HelpfulGardener.com

Hey everyone!

I have an issue with my Mammillaria Elongata Cactus. I've had this cactus for about a month and it's started to turn yellow. I have this cactus by the windowsill and water is once a week.

Please help!

You should perhaps be checking if it needs water. Plants should be watered based on need not time. No saucers.