Photo by Melody

PlantFiles: Swamp Milkweed
Asclepias incarnata 'Cinderella'

Family: Apocynaceae (a-pos-ih-NAY-see-ee) (Info)
Genus: Asclepias (ass-KLE-pee-us) (Info)
Species: incarnata (in-kar-NAH-tuh) (Info)
Cultivar: Cinderella

5 vendors have this plant for sale.

10 members have or want this plant for trade.


36-48 in. (90-120 cm)

18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

All parts of plant are poisonous if ingested

Bloom Color:
Magenta (Pink-Purple)

Bloom Time:
Mid Summer
Late Summer/Early Fall

Unknown - Tell us

Other details:
This plant is attractive to bees, butterflies and/or birds
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

Click thumbnail
to view:

By DaylilySLP
Thumbnail #1 of Asclepias incarnata by DaylilySLP

By DaylilySLP
Thumbnail #2 of Asclepias incarnata by DaylilySLP

By DaylilySLP
Thumbnail #3 of Asclepias incarnata by DaylilySLP

By joesinay
Thumbnail #4 of Asclepias incarnata by joesinay

By debnes_dfw_tx
Thumbnail #5 of Asclepias incarnata by debnes_dfw_tx

By debnes_dfw_tx
Thumbnail #6 of Asclepias incarnata by debnes_dfw_tx

By Kruch72
Thumbnail #7 of Asclepias incarnata by Kruch72

There are a total of 20 photos.
Click here to view them all!


4 positives
2 neutrals
No negatives

Gardeners' Notes:

Positive penpen On May 11, 2012, penpen from North Tonawanda, NY (Zone 6a) wrote:

Mine is planted next to a gutter down spout so it takes up the excess water in the soil that the other plants in that bed don't necessarily need. I purchased it as a starter plant in spring of 2010. Spring of 2012 it has tripled in gerth size. I am in zone 6a and cut the old canes down in spring when I see new growth beginning to emerge. Last year I had several monarch cats on it as well as hummers.

Neutral cougarvamp45 On Apr 11, 2012, cougarvamp45 from Bridgeview, IL wrote:

I planted 6 of these last year, I ordered healthy plants with a well developed root system, & planted them in full sun. They grew tall but I didn't have any flowers on them. They were well watered, not allowed to dry out. Now it's spring, & all of my others perennials are making an appearance, but not the Milkweed, which is why I'm giving it a neutral rating. Is this slow to grow in the spring? Or did they die off?

Positive Danny112596 On Aug 31, 2008, Danny112596 from Los Fresnos, TX (Zone 10a) wrote:

This plant is supposed to grow in zones 4a-9b, yet I have one growing in zone 10a! This plant is adaptive. :-)

Neutral gsteinbe On Aug 19, 2008, gsteinbe from Trenton, NJ wrote:

This plant is vigorous. Mine get at least 4 feet tall. The flowers smell absolutely divine and are very pretty, especially up close. Lots of bugs seem to love the plants (including Monarch Butterfly catepillars, some little yellow aphid-like bugs, and bigger orange and black beetles that congregate in droves on the seed pods), but nothing seems to cause significant damage. They don't seem to bloom for long (hence my neutral rating), but they make tons of seed and look dramatic with their tall, strong stems and abundant leaves. They also don't seem to get many weeds growing up amongst them.

UPDATE: This spring almost none of my original planting of Cinderella butterfly weeds came back. I think that I may have watered them too much last year and kept them too wet. Or else they're just not all that long-lived -- three or four years. Disappointing, but the plant is still worth having around, I think. Short bloom time and lifespan keep me from giving them a positive rating, however.

Positive LeBug On Sep 23, 2007, LeBug from Greenville, IN (Zone 6a) wrote:

I love this plant I have two planted in different spots the butterflies love it! Mine doesn't set seed, does anyone know why it keeps coming back but no seed I'v had the plants for about three years now and want to plant more!

5-16-10 Well, it's taken me forever to figure out I didn't have this one I believe it is the Showy Milkweed but have seedlings of the Cinderella I'm planting this year so I'll be back when I've had it for a year.

Positive flamingonut On Sep 13, 2006, flamingonut from New Milford, NJ wrote:

Despite being an oleander aphid magnet (as are all milkweeds), it's tall, beautiful, and the monarch caterpillars like it. I had grown mine from commercial seed, and it doesn't look as dark as most pictures I've seen online. But, there are a few that match. I'm debating whether or not to upload my photo...


This plant has been said to grow in the following regions:

Bridgeview, Illinois
Greenville, Indiana
Wichita, Kansas
Dracut, Massachusetts
Winthrop, Massachusetts
Blissfield, Michigan
Garden City, Michigan
Pinconning, Michigan
Kasota, Minnesota
Wayzata, Minnesota
New Milford, New Jersey
Trenton, New Jersey
Clifton Park, New York
Croton On Hudson, New York
North Tonawanda, New York
Wake Forest, North Carolina
Delaware Water Gap, Pennsylvania
North Augusta, South Carolina
Fort Worth, Texas (2 reports)
Los Fresnos, Texas

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America