Plant Kalanchoe tubiflora in a pot that is at least two-thirds larger than the diameter of the plant. Use well-drained soil, such as a mix of sand and small pebbles or cactus potting soil. Place the Kalanchoe deep enough that the roots and about one-fifth of the plant are covered.
Water regularly, whenever the soil is dry to the touch. Do not water more frequently, since Kalanchoe roots are sensitive to rot. Kalanchoe plants can tolerate drought, so it is better to let the soil get a little too dry than to water too often, if in doubt.
Remove any dead leaves or flowers by pinching them off by hand. This will allow the plant to focus its energy on growth.
Place the plant in a sunny location, either indoors or outdoors. If placed indoors, make sure that it is not in direct sunlight.
Remove and plant or discard any baby plants that drop off the ends of leaves. Too many plants crowded in a single pot will compete with each other and inhibit the growth of all the Kalanchoe tubiflora plants.
Re-pot the plant in late summer or early fall, or around mid-August in many areas. Use a larger pot to accommodate growth, again choosing a pot that is at least two-thirds larger than the plant, and using well-drained soil.
Move the Kalanchoe indoors as soon as temperatures begin to drop. The entire plant can be quickly killed by freezing temperatures.
Place the plant back outdoors in the spring, when temperatures have warmed and there is no chance that they will drop back below freezing.