My experiment with cross-pollinating my Astrophytum ornatum and Astrophytum coahuilense kind of worked. I used a cotton swab to collect pollen from both flowers and rubbed it on the middle part of both stigmas. Then it was just a waiting game, hoping the flowers didn’t just pop off, like they do when they haven’t been pollinated.
A couple of days later, the flower dried up and fell off my Astrophytum coahuilense. But the one on my Astrophytum ornatum seemed to stick around. I noticed that the bottom of the flower kept swelling up, too. I think my experiment was a success! Mostly.
Now.. I don’t actually know if a cross between a coahuilense and ornatum is a thing. Or even if the seeds would be viable. I’ll make sure to take pictures of the seeds and my attempt to germinate them. Wouldn’t it be awesome if the result was a heavily fluffy and spiny cactus?