Frangipani
Plumeria Rubra
Plumeria rubra, commonly known as Frangipani or Temple Tree, is cherished for its stunning flowers and delightful fragrance. Native to tropical regions, it adds a touch of paradise to gardens and patios, making it a popular choice for enthusiasts.
Everything it needs
9 essentials at a glance
Watering
Plumeria rubra prefers to dry out between waterings.
Water thoroughly when the top 1-2 inches of soil are dry, typically every 1-2 weeks during the growing season (spring and summer). In fall and winter, reduce watering to once every 3-4 weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering can cause leaf drop and wilting.
Light
This plant thrives in full sun, requiring at least 6-8 hours of direct sunlight daily.
Ideal placement is in a south or west-facing garden or patio. Plumeria can tolerate partial shade but may not bloom as profusely. Ensure it receives bright light, especially during the growing season.
Soil
Plumeria prefers well-draining soil with a pH range of 6.0 to 7.0.
A mix of potting soil, sand, and perlite or cactus mix is recommended to ensure proper drainage. Avoid heavy soils that retain moisture, as this can lead to root rot.
Humidity
This plant enjoys moderate humidity levels, ideally around 40-60%.
To increase humidity, mist the leaves or place a humidity tray filled with water near the plant. Signs of low humidity stress include leaf curling and browning leaf tips.
Temperature
Plumeria rubra thrives in temperatures between 65-85°F (18-29°C).
It is hardy in zones 9-11 but can be grown as an annual in cooler areas. Protect from frost, as temperatures below 30°F (-1°C) can damage the plant.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 or a fertilizer formulated for flowering plants.
Fertilize every 4-6 weeks during the growing season and reduce frequency in fall and winter. Signs of nutrient deficiency include yellowing leaves and poor growth.
Pruning
Prune Plumeria in late winter or early spring before new growth begins.
Use sharp, clean pruning shears to remove dead or damaged branches and shape the plant. Deadheading spent flowers encourages new blooms. Be cautious of the sap, which can be irritating.
Repotting
Repot Plumeria every 2-3 years or when it becomes root-bound.
Choose a pot that is 1-2 inches larger in diameter. Signs it needs repotting include roots growing out of the drainage holes or stunted growth. When repotting, gently remove the plant from its pot, trim any damaged roots, and place it in fresh soil.
Propagation
Propagation can be done through stem cuttings or seeds.
For stem cuttings, take a 12-inch cutting from a healthy plant, allow it to dry for a few days to callous, then plant it in well-draining soil. Water sparingly until new growth appears. The best time for propagation is in spring or early summer.
When it's unhappy
Yellow leaves
Why it happens
Yellow leaves can indicate over-watering or nutrient deficiency.
How to fix it
Check soil moisture levels and reduce watering if necessary. Fertilize with a balanced fertilizer to address nutrient deficiency.
Leaf drop
Why it happens
Leaf drop can occur due to under-watering or sudden temperature changes.
How to fix it
Ensure consistent watering and protect the plant from extreme temperature fluctuations.
Root rot
Why it happens
Root rot is caused by over-watering and poorly draining soil.
How to fix it
Allow the soil to dry out completely before watering again and consider repotting in fresh, well-draining soil.
Pests (aphids, spider mites)
Why it happens
Pests can infest the plant, especially in dry conditions.
How to fix it
Regularly inspect the plant and treat infestations with insecticidal soap or neem oil.
Poor flowering
Why it happens
Insufficient light or lack of nutrients can lead to poor flowering.
How to fix it
Ensure the plant receives adequate sunlight and fertilize regularly during the growing season.
Care through the year
Spring
In spring, begin regular watering and fertilizing as the plant enters its active growth phase. Prune any dead or damaged branches to encourage new growth.
Summer
During summer, ensure the plant receives full sun and water regularly as it thrives in warm temperatures. Monitor for pests and treat as necessary.
Fall
In fall, gradually reduce watering as the plant prepares for dormancy. Continue to fertilize until late fall, then stop feeding as temperatures drop.
Winter
In winter, protect Plumeria from frost and cold temperatures. Water sparingly, allowing the soil to dry out completely between waterings.
Toxicity & Safety
Plumeria rubra is mildly toxic to pets and humans. The sap can cause skin irritation, and ingestion may lead to nausea or vomiting. Keep away from pets and children.
Good to know
Why are my Plumeria leaves turning yellow?
Yellowing leaves on Plumeria can indicate over-watering or a nutrient deficiency. Check the soil moisture and adjust your watering schedule accordingly.
How often should I water my Plumeria?
Water your Plumeria every 1-2 weeks during the growing season, allowing the top 1-2 inches of soil to dry out between waterings. Reduce frequency in fall and winter.
What type of soil is best for Plumeria?
Plumeria thrives in well-draining soil with a pH of 6.0 to 7.0. A mix of potting soil, sand, and perlite or cactus mix is ideal for healthy growth.
When is the best time to prune Plumeria?
The best time to prune Plumeria is in late winter or early spring before new growth begins. This helps shape the plant and encourages blooming.
How can I propagate Plumeria?
Plumeria can be propagated through stem cuttings. Take a healthy cutting, let it callous for a few days, then plant it in well-draining soil and water sparingly until new growth appears.
Is Plumeria toxic to pets?
Yes, Plumeria rubra is mildly toxic to pets. The sap can cause skin irritation, and ingestion may lead to nausea or vomiting. Keep it out of reach of pets.
What should I do if my Plumeria isn't blooming?
If your Plumeria isn't blooming, ensure it receives at least 6-8 hours of direct sunlight daily and consider fertilizing with a balanced fertilizer during the growing season.
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