Giant Milkweed (Calotropis gigantea)

Common names:
Give a thumbs up Giant Milkweed
Give a thumbs up Crown Flower
Give a thumbs up Giant Calotrope
Give a thumbs up Swallow-wort

Botanical names:
Calotropis gigantea Accepted
Asclepias gigantea Synonym

General Plant Information (Edit)
Plant Habit: Shrub
Sun Requirements: Full Sun
Minimum cold hardiness: Zone 10a -1.1 °C (30 °F) to +1.7 °C (35 °F)
Plant Height: 6 to 16 feet (2-5m)
Leaves: Evergreen
Fruit: Showy
Flowers: Showy
Flower Time: Other: Nearly year round.
Suitable Locations: Xeriscapic
Wildlife Attractant: Butterflies
Resistances: Salt tolerant
Toxicity: Other: Milky sap is toxic
Propagation: Other methods: Cuttings: Stem
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots


Discussion Threads about this plant
Thread Title Last Reply Replies
Giant Milkweed... by wcgypsy Jun 17, 2013 9:12 PM 1
Flower name enquiry by PaxTee Nov 21, 2018 11:45 PM 4
Tropical Seed ID by tcs1366 Apr 26, 2017 11:26 AM 4
Growing Milkweeds by luvsgrtdanes Sep 13, 2019 10:42 PM 528
What do you grow from seed? by DomehomeDee Nov 24, 2016 10:03 PM 28
First plant from Ghana by Baobab Nov 11, 2016 6:46 AM 4
California Milkweed by DavidLMO Dec 8, 2017 5:09 PM 11
Is this picture correct? by mellielong Jan 6, 2016 3:35 PM 7
Banyan Tree (Ficus benghalensis) by ranbenazra Aug 26, 2015 9:15 AM 8
Daily gardening thread for everyone by keithp2012 Jan 21, 2020 7:31 AM 18,759
Milkweed by PeggyC Jun 1, 2018 5:45 PM 13

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