Gymnocalycium triacanthum (15 seeds)

Gymnocalycium triacanthum is a small single headed, flattened cactus, with peculiar grey bodies with short adpressed spines in clusters of three. It is one of the several species of the variable Gymnocalycium bodenbenderianum complex, however it is hard to tell it apart from the three spined "bodenbenderianum", and most authors choose to lump them together.
It is a geophyte stem succulent plant usually solitary and barely rising above ground level with a swollen underground root system.

All seeds are fresh of this season and obtained from my personal collection.

NOTE: cactus seeds could be sown in any season under control environment, however if you wanna go with nature then best time to sow the seeds is early spring/summer )

(check my collection at https://www.instagram.com/planetcactus