Asclepias Species, Clasping Milkweed, Bluntleaf Milkweed

Asclepiasamplexicaulis

Family
Apocynaceae (a-pos-ih-NAY-see-ee)
Genus
Asclepias (ass-KLE-pee-us)
Species
amplexicaulis (am-pleks-ih-KAW-liss)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
24-36 in. (60-90 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)
USDA Zone 6a: to -23.3 °C (-10 °F)
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)
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)
Danger
Parts of plant are poisonous if ingested
Bloom Color
Pale Pink
Pale Green
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Bartow, Florida

Vero Beach, Florida

Iowa City, Iowa

Sturgis, Mississippi

Saint Louis, Missouri

Andover, New Hampshire

Franklin, North Carolina

Fuquay Varina, North Carolina

Stoneville, North Carolina

Coatesville, Pennsylvania

Wilkes Barre, Pennsylvania

Burns, Tennessee

Dickson, Tennessee

Los Fresnos, Texas

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Gardener's Notes:

2
positives
1
neutral
1
negative
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B
Stoneville, NC | June 2010 | negative

A few years back, I had a serious allergic reaction to handling this plant. It grows wild here in the South (NC) and it does have a beaut...Read More

D
Los Fresnos, TX (Zone 10a) | July 2008 | positive

Great Milkweed plant. It has big, broad leaves and a large cluster of flowers. It grows in zones 3b-9b, but will grow in zone 10. All yo...Read More

A
Franklin, NC (Zone 6b) | July 2008 | positive

Nothing to rave about, but it's a distinctive native species that was attracting a lot of bumblebees and butterflies when I first found ...Read More

F
Josephine, Arlington, TX (Zone 8a) | November 2006 | neutral

Clasping Milkweed, Bluntleaf Milkweed Asclepias amplexicaulis is native to Texas and other States.

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