While repotting these three babies, I realized how massive they have become. It really took them a while to start growing, but now I’m not so worried about them.
These were actually my first ever attempt at growing cacti from seeds. And it didn’t go well. Most of the seeds germinated and I ended up with just about 50 seedlings, but all but these three died from damping off. This is apparently a common problem with Astrophytum seedlings, especially Astrophytum myriostigma.
But look at my three remaining plants now!