Answer: Mandevilla can be repotted when it has outgrown its current pot, as evidenced by roots escaping from the drainage holes of the pot. When this happens, choose a pot slightly larger than the current one and use fresh potting soil. Since mandevillas are vining plants, you may have to prune the tops down prior to repotting in order to be able to easily handle the plant. If this is the case, wait until fall, when the tops would normally be pruned down. Simply lay the pot on its side and gently coax the plant out of the old pot. If the roots are a solid mass (indicating the plant is pot-bound), you can gently tease the roots apart prior to repotting. Use moistened potting soil, placing some in the bottom of the pot and setting the roots in the pot, then add more potting soil around the sides of the root mass. Tamp the soil down and then water thoroughly to help settle the soil. If you work gently and quickly, your mandevilla will hardly know it has been replanted.
Best wishes with your mandevilla!
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