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Siam Red

Colors
YellowOrangePurpleRed

Description

A classic Thai plumeria producing 2.5 to 3.5-inch red to red-orange sunset-toned flowers with deep yellow to gold centers. Petals are oval, strongly overlapping, of heavy, almost waxy substance and velvety appearance dusted with gold toward the center. Compared to Siam Ruby, petals are more pointed but broader. Flowers pass through several color stages as they age, developing a mosaic look that fades toward purple. Produces very large inflorescences on tall, upright trees with well-branched plants and long bloom season; described variously as sweetly scented (plumeria scent) or as very light or non-fragrant. Not cold tolerant and difficult to root; not a prolific bloomer but flower spikes are long-lasting. Sets seed. Associated with seedlings named Daeng Sayem, Dang Sayem, and Siam Red #2.

Appearance

Deep red to red-orange flowers with a deep yellow/gold center dusted with small sparkles; 2.5 to 3.5 inches, in sunset-red star shape. Petals are oval, strongly overlapping, thick, velvety, and of heavy substance; more pointed but broader than Siam Ruby.

Bloom

Very large inflorescences in huge clusters; long-lasting bloom spikes; long bloom season. Flowers pass through several color stages as they age, taking on a mosaic look fading toward purple.

Fragrance

Reported variously as very sweetly scented with a plumeria fragrance, at least medium strength, or as very light or non-fragrant.

Growth & Foliage

Upright, tall, medium-sized tree with large bloom heads; well-branched and compact in some plants.

Cultivation Tips

Not cold tolerant. Difficult to root. Not a prolific bloomer. Cooler weather enhances brighter colors. Sets seed.

Provenance

Old Thai favorite from Thailand; short plants with huge inflorescences observed at Thai markets.

Also Known As

Details

Growth Habit
medium
Species
P. rubra
Sets Seed
Yes
Source
Thai
PSA #
2
Size (in)
2.5-3
Fragrance Strength
sweetly, least medium strength

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Quick Facts

Size2.5-3"
Fragrancesweetly, least medium strength
Colors4