As succulent plants, Jade plants store water in their roots, stems and leaves. These plants, members of the Crassula family, prefer full-strength sunlight. But if they have been living in a shadier environment, move them into the sunlight slowly or they plant may get sunburned. Care for the jade plant by re-potting it every few years, moving the the plant to a slightly larger pot each time.
Choose a new pot for your jade plant with a drainage hole at the bottom. Spread a few stones or broken pieces of pottery over the hole to increase drainage and keep the soil from washing out of the bottom of the pot.
Mix 1 part commercial potting soil mixed 1 part coarse sand. Mix a couple of tablespoons of bone meal into the soil for added nutrient value. Fill the new pot a quarter-full with the mixture.
Remove the jade plant from its old pot. Place it in the new pot, moving the soil until the previous soil level of the plant is 1 inch from the top of the pot. Add soil around the sides of the plant until the pot is filled 1 inch from the top. Press the soil with your fingers to remove any air pockets and compact it.
Soak the plant until water drains out of the bottom of the pot. Let the soil dry out completely before watering again. From that point on, give it a thorough watering about once a week. Keep the plant a bit drier during the dormant cycle, November through March. A mild watering of a cup or two of water, depending on the pot size, about once a month is all that is required during the dormant cycle.
Fertilize the jade plant during its growing season, April through October. Use a high-phosphorus fertilizer, such as 10-20-10. Do not feed the plant during its dormant cycle.
Move your jade plant to a location that does not receive nighttime lighting as it goes into dormancy. It should still, however, receive good natural light during the daytime hours. Air temperature should not drop below 40 degrees F or go above 80 degrees F. Expect the plant to bloom towards the end of December.