Flowering Mammillaria meiacantha

I've had a few Mammillaria meiacantha plants (SB 249; Bernalillo County, New Mexico) growing in my cold house for the last couple of years. The plants thrive and last spring they embarked on a flowering spree.


Mammillaria meiacantha flower

One of the traits Steve Brack mentions for these plants in his seed catalogue are their huge red fruits, so I hope I succeeded in pollinating the flowers and will see some fruits soon.


Flowering Mammillaria meiacantha

I bought these plants for my unheated greenhouse because of their extreme cold tolerance. Steve Brack classifies Mammillaria meiacantha as being safe easily to -10F (-23C). So these plants, if any, ought to be able to survive the cold snap that has engulfed Denmark in snow and almost constant (severe) frost for more than two months now.

Mammillaria meiacantha is also known as Mammillaria heyderi v. meiacantha.