This should help you out. Look for more by hanzrobo on lithops and other Mesembs by typing in 'lithops' or another genus in the search bar..

Mimicry gone right

I am not an expert on growing Lithops from seed, but I quite like a layer of horticultural sand on top of sifted perlite for Mesembs. The seeds are VERY tiny and easily lost, as April says.

Hanzrobo definitely has a wealth of knowledge!

I think that mix may be too loose. The seeds will just fall through. Anyway they like to be moist.

Thank you all, I'll check that out!

EDIT: Heh, turns out I had already read that thread :)

Jayvee that's what I'm thinking too (and what other people have also hinted), so I was thinking of adding either lots of fine sand OR a combination of fine sand and peat. What do you think?

I find if I soak the soil before sprinkling then the seeds tend to stick to wherever they land and not (mostly) fall too deep

I'm new to lithops, but for the adult plants I think fine sand would be too water-retentive and compacting, wouldn't it?

ez

In the end I've used a mix of lava rock/pumice/zeolite sifted to 2-5mm.

Added fine gravel/sand 1-2mm to the top, wet it all, added the seeds and put on some plastic foil.

1 week later, I've got some tiny seedlings coming out!

Can I take the plastic foil off now? Temperatures are at around 68-70 F (20-21 C)