Mammillaria for the most part tend to be easy growing cacti.
Some of course have taproots and other features that make the difficult to grow.
The most difficult one being mammillaria senilis, and some with taproots like saboae and theresae.
Probably the most interesting photos of my mammillarias right now...that i have on my PC
Include heyderii fruits, and vetula and decipiens flowers..
The last one, is from winter. Now with full time summer exposure, it began letting out black central spines(which i find pretty cool). I almost never see it with such black spines in sale.
The decipiens still had buds the last time i checked..
I noticed that it filled the pot quite nicely after a year in my care..
What surprised me (negatively) was the lack of flowers on the heyderii this year.
I did see it bloom before buying it. It did have blooms like m.heyderii haemispherica as the internet ID. But nothing from august last year till now. Only began popping out fruits like crazy. I grew a bit of seed...but couldnt keep harvesting it long term... Who knows. One of those things might germinate naturally...
