Costus, Kuth
Saussureacostus

Synonym:Saussurea lappa

Synonym:Aucklandia costus

Synonym:Aplotaxis lappa

Category
Vegetables
Herbs
Perennials

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Sun to Partial Shade
Light Shade

Foliage
Herbaceous
Shiny/Glossy

Foliage Color

Height
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)

Spacing
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

Hardiness
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
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)

Where to Grow
Can be grown as an annual

Danger
N/A

Bloom Color
Blue-Violet
Lavender
Medium Purple

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Mid Summer

Other details

Soil pH requirements

Patent Information

Propagation Methods
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting