yes...why are you thinking about doing that?

There are reasons to do so but I would not grow in straight perlite unless there is a specific reason to do it. I only use straight perlite for rooting or for plants that have rotted and need TLC and even then it is very temporary. I have added up to 75% of perlite to 25% potting soil for a very fast soil, though.

Rina I was just curious. I know succulents dont need much water so I figured it would work. Just wondering ya know?

Mentha I've done that before too which brought on my train of thought!!!

I think we all get curious about the different ways we can grow plants!

I'm growing a many succulents in pure perlite right now, mostly for rooting larger cuttings and some plant pups. Also using sand + perlite for succulent seedlings, which I find is a great combination.

Under bright light, I find perlite tends to encourage algae a bit, so top dressing is helpful if you go that way.

You do need to fertilize and water more often though, succulents can be very thirsty!

^^^^^^

That too. They will need a lot more water and food plus the algae can be unsightly.