General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Minimum cold hardiness: Zone 9a -6.7 °C (20 °F) to -3.9 °C (25 °F)
Maximum recommended zone: Zone 11
Plant Height: 3 to 4 feet
Plant Spread: 2 to 3 feet
Fruit: Dehiscent
Other: 2 to 3 inch long pods containing numerous silky seeds.
Flowers: Showy
Flower Color: Yellow
Bloom Size: Under 1"
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Fall
Late fall or early winter
Uses: Cut Flower
Suitable as Annual
Wildlife Attractant: Bees
Butterflies
Hummingbirds
Resistances: Deer Resistant
Humidity tolerant
Propagation: Seeds: Needs specific temperature: 65-70ºF
Days to germinate: 2 to 3 weeks
Depth to plant seed: Shallowly sow at depth of approximately 1/4 inch; keep moist.
Other info: Direct sow in spring.
Propagation: Other methods: Cuttings: Stem
Containers: Needs excellent drainage in pots

Image
Common names
  • Tropical Milkweed
  • Butterfly Weed
  • Bloodflower
  • Swallow-wort
  • Mexican Milkweed
  • Milkweed

Photo Gallery
Location: Coastal San Diego County 
Date: 2018-05-14
Found about 20 monarch caterpillars in someone’s green trash ca
Location: Tampa, FL
Date: 2023-11-22
Location: Tampa, FL
Date: 2023-11-22
Location: Sebastian,  Florida
Date: 2022-10-28
Location: Winter Park, FL zone 9b
Date: 2019-02-11
Location: Elberfeld, Indiana
Date: 2016-08-21
#Pollination
Location: Sebastian,  Florida
Date: 2023-09-07
Location: all photos from my gardens
Date: 2018-09-11
Location: Sebastian,  Florida
Date: 2023-05-28
Location: Sebastian,  Florida
Date: 2022-03-26
Location: Winter Park, FL zone 9b
Date: 2019-02-11

Date: Apr 23, 2011 9:06 PM
Location: Sebastian,  Florida
Date: 2022-05-10
Location: My Yard
Date: 2018-10-10
Location: San Antonio Zoo, San Antonio, Texas
Date: 2022-04-06
Location: My garden in Kentucky
Date: 2007-08-12
#pollination
Location: Elberfeld, Indiana
Date: 2016-08-21
Host Plant for Monarch Caterpillars
Location: Elberfeld, Indiana
Date: 2016-07-22
Asclepias curassavica 'Silky Gold' behind Coneflowers
Location: all photos from my gardens
Date: 2018-08-27
Location: all photos from my gardens
Date: 2018-07-10
Location: IL
Date: 2008-10-11
Location: Coastal San Diego County 
Date: 2017-07-31

photo by Stan Shebs
Location: My garden in Kentucky
Date: Aug 12, 2007 9:31 AM
Location: My garden in Kentucky
Date: Aug 12, 2007 9:30 AM
Location: My garden in Kentucky
Date: 2007-08-12
Location: My garden in Kentucky
Date: 2007-07-31

Photo courtesy of Annie's Annuals and Perennials

 Photo Courtesy of Select Seeds. Used with permission.
  • Uploaded by Joy
Location: My garden in Kentucky
Date: 2007-08-12
With a Monarch Butterfly sipping from the flowers. #Pollination
Location: My garden in Kentucky
Date: Aug 12, 2007 11:18 AM
Monarch Caterpillar on leaf
Location: My garden in Kentucky
Date: Aug 12, 2007 5:27 PM
Closeup
Location: My garden in Kentucky
Date: 2007-09-26
Location: My garden in Kentucky
Date: 2007-08-12

Photo courtesy of Annie's Annuals and Perennials
Comments:
  • Posted by jorolan2 (Hot Springs AR) on May 20, 2018 10:29 AM concerning plant:
    Would really like this plant. I use regular milkweed in garden coupled with parsley. The monarchs seem to like both. Need more plants for the monarchs as they are dwindling in our area. Plant zone 7
Plant Events from our members
MunchkinsMom On June 13, 2016 Miscellaneous Event
Still no signs of life.
MunchkinsMom On April 4, 2016 Miscellaneous Event
No signs of life yet
MunchkinsMom On October 26, 2015 Transplanted
Small Bed
MunchkinsMom On October 17, 2015 Miscellaneous Event
Seed pods started opening. Amazed to find it flowers and seeds at the same time.
MunchkinsMom On September 24, 2015 Obtained plant
Fair Oaks Nursery
lovesblooms On March 1, 2020 Seeds sown
winter sow
lovesblooms On March 3, 2018 Seeds sown
winter sown
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
What a wonderful shot!! by dave Sep 24, 2011 9:27 PM 1

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