Plumeria, an ornamental tree commonly found in warm or tropical climates, can grow to a height of 30 feet and produce blossoms in a wide range of colors. While plumeria is often planted from cuttings or small trees that have been rooted, seeds can be collected from pods and planted. Plumeria seeds are not easily available commercially, so gathering your own seeds is recommended.
Collect seeds from a ripened seed pod on your plumeria tree. The pod is ripe when it begins to split along the seam. According to the College of Tropical Agriculture and Human Resources at the University of Hawaii, a 7-inch plumeria seed pod can produce 20 to 60 seeds.
Fill seed trays that are 2 to 3 inches tall with a quality seed starter potting soil. Once the containers are filled, moisten the soil by watering. Be sure the soil is moist but not saturated.
Take the plumeria seed and hold it with the winged end of the seed facing up. Insert the seed, wings up, into the soil with just the wing tips sticking out of the soil.
Pinch the soil against the seed to hold it firmly in place.
Place the seed tray in front of a warm, sunny window. It takes approximately two weeks for the seeds to germinate.
Transplant seedlings to their own individual pots when they form two pairs of leaves. As they grow, transplant to larger pots until you are able to plant the plumeria outdoors.