Many people have used the same pot to grow Kalanchoe Delagoensis Chandelier Plant. It worked well. However, if you have String of Pearls that have been in the same potting mixture for over a decade, it is possible that nutrients in the soil have already leaked out due to all the watering. I, for one, have been guilty of neglecting this important plant and not paying enough attention to my String of Pearls. Sunburn or sun damage is the main reason String of Bananas go brown. String of Pearls are less mature and require more water than mature plants.