Sure are a lot of wonderful cactus flowers, and their shape and foliage is nothing to sneeze at.
One of my favourite hardy plants my geraniums
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I've been meaning to get back to the geraniums or pelargoniums you mentioned. For those of us in arid regions, they are the most viable subject for a pot that isn't near a water spigot. They can also be attractive as you've shown, some in leave as well as flower.
My favorites are a couple that grow quite tall as they make bigger visual impression. This first one is cultivar called Platinum as uncovered by my neighbor and early gardening buddy Sean who wrote about if for the
bulletin of the California Horticultural society. He took the first photo himself at a yearly garden/studio party we used to host; in it you can see how well it competed with the rose Sally Holmes on the one side of the arch (the rose on the other side is 'Graham Thomas').
The other I leant to him to include. You can see in his first photo ho well this pelargonium competed with that rose in the early going. You can better see all the color in the leaf in this other photo of it. I also prefer its salmon flowers to more gaudy pinks.
Many years later the Sally Holmes rose and the 'Queen of Sheba' Podranea vine that replaced 'Graham Thomas' on the other side have largely taken the high ground out of reach for my Platinum pelargonium but just his past season it was still squeezing in where it could.
Another pinkish colored pelargonium surprised me by how large it got. It started off as a little color near the fountain but was soon large enough to cover it up so I banished it our northwest corner in the shade of our plum tree and a eucalypt. It is huge there now.
In the shade the flowers are much darker too, go figure.
To better appreciate how large it has gotten you'd have to look at this between the 15 second and 30 second mark.
youtu.be/GuwC12MGs0I?si=8WPs-wS-6Bg1RYxT