Fireweed, Narrow Leaved Fireweed, Great Willow Herb, Rosebay Willow Herb, Blooming Sally
Chamaenerioncaucasicum

Family: Onagraceae (on-uh-GRAY-see-ee)
Genus: Chamaenerion (kam-ay-NER-ee-on)
Species: caucasicum (kaw-KAS-ee-kum)

Category
Herbs
Perennials

Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage
Herbaceous
Smooth

Foliage Color
Blue-Green

Height
12-18 in. (30-45 cm)

Spacing
3-6 in. (7-15 cm)

Hardiness
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

Danger

Bloom Color
Magenta (pink-purple)

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

Bloom Size

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

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information

Propagation Methods
From seed; direct sow outdoors in fall

Seed Collecting
Bag seedheads to capture ripening seed