Someone left a cactus outside my door

About a month ago, someone left a little spiny cactus outside my door. It is called a Mammillaria marksiana.

Mammillaria is a genus of spiny cacti native to Central America’s desert regions, Mexico in particular. Plants generally form clusters of spherical or columnar stems, and flowers. Globe-shaped fresh green stems are produced by Mammillaria marksiana covered in red-brown spines.  In spring, flowers emerge during the day and are bright yellow. It eventually grows into a cluster of stems, but it takes several years for this to happen.

The cactus is currently not growing very well, but I have it on the table that is far away from the window. I have now read that it requires full sun, so I’m going to find a place for it closer to the window, and see if it will flower. We will see what happens, hopefully, it will flower in the spring. It should only be watered from the middle of spring to summer. It should be fed once a month with a special cactus fertilizer. As with all cacti, in climates that are cold in the winter months, it is best grown as a houseplant. However, it can be moved to a sunny outdoor location in mid-summer.

For more information, click below.

https://www.gardenersworld.com/plants/mammillaria-marksiana/