Sago palms grow very slowly and can stay in their original pots for a VERY long time. If you're fortunate enough to have a situation like this, There are a couple of things that I would suggest.
• Remove the pups. Those are the plants growing along side of the main plant. No, it's not really hurting the main plant, but most cycad collectors prefer to see the trunk (the caudex), especially on beautiful specimen like this one. Besides, it will give you more plants, for free! Here is how to root sago palm pups for more plants.
• Put it in a slightly larger pot, or plant it in the ground. Either way, be sure to use plenty of free-draining potting soil (the kind sold for cactus) and be sure the location is free draining. That is, if you plant it somewhere, be sure it's on a slight hill, or something like that. These plants like water, but they don't like to stand with their feet wet, as it rots the roots. Take a look at how these plants grow in the wild, they are always in hilly areas, sometimes, on the edges of cliffs!
Sago palms, like all cycads, live for hundreds of years, so you just need to consider yourself a custodian during your short life of maybe 100 years or so. And since they grow so slowly, you will really only need to repot them every fifty years or so.
|Cycads at the Huntington Gardens, Los Angeles|