Kau Silversword, Mauna Loa Silversword
Argyroxiphiumkauense

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Argyroxiphium (ar-gy-roh-ZIF-ee-um)
Species: kauense (kau-EN-see)

Category
Alpines and Rock Gardens

Water Requirements
Very high moisture needs; suitable for bogs and water gardens

Sun Exposure
Full Sun

Foliage

Foliage Color
Bronze

Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Hardiness
USDA Zone 10a: to -1.1 °C (30 °F)

Where to Grow

Danger
N/A

Bloom Color
Red
Pale Yellow
White/Near White

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

Bloom Size

Bloom Time
Late Summer/Early Fall

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)

Patent Information
Non-patented

Propagation Methods
From seed; direct sow outdoors in fall

Seed Collecting
Seed does not store well; sow as soon as possible