Unless you're really good about monitoring the amount of water a houseplant gets, then yes. My Hatiora is currently in a ceramic pot with no drain hole (it's been in this pot for almost 2 years now) & I'm going to repot into 1 with drain holes very soon. It's growing & needs a bigger pot so it can become a beautiful specimen. Note: When it comes to landscape plants, pots with drain holes are a necessity. This DIY succulent & cactus mix is light & chunky. My succulents love it!