Tropical milkweed with red-orange and yellow flower clusters on upright stems with narrow leaves

Tropical Milkweed

Asclepias curassavica
Categories:
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Light
Water
Moderate water; irrigate deeply when the top 1–2 inches of soil dry. Containers and plants in full summer sun need more frequent watering.
Description
A fast-growing, nonnative milkweed with slender stems, narrow leaves, and vivid red-and-orange flowers with yellow crowns; attracts butterflies and supports monarch caterpillars.
Deciduous / Evergreen
Growth Rate
Growth Habit
Flower Color
Foliage Color
Toxic to pets, livestock & humans if ingested; milky sap is an irritant
Care Instructions

Light: Full sun to partial shade; afternoon shade helps protect plants from Phoenix’s intense summer heat.

Water: Moderate water; irrigate deeply when the top 1–2 inches of soil dry. Containers and plants in full summer sun need more frequent watering.

Soil: Well-drained sandy or loamy soil; tolerates alkaline soil but dislikes prolonged saturation.

Mature size: 2–4 feet tall and 1–3 feet wide.

Bloom: Spring through fall, potentially continuing into mild winters; flowering may slow during extreme summer heat.

Evergreen / deciduous: Evergreen in frost-free conditions; frost-tender perennial that may lose leaves or die back during Phoenix cold snaps.

Growth rate: Fast.