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Giant Milkweed

Calotropis gigantea
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Calotropis gigantea (Giant Milkweed) — botanical photograph
Pl. 75F9 — Calotropis gigantea
Calotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis giganteaCalotropis gigantea
I

Overview

Giant Milkweed, scientifically known as Calotropis gigantea, is a shrub native to regions including Assam, Bangladesh, Cambodia, and various parts of India, with a widespread distribution across Southeast Asia, including countries like China South-Central, China Southeast, East Himalaya, Hainan, Myanmar, Nepal, Sri Lanka, Sulawesi, Thailand, and Vietnam. This plant thrives in full sun and can tolerate both dry and moist conditions, making it adaptable to different soil types such as light (sandy), medium, and heavy (clay). Known for its ornamental value and edibility, Giant Milkweed is valued for its flowers and leaves, which are edible and can be prepared as a decoction in traditional Ayurvedic practices to support immune health. The plant grows up to 5 meters in height and is hardy in zones 10-12, though it may require protection in colder areas. Its presence in diverse habitats across Southeast Asia highlights its resilience and widespread distribution. Giant Milkweed is also utilized for its utility in textiles, fire starting, cut flowers, dye, fiber, and as a cover crop or hedgerow. It has been introduced to various regions such as Andaman Islands, Angola, Colombia, Cuba, Fiji, Gilbert Islands, Hawaii, Kenya, Lesser Sunda Islands, and more, showcasing its adaptability and cultural significance.

Quick answers

What is Giant Milkweed?

Giant Milkweed, scientifically known as Calotropis gigantea, is a shrub native to regions including Assam, Bangladesh, Cambodia, and various parts of India, with a widespread distribution across Southeast Asia, including countries like China South-Central, China Southeast, East H

What is Giant Milkweed used for?

Traditionally used for immune support. Each claim is evidence-rated — see Section II for full citations.

Best for
Top 1 evidence-ranked use of Giant Milkweed
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Clinicaluses · safety · chemistry · dosagemedicinal profile
II

Benefits & evidence

1 claim · traditional-use context
Traditional-use context
These notes are presented as ethnobotanical context. No cited clinical references are catalogued for this plant yet.
  • Giant Milkweed has been traditionally used in Ayurveda to support immune health, often prepared as a decoction from leaves and flowers. It is believed to help the body resist common ailments.

    The plant contains various alkaloids and cardiac glycosides which may contribute to its immunomodulatory effects, though the specific mechanisms are not fully characterised.

    ▲ ModerateImmune support →
IV·b

Mixology suggestions

1 draft
Editorial drafts. These pairings are AI-suggested from traditional herbal lore. Always verify with a qualified herbalist before brewing.
Giant Milkweed support blend
general
tea
AI returned a direct ingredient list; normalized into one draft blend for editorial review.
Growingconditions · propagation · uses
V

Cultivation

Giant Milkweed thrives in full sun and can tolerate both dry and moist conditions. It prefers light (sandy), medium, or heavy (clay) soils. This shrub is hardy in zones 10-12 but may require protection in colder areas. For propagation, use seeds or cuttings. The edible parts include the flowers and leaves.
Light
Full sun
Water
Dry, Moist
Soil
Light (sandy), Medium, Heavy (clay)
Hardiness
10-12
Habit
Shrub
Mature size
5.0 m tall
For first-time growers

How to grow Giant Milkweed for the first time

8steps

Start with Giant Milkweed as a simple, low-maintenance shrub for your garden.

  1. 1

    What you'll need

    A young plant or seeds, a pot if container planting, and basic gardening tools.

  2. 2

    Best time to plant

    Plant in spring when the weather is warming up.

  3. 3

    Soil and container prep

    Use well-draining soil with a mix of light (sandy), medium, or heavy clay. Ensure containers have drainage holes.

  4. 4

    Sowing or transplanting

    Transplant young plants directly into the garden or start seeds indoors 4-6 weeks before planting outdoors.

  5. 5

    First two weeks

    Water regularly to keep soil moist but not waterlogged. Place in a sunny spot to encourage growth.

  6. 6

    Ongoing care

    Provide full sun and regular watering, especially during dry periods. Prune lightly to maintain shape.

  7. 7

    Harvest or pruning

    Prune regularly to keep the plant tidy and promote new growth. Remove dead flowers to encourage more blooms.

  8. 8

    Common mistakes

    Overwatering, planting in poorly draining soil, not providing enough sunlight, neglecting regular pruning.

VI

Edible & utility

Edible parts:FlowersLeaves
Edible uses: Manna, Drink
Other uses:textilesFire starterCut flowersDyeFiberCover cropHedgerowPest controlMulchSoil reclamationErosion controlWeaving materialTanninTeethWaterproofingCandlesCoppice
Contextrange · companions · related
VII

Distribution

19 native · 23 introduced
Distribution across4 continents· 19 native· 23 introduced
Asia12 regions
native (11)BangladeshCambodiaChinaIndiaLaosMaldivesMyanmarNepalSri LankaThailandVietnam
introduced (1)Philippines
Americas4 regions
introduced (4)ColombiaCubaUnited StatesVenezuela
Africa4 regions
introduced (4)AngolaKenyaMozambiqueTanzania
Oceania1 region
introduced (1)Fiji
Broader regions
native:East Himalaya, Hainan, Jawa, Laccadive Is., Malaya, Sulawesi
introduced:Andaman Is., Gilbert Is., Lesser Sunda Is., Marianas, New Guinea, Northern Territory, Phoenix Is., Queensland, Society Is., Solomon Is., Trinidad-Tobago, Venezuelan Antilles, Wake I.
IX

Specimen gallery

1 image
Calotropis gigantea (Giant Milkweed) — botanical photograph
Giant Milkweed (Calotropis gigantea)
X

See also

8 related
XI

Explore further

XII

About this entry

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