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PlantFiles: Ginger
Costus dubius

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Family: Costaceae
Genus: Costus (KOS-tus) (Info)
Species: dubius (DOO-bee-us) (Info)

Synonym:Costus trachyphyllus
Synonym:Costus edulis
Synonym:Costus albus

2 members have or want this plant for trade.

Category:
Perennials
Tropicals and Tender Perennials

Height:
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)

Spacing:
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

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:
Sun to Partial Shade
Light Shade

Danger:
N/A

Bloom Color:
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Herbaceous
Leathery-Textured

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Non-patented

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings
Allow cut surface to callous over before planting

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Seed does not store well; sow as soon as possible

Click thumbnail
to view:

By Kalpavriksha
Thumbnail #1 of Costus dubius by Kalpavriksha

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive MotherNature4 On Nov 23, 2008, MotherNature4 from Bartow, FL (Zone 9a) wrote:

C. dubius form large clusters of 6 ft. canes. The fleshy flowers are white with yellow splashes. They are not common in cultivation.

Regional...

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

Sarasota, Florida
Thomasville, Georgia



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