This isn't the best picture of my Dauben as the blue shade of the blooms is washed out by the sunlight. I will try and get a better pic in the morning before it is so bright. This is in a grow out tank I have on the roof, I use it to grow starts to give away and a place for the Mollies and Guppies that I give away.
This isn't a bloom but I'm really happy that my 2 red mangrove plants have recovered so well. They were knocked into the pond and several of the branches and roots were broken by one of my cats trying to get out on a log I have in the middle of the pond. I think the offending kitty went swimming
Originally I had one of the plants in the pond on the roof but the water up there gets much hotter, approaching 90°F at times. The mangrove was not happy with either the water temp or the full sun or the shallowness of the pond. It's in a lot deeper water now, about 3.5', much cooler water and only in full sun for part of the day. Whatever it is, it is a lot happier - without the cat however.
You are right, people without ponds are missing a lot of fun, and some really nice blooms.