Location specific values:
Array
(
    [lat] => 39.178800
    [lng] => -77.195400
    [elevation] => 122.3908
    [rainfall] => 1052.2634
    [cold_temperature] => -4.9252
    [temperature] => 30.6992
    [user_eto] => 1043.85289568
)
Plant specific values:
Array
(
    [rain_min_irrigation] => 436
    [eto_corrected] => 1465
    [eto_adjusted_rain_min (rain_min_irrigation / eto_corrected)] => 0.29761092
)
California Milkweed (Asclepias californica) | Easyscape Plant Profile

California Milkweed

(Asclepias californica)

California Milkweed (Asclepias californica)

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Estimated Native Range
Species Map Help

Climate Requirements for Montgomery Village, Maryland

This Plant Your Site Plant Suitability for Your Location
Precipitation 4" - 68" 41" Aquatic Aquatic
High Temp. 74°F - 106°F 87°F Your summer temperatures are normal for this plant. Excellent
Low Temp. 17°F - 47°F 23°F Your winter temperatures are normal for this plant Excellent
This plant may not grow well at your location - your precipitation is too high.

Summary

Asclepias californica, commonly known as California Milkweed, is a deciduous perennial herb native to California and Northwestern Mexico, specifically thriving in chaparral, open woodlands, and desert scrub. It typically grows to a height of 3-4 feet (0.9-1.2 meters) and a width of 2-3 feet (0.6-0.9 meters). The plant features oblong leaves and clusters of intricate flowers that are a combination of purple, pink, and white, blooming from late spring to early fall. The flowers are particularly showy with their reflexed corollas and starlike arrays of bulbous anthers, making them attractive to pollinators.

California Milkweed is valued for its role as a crucial host plant for monarch butterfly caterpillars, contributing to the conservation of this species. It is drought-tolerant, making it suitable for xeriscaping and low-water gardens. In cultivation, it is often used in native plant gardens, wildlife habitats, and as a border plant. It prefers full sun exposure and can tolerate a range of soil types, provided they have good drainage. While generally low-maintenance, it can be susceptible to aphids and milkweed bugs. Gardeners should be aware that all parts of the plant contain toxic compounds that can be harmful if ingested.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 3-4 feet
  • Width: 2-3 feet
  • Growth Rate: Moderate
  • Flower Color: Purple, Pink, White
  • Flowering Season: Fall, Spring, Summer
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun
  • Water: Low, Medium
  • Drainage: Slow

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Deer Resistant, Drought Tolerant, Fragrant, Hummingbird Garden, Low Maintenance

Natural Habitat

Native to chaparral, open woodlands, and desert scrub in California and Northwestern Mexico

Other Names

Common Names:

Scientific Names: Asclepias californica

GBIF Accepted Name: Asclepias californica Greene