How to Plant Plumeria Flowers

Buy a plumeria cutting from a nursery, and check the cutting's cultivar to ensure it has the characteristics you desire. A plumeria cutting is typically the tip of an actively growing stem and is a few inches in length.

Select a planting site for plumeria in full sun. This plant can only grow outside in areas that never experience freezing temperatures, meaning that plumeria is hardy in U.S. Department of Agriculture hardiness zones 10 and up. Plumeria plants can also grow well in a large planting pot.

Fill the planting site with a sandy potting mix. The cutting requires a light growing medium with good drainage to get started, although the mature plant is tolerant of a range of soil types.

Place a plumeria cutting in the planting site so that half the length of the cutting is below the surface of the soil. Plant several cuttings to ensure at least one cutting will grow in each location. Remove the weaker plants as they grow to achieve a final spacing of about 15 feet between mature plumeria trees.

Water plumeria plants with at least 1 inch of water per week during the growing season. Discontinue watering if the plant goes dormant, which generally occurs when the temperature falls below 50 degrees Fahrenheit.

Place a plumeria in a container outside in full sun when the temperature stays above 55 degrees Fahrenheit. Take the plant back inside before the temperature falls below this temperature.