Hymenoxys Species, Graylocks Four-Nerve Daisy, Graylocks Rubberweed, Old Man of the Mountain
Hymenoxysgrandiflora

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Hymenoxys (hy-men-OKS-iss)
Species: grandiflora (gran-dih-FLOR-uh)

Synonym:Actinea grandiflora

Synonym:Tetraneuris grandiflora

Category
Alpines and Rock Gardens
Perennials

Water Requirements

Sun Exposure
Full Sun

Foliage
Herbaceous
Good Fall Color
Succulent

Foliage Color

Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)

Spacing
6-9 in. (15-22 cm)
9-12 in. (22-30 cm)

Hardiness
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)

Where to Grow

Danger

Bloom Color
Bright Yellow

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

Other details

Soil pH requirements

Patent Information
Non-patented

Propagation Methods

Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry