Plumeria Varieties — Species & Cultivar Guide

Rubra vs. Obtusa — fundamentally different plants

Most of the plumeria debate about care and overwintering comes from growers treating these two species identically. They require meaningfully different approaches.

Plumeria rubra — the deciduous species

Native to Mexico, Central America, and Venezuela. Deciduous — it drops its leaves annually as a natural response to seasonal changes in temperature and day length. In Zone 6, this deciduous habit is an advantage: the plant prepares for dormancy naturally, and bare-branch overwintering storage is straightforward and reliable.

The vast majority of cultivated plumeria, including most named collector varieties, are P. rubra or rubra hybrids. Flower color is extraordinarily diverse — white, yellow, pink, red, coral, lavender, multicolor — and fragrance ranges from intense to nearly absent depending on cultivar. The deciduous habit and wide cultural tolerance make rubra the right species for cold-climate container growing from Zone 5 upward.

Plumeria obtusa — the evergreen species

Native to the Bahamas, Caribbean, and northern South America. Evergreen — it holds its leaves year-round in suitable conditions and does not want to go dormant. This creates a significant challenge for Zone 6 growers: without natural dormancy induction, obtusa must be kept growing year-round indoors through winter, which requires substantial light and careful watering management.

The Singapore plumeria sold widely at garden centers is usually obtusa or an obtusa hybrid. The flowers are typically white with a yellow center, strongly fragrant, and continuously produced through the growing season. Beautiful plant — but harder to manage in cold climates than rubra. Zone 5–7 growers should understand the commitment before choosing obtusa as their primary species.

Rubra vs. Obtusa

DeciduousRubra ✓ / Obtusa ✗

Cold-climate easeRubra easier / Obtusa harder

Flower diversityRubra — hundreds of cultivars

FragranceBoth — varies by cultivar

OverwinteringRubra — bare branch storage

Zone 6 recommendationRubra — primary choice

For Zone 6 growers

Start with P. rubra cultivars
Choose varieties with documented cold-climate performance
Obtain as named cultivars — not generic "plumeria"
Fragrance intensity varies widely — smell before buying
P. obtusa possible but requires year-round indoor management

All Plumeria species in cultivation

Beyond rubra and obtusa, several additional species are grown by collectors. Each has distinct requirements and characteristics.

Plumeria rubraCommon Frangipani · Deciduous Plumeria

Zone 5+ ContainerDeciduous

Fragrance:

The workhorse of plumeria cultivation. Extraordinary flower diversity — from single-color whites and yellows to complex multicolor blends — produced through intensive breeding by collectors worldwide, particularly in Thailand and Hawaii. Deciduous habit makes cold-climate management straightforward.

Hundreds of named cultivars. For Zone 6 growers, prioritize cultivars with documented bloom performance in container culture rather than in-ground tropical specimens — bloom timing and vigor can differ significantly between these growing situations.

Plumeria obtusaSingapore Plumeria · Evergreen Frangipani

EvergreenZone 9+ Outdoor

Fragrance:

Strongly fragrant — often more intensely scented than rubra cultivars. White flowers with yellow centers, continuously produced through the growing season. Evergreen in suitable conditions; holds leaves year-round in Zone 9 and warmer.

In Zone 6, obtusa must be managed as an indoor plant through winter without allowing full dormancy. Requires a minimum 6–8 hours of supplemental light through winter months to maintain health. More demanding than rubra for cold-climate growers but the fragrance intensity is worth the effort for those committed to the management.

Plumeria albaWhite Frangipani · West Indian Jasmine

Deciduous

Fragrance:

Native to the Caribbean — Puerto Rico, Lesser Antilles. Pure white flowers with a yellow center and extremely intense fragrance, often described as the most powerfully scented Plumeria species. Narrower leaves than rubra. Deciduous.

Less common in cultivation than rubra but worth seeking for the fragrance alone. Manageable in Zone 6 container culture with the same overwintering approach used for deciduous rubra.

Plumeria pudicaBridal Bouquet · Fiddle-Leaf Plumeria

Semi-Evergreen

Fragrance:

Distinctive fiddle or spatula-shaped leaves unlike any other Plumeria species. White flowers, lightly fragrant. Semi-evergreen — holds some foliage through mild winters but drops leaves in cold conditions. Compact growth habit relative to rubra.

Unique enough to be worth growing for the foliage character alone. Manageable in Zone 6 but benefits from more careful overwintering than deciduous rubra — prefers not to go fully dormant if avoidable.

Collector Fragrance CultivarsNamed P. rubra selections

CollectorHigh Fragrance

Fragrance:

The plumeria collector world rates fragrance on par with flower form. Named cultivars with documented fragrance intensity include varieties selected specifically for this trait — 'Celadine', 'Scott Pratt', 'Guillot's Sunset', and others developed by dedicated collectors in Hawaii and Florida.

For Zone 6 container growers, fragrance-selected cultivars perform best when the outdoor season includes several weeks of daytime temperatures above 80°F — below that threshold, many high-fragrance cultivars produce reduced scent. Plan the outdoor position accordingly.

Thai HybridsMulti-color & Rare Selections

Collector

Fragrance:

Thailand's plumeria breeding community has developed extraordinary multicolor selections — swirled, striped, and gradient flowers in color combinations unavailable in standard rubra cultivars. Some Thai hybrids incorporate multiple species in their backgrounds.

Cold-climate viability varies. As with Thai Adenium lines, the parentage of the hybrid determines cold tolerance. Zone 6 growers should request parentage documentation when purchasing Thai plumeria and favor rubra-dominant lines for the most reliable container performance.

Varieties & Species

Rubra vs. Obtusa — fundamentally different plants

Plumeria rubra — the deciduous species

Plumeria obtusa — the evergreen species

All Plumeria species in cultivation