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PlantFiles: Plumeria
Plumeria rubra 'Irma Bryan'

Family: Apocynaceae (a-pos-ih-NAY-see-ee) (Info)
Genus: Plumeria (ploo-MEER-ee-a) (Info)
Species: rubra (ROO-bruh) (Info)
Cultivar: Irma Bryan

» View all varieties of Plumeria

2 members have or want this plant for trade.

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Tropicals and Tender Perennials

6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)

4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)

USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Sun Exposure:
Full Sun
Sun to Partial Shade


Bloom Color:
Gold (Yellow-Orange)

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter


Other details:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater
Flowers are good for cutting
Suitable for growing in containers

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
From woody stem cuttings
From softwood cuttings
From semi-hardwood cuttings
From hardwood cuttings
Allow cut surface to callous over before planting
From seed; sow indoors before last frost
From seed; germinate in a damp paper towel
By grafting
By air layering

Seed Collecting:
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds
Seed does not store well; sow as soon as possible
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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By vossner
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By Clare_CA
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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive Clare_CA On Dec 8, 2005, Clare_CA from (Zone 10b) wrote:

From the publication:

Plumeria in Hawaii

By Richard A. Criley
Department of Plant and Soil Sciences
College of Tropical Agriculture and Human Resources
University of Hawaii at Manoa
January, 2005

‘Irma Bryan’

Flower moderate strong red with small, pale orange-yellow center
Petal wide, elliptical, pointed tip, moderately overlapping, slightly wavy edges; moderate reddish-brown bands on front and back; fair texture
Size two-and-one-half inches in diameter
Scent slight spicy, becoming stronger on storage
Stalk dark red, hairy, upright, tight flower clusters
Keeping quality fair
Leaves green with dark red anthocyanin, acute tips
Plant habit upright, dense branching; suitable for landscaping
Bearing habit April to September, light to moderate flower production
Parentage P. rubra f. rubra
Remarks Trees are similar in growth habit to ‘Scott Pratt’ and are the earliest to flower of the red plumerias.

Positive vossner On Jul 14, 2005, vossner from Richmond, TX (Zone 9a) wrote:

Bought a cutting in Spring 2005 and was positively delighted when it bloomed in July. Applied granular fertilizer as well as a weekly diluted version of fert. for flowering tropicals. This is an outstanding red.


This plant has been said to grow in the following regions:

Saint Petersburg, Florida
Richmond, Texas

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