Conservatory plants

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I want to make my conservatory less of a hard, white glass box. I've added patterned fabric blinds, a good chair, but it's really missing some green. Are there any plants that can permanently survive in a conservatory with the high temps in summer and low temps in winter?

I don't particularly want to clutter up the window sills, but I was thinking 1 (or 2 if smaller) structural plants on the floor and then perhaps smaller plants in a few hanging pots. I don't have room in the rest of the house to move out anything large in winter (the rest of the house is already full of plants!)

My conservatory is permanent home to Pelargoniums and Zygocactus. The zygocacti would look good in hanging pots. They’re not supposed to be plants for full sun, but my conservatory is fully south facing.

I found that yucca, sansevieria (mother in laws tongue) and rubber plants all did well.

I don't have one now, but when we did it was the ideal home for cacti, they flourished in the warmth in summer and just slept through winter. I'm afraid I had no idea of their names, they were the sort of thing we'd pick up at a fete etc.
I do have a photo of one flowering - it was 50 cm high.

@Ifailed That’s a Mammillaria. Not sure which one.

I’ve got a spider plant, they’re very difficult to kill, and when it goes a bit of an off-ish colour it means it really needs watering! They’d be good in a hanging basket too.

I would guess it’s M. spinosissima, Mere.

Thanks all, loads of good ideas.

I like the idea of a yucca on the floor and then smaller sansievera and spider plants.

I'm not too fond of cacti tbh, although I recognise they would be ideal. I'm hoping to soften the room up a bit (a lot!) and cactii are all a bit hard and spikey

I put a grape vine in. Drilled a hole in conservatory basewall, planted the rootball in the soil outside. Trained up the brick wall that was the exterior house wall before conservatory went on. Grows super fast and yummy grapes.

Photo of grape vine last year (2 years old)