Tropical Milkweed 'Red Butterfly' (Asclepias curassavica 'Red Butterfly')

Tropical Milkweed 'Red Butterfly'

Asclepias curassavica 'Red Butterfly'

Vibrant red-orange blooms draw monarchs like living nectar stations. Herbaceous perennial flowering plant; common name: bloodflower milkweed.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Requires full sun to partial sun; at least 6 hours of direct daily sunlight to support abundant blooming
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Watering Water deeply when the top 2–3 cm of soil dries out; avoid overwatering to prevent root rot
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Temperature Thrives in warm temperatures; protect from frost below 10°C as it is not cold hardy
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Characteristics

  • Leaf: Lanceolate, glossy green leaves arranged oppositely along erect stems
  • Flower: Clustered umbels of red-orange star-shaped blooms with bright yellow centers
  • Stem: Hollow green stems exude toxic milky sap when damaged
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Care Guide

Watering

Keep soil consistently moist but not waterlogged; increase frequency during hot, dry spells

Fertilization

Feed with diluted balanced fertilizer once monthly. Discontinue fertilization in autumn to prepare the plant for dormancy

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench to promote bloom production
Pruning
  • Deadhead spent blooms regularly to encourage continuous flowering throughout the growing season
  • Cut back stems to 15 cm above soil after first frost in cooler regions to prepare for overwintering or removal
  • Thin overcrowded stems to improve airflow and reduce fungal disease risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic due to cardiac glycosides; may cause life-threatening cardiac issues

Humans: Mild gastrointestinal irritation if ingested; skin irritation from contact with milky sap

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Garden Uses & Culture

Culture: Primary host plant for monarch butterfly caterpillars; symbolizes pollinator conservation efforts

Usage: Ornamental garden plant; nectar source for bees, butterflies, and hummingbirds