Asclepias, Butterfly Milkweed, Butterfly Weed, Pleurisy Root 'Gay Butterflies'

Asclepiastuberosa

Family
Apocynaceae (a-pos-ih-NAY-see-ee)
Genus
Asclepias (ass-KLE-pee-us)
Species
tuberosa (too-ber-OH-suh)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
24-36 in. (60-90 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
Danger
All parts of plant are poisonous if ingested
Bloom Color
Red
Orange
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
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
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Saraland, Alabama

Morrilton, Arkansas

Lady Lake, Florida

Pompano Beach, Florida

Rock Falls, Illinois

Hebron, Kentucky

Madisonville, Kentucky

Prospect, Kentucky

Ferriday, Louisiana

Westland, Michigan

Wayzata, Minnesota

Florence, Mississippi

Saint Louis, Missouri

Croton On Hudson, New York

Port Washington, New York

West Islip, New York

Chapel Hill, North Carolina

Cincinnati, Ohio

Harrisburg, Pennsylvania

Saint Helena Island, South Carolina

Arlington, Texas

Fort Worth, Texas

Los Fresnos, Texas

Walkerton, Virginia

Glenville, West Virginia

Madison, Wisconsin

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Gardener's Notes:

5
positives
3
neutrals
0
negative
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P
| May 2018 | positive

I enjoy them and they are the only plant I encourage to be eaten. My variegated variety did not last a second season, however, which is unusual.

M
M
Whiteside County, IL (Zone 5a) | August 2009 | positive

Wintersowed spring of 2009 and would you believe they bloomed for me the first year. Lots of Monarch eggs on these already! I have both a...Read More

G
(Zone 5a) | July 2008 | neutral

Not much different from the species.

Blooms June-August in my garden.

G
| July 2007 | positive

While it is true they are very difficult to transplant, I am lucky in that they grow wild here on my farm. Unfortunately the deer LOVE t...Read More

M
Hebron, KY | November 2006 | positive

Beautiful flower and plant. Wonderful for attracting BF's.

S
Westland, MI (Zone 6a) | November 2005 | neutral

Mine are all yellow and orange, no red. They don't bloom very long, maybe 6 weeks, but the butterflies sure love them (also mud daubers)...Read More

S
Brockton, MA (Zone 6a) | November 2005 | positive

These are nice for the mixed colors rather than all orange.
If seedlings are grown in soft, pliable soil, transplanting can be don...Read More

L
Grove City, OH (Zone 6a) | January 2003 | neutral

Butterfly weed is difficult to transplant: it is best to grow from direct-seeding, or to plant seeds in pots that can be planted without ...Read More

Featured
Bee Fly
(Geron dispar)
Red-shouldered Hawk
(Buteo lineatus)
Featured
Bee Fly
(Geron dispar)
Red-shouldered Hawk
(Buteo lineatus)