Plumeria
Plumeria rubra 'White Shell'

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
Registered or introduced: 2000
» View all varieties of Plumeria

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

Regional

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

Naples, Florida

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Neutral

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

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 u... read more