Red Frangipani (Red plumeria) care

Light

Aim for at least 4-6 hours of direct sun on the leaves. Requires at least 6–8 hours of direct sun daily for reliable, prolific flowering. Less light produces fewer blooms and leggier growth. In container culture indoors, place in the brightest south-facing window available or use supplemental grow lights. If your only bright window faces south, that's perfect for red frangipani — same window any aroid would fry on.

Watering

Watering red frangipani: water deeply when the soil is dry to touch (roughly every 7–10 days in summer); withhold almost completely in winter dormancy. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Plumeria has semi-succulent stems that store water; overwatering is the leading cause of root rot and plant death. Let the soil dry noticeably between waterings. In the autumn, gradually reduce watering as leaves drop and stop almost entirely through winter until new growth appears in spring.

Soil and pot

Red Frangipani grows best in coarse, well-drained, slightly acidic loam or cactus mix. Excellent drainage is the single most important soil requirement. Use a cactus and succulent mix, or combine standard potting compost with 30–40% perlite. Ideal pH is 6.0–6.7. Terracotta pots aid drainage and allow soil to dry faster than plastic containers. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Red Frangipani sits happiest at around 40–70% humidity and 18–32°C (65–90°F). Tolerates a range of humidity levels and adapts well to normal household air. In very dry indoor environments during winter dormancy, low humidity is not a concern as the plant has lost its leaves. High humidity combined with cool temperatures and wet soil promotes fungal stem rot. If you keep the room above 18–32°C year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed red frangipani sparingly. Feed monthly from spring through late summer with a phosphorus-rich fertiliser (e.g. 10-30-10 NPK) to promote flowering. Reduce to every 6–8 weeks in early spring as growth resumes; do not feed during winter dormancy. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on red frangipani in the Growli community. Each is annotated with the most common cause so you know where to start.

• Fungal stem or root rot — The most common and serious problem, almost always caused by overwatering in cool conditions; ensure fast-draining soil and withhold water at the first sign of soft, discoloured stem tissue.
• Rust (Coleosporium plumeriae) — Orange pustules appear on the underside of leaves, especially in humid conditions; remove affected leaves, improve air circulation, and treat with a copper-based fungicide.
• Mealybugs and spider mites — Both pests thrive in warm, dry indoor conditions during the growing season; treat with neem oil or insecticidal soap and increase humidity slightly to deter mites.

Propagation

Take 30–45 cm stem tip cuttings in spring or early summer, allow the cut end to dry and callous for 5–7 days before planting in dry, gritty compost. Water sparingly until roots form (6–8 weeks). Seeds can be sown at 24–27°C and germinate in 2–4 weeks, though seedlings may not reproduce the parent's flower colour. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Red Frangipani is mildly toxic to pets. Plumeria rubra belongs to the Apocynaceae family. The milky latex sap contains iridoid and terpenoid compounds that act as mild irritants. Ingestion can cause vomiting, drooling, and diarrhoea in cats and dogs; symptoms are typically mild and self-limiting, but veterinary advice should be sought if a pet chews stems (where sap concentration is highest). Plumeria is not individually listed on the ASPCA database by name, but multiple veterinary sources classify it as mildly toxic given the Apocynaceae family's known irritant profile. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Red Frangipani deep-dive guides

Every aspect of red frangipani care, each with its own calibrated guide:

• Red Frangipani watering schedule
• Red Frangipani light requirements
• Best soil mix for red frangipani
• Red Frangipani fertilizing guide
• When to repot red frangipani
• How to propagate red frangipani
• Red Frangipani growth rate & size
• Red Frangipani cold hardiness
• Red Frangipani temperature & humidity
• Is red frangipani toxic to cats & dogs?
• Is red frangipani toxic to cats?
• Is red frangipani toxic to dogs?

Featured in these plant shortlists

Red Frangipani qualifies for 2 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Best fragrant houseplants — Indoor plants with scented flowers or aromatic foliage — greenery you can smell, selected from our care library.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

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Red Frangipani is also known as Red Frangipani, Red plumeria, Temple tree, and Nosegay.

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