemes of mice and men" intervened and the waterlilies overcrowded the tub. When the wet season rains came and my swamp filled I put a lot of them in a deeper pool there. Unfortunately there were still some Magpie Geese around. One of the main foods of these geese is waterlily tubers. They practically cleaned them right out in one day. A couple of smaller plants survived. But there were still some larger tubers in the tub. These are now flowering. The pool in the swamp would have looked nice with several flowering plants. Oh well, that's how it goes. Gardening is full of surprises.
The original pond they were in
The tub they were placed in.
One of the survivors in the pool in the swamp.