Answer: Cactus are so slow growing that they can remain in the same container for years and years. If the cactus is outgrowing the pot, or if it looks top heavy, you can replant it. Put it in the next size pot so the roots have a little more room, but not a great deal of new room. Be sure to use cactus mix or a mixture of sand and gravel when you transplant. Best wishes with your cactus!
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