Astragalus Species, Torrey's Milkvetch
Astragaluscalycosus

Synonym:Astragalus brevicaulis

Synonym:Astragalus calycosus var. mancus

Synonym:Astragalus mancus

Synonym:Hamosa calycosa

Synonym:Tragacantha calycosa

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
Succulent

Foliage Color
Bronze

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

Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

Hardiness
USDA Zone 6b: to -20.5 °C (-5 °F)
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)

Where to Grow

Danger

Bloom Color
Blue-Violet

Bloom Characteristics

Bloom Size

Bloom Time
Mid Spring
Late Spring/Early Summer

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)

Patent Information
Non-patented

Propagation Methods
From seed; direct sow outdoors in fall
From seed; direct sow after last frost

Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored