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PlantFiles: Plumeria
Plumeria rubra 'White Shell'

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Family: Apocynaceae (a-pos-ih-NAY-see-ee) (Info)
Genus: Plumeria (ploo-MEER-ee-a) (Info)
Species: rubra (ROO-bruh) (Info)
Cultivar: White Shell
Hybridized by Stokes Tropicals; Year of Registration or Introduction: 2000

» View all varieties of Plumeria

2 members have or want this plant for trade.

Category:
Trees
Tropicals and Tender Perennials

Height:
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)

Spacing:
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)

Hardiness:
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

Danger:
N/A

Bloom Color:
Red
White/Near White

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

Foliage:
Deciduous
Smooth-Textured
Shiny/Glossy-Textured
Veined
Leathery-Textured

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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Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral twistedparrot On Jan 12, 2006, twistedparrot from Galveston Island, TX (Zone 9b) wrote:

White Shell, and most of the other shell types (with the exception of Texas Lantern), do NOT retain the characteristic shell shape in extreme heat. In Southeast Texas, where summer temps routinely top 100 degrees and humidity hovers in the 80-percent range, the blooms "flatten out" quickly after opening. They're still delightful flowers with wonderful fragrances, but bear in mind their form may disappoint if that's the primary reason you want one.

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

‘White Shell’

Flower white with strong red bands on back
Petal narrow, round tip, partially unfurled (only back of Petal shows); strong red band on back; good texture
Size one inch in diameter (partially unfurled bud)
Scent strong sweet fragrance
Stalk greenish-red, smooth, thin, pendent, loose flower clusters
Keeping quality very good
Leaves light green with acute tips
Plant habit upright, dense branching; suitable for landscaping
Bearing habit March to October, moderate flower production
Parentage unknown hybrid origin
Remarks The flowers remain partially unfurled, resembling seashells. This cultivar is recommended for home gardens.

Regional...

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

Naples, Florida



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