Cracks are common in ceramic pots, especially when they're exposed to freezing temperatures. The water in the potting soil can freeze and expand, causing the clay to crack and break. Larger ceramic flower pots can be expensive to replace. If your flower pot has simple cracks with no missing clay pieces, however, you can repair the pot easily using an epoxy glue that dries clear. You can even paint the pot afterward to help conceal any visible cracks.
Clean the cracked areas of the ceramic flower pot with water to remove any dirt. Allow the ceramic pot to dry.
Run a bead of epoxy glue along the crack in the ceramic pot, ensuring that the glue covers the entire crack. Repeat for any other cracks.
Smooth out any oozing or dripping glue from around the cracks on the sides and bottom of the ceramic pot with the edge of a small piece of cardboard.
Secure the ceramic pot with clamps to keep cracks held together snugly until the epoxy glue dries.