Asclepias Species, California Desert Milkweed

Asclepiaserosa

Family
Apocynaceae (a-pos-ih-NAY-see-ee)
Genus
Asclepias (ass-KLE-pee-us)
Species
erosa (e-ROH-suh)
Synonym
Asclepias leucophylla
Sun Exposure
Full Sun
Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
All parts of plant are poisonous if ingested
Bloom Color
Pale Yellow
Cream/Tan
Bloom Time
Mid Summer
Other Details
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Bronze
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
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
Seed Collecting
Regional

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

Ajo, Arizona

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Gardener's Notes:

0
positive
1
neutral
0
negative
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Phoenix, AZ (Zone 9b) | December 2006 | neutral

I've seen this growing in the wild on the 'El Camino Del Diablo Trail' (Devils' Highway) that runs between Ajo and Wellton in Arizona thr...Read More

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