Desert milkweed (Asclepias erosa)

Desert milkweed

Desert milkweed is endemic to desert regions of North America (hence the common name). Its latex was investigated as a source for rubber before synthetic rubber became common. The desert milkweed is an important habitat and source of food for the monarch butterfly.

Scientific classification

Species

Desert milkweed (Asclepias erosa)

Gentians, dogbanes, madders, and allies

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Toxic to Pets

Toxicity

Perennial

Lifespan

45 cm to 90 cm

Plant Height

10 cm to 50 cm

Spread

White, Yellow, Green

Flower Color

Deciduous

Leaf type

5 - 35 ℃

Ideal Temperature

Images of Desert milkweed

Distribution of Desert milkweed

Distribution Map

Desert milkweed is native to North America, specifically within major regions of the southwestern part of the continent. Its distribution may also extend to other adjacent areas following compatible ecological zones, but there have been no significant reports of it being introduced or naturalized in regions beyond its native range.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Desert regions, mountain slopes, and roadsides

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Desert milkweed

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Water: Desert milkweed thrives in arid regions, showing high drought tolerance and requiring weekly watering for cultivation. Indoor growth necessitates well-draining soil to prevent root rot. As a perennial, desert milkweed retains more moisture when grown in-ground than in containers, which need closer moisture monitoring.

Fertilize: For desert milkweed, use a balanced fertilizer bimonthly during the growing season at a quarter-strength. Avoid over-fertilization to protect roots, and reduce feeding in winter. Water the soil before fertilizing to prevent root burn, supporting resilience and attractive foliage.

Pruning: Desert milkweed thrives with early to late spring pruning, removing dead or damaged stems to encourage vigorous growth. Cut just above healthy leaves using clean, sharp tools to prevent disease. Regular pruning also helps control desert milkweed's size and spread while enhancing blooming potential.

Propagation: Desert milkweed is a hardy perennial that flourishes in arid environments, attracting pollinators with its fragrant blooms. Successful propagation requires direct sowing in well-draining soil, with pre-sowing treatments to enhance germination. Consistent moisture management and full sun exposure are key for healthy growth.

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