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Plumerias need a site that has full sunlight or at least morning or afternoon sun. They can be grown in a pot outside or inside, as long as the temperatures are between 60 to 90 degrees.
They need soil that is fast-draining. Plumeria Treasure explains, "The easiest way to create an effective mix is to mix up 50% regular soil and 50% sand. Even better is 1/3 soil, 1/3 sand and 1/3 perilite." Using a cactus soil mixture purchased from a nursery is also recommended. -
Fill a container with the soil mixture and add water until it drains out of the bottom of the container. Insert the plumeria 2 to 3 inches into the soil. Plumeria Treasures suggests inserting the plumeria cutting into rooting hormone to help speed the rooting. Water the plumeria to settle the soil and remove air pockets.
Place the container in a sunny spot. During the rooting period, allow the soil to dry out before watering. Constant wet soil can cause the cutting to rot. -
New leaves growing are a sign that the plumeria has formed roots. At this point, you can begin watering a bit more frequently, but still allow the soil to dry out some in between waterings.
If the cutting was started in a small container, after the plumeria is established, it can be transplanted to a larger one. Feed the plumeria twice a month with a high phosphorus plant food. Continue feeding it until September.
Plumeria Treasures explains that the plant begin to go dormant when the temperatures drop below 50 degrees. They recommend bringing the plant inside and reducing the frequency of watering around October. After this, do not water the dormant plant.
When the temperatures warm again in the spring, Tea Nursery explains that plumerias do not like to be root bound and recommends repotting it each spring.
