Germinating Lithops seed is easy. Sow the seed during the warmer summer months when it will germinate quickly. The seedlings are very small for a long time, so the quicker they can start to grow the better.
Sow the seed evenly in sandy free-draining soil with little or no organic matter in it, and cover with a very thin layer of fine sand. This layer acts to support the young seedling after germination.
With such fine seed, it is best to water with a very fine spray or you can dunk the pot into a shallow tray of water to allow capillary action to moisten the whole soil column without disturbing the seeds.
Keep the seed pots in a warm bright place, and cover with a sheet of glass or cling wrap to keep the humidity high until the seeds germinate
Take the cover off and shake off any large drops of condensation to prevent rotting.
Protect from mice and other vermin, which find the succulent little seedlings hard to resist - I use salvaged bird cages or gerbil cages, and cover the plant pots with those.
Once the seeds germinate, within three weeks, the seedlings will develop into tiny copies of their parents, although their true colours won稚 show for a few months to a year. After the seeds germinate, don稚 water from below as this can rot the tiny roots.
Once the seedlings are a few months old allow them to dry out between waterings, and this will make them search out deeper layers of soil to obtain moisture.
Transplant the tiny plants once they池e big enough to handle at around a year old, and expect to see them start to bloom in turn at about three to four years.
Sometimes some of the seeds won稚 germinate right away, and seedlings emerge a long time later. This is important as you shouldn稚 discard the seed pots until you know for sure that all the seed has germinated.