Photo by Melody

PlantFiles: Butterfly Milkweed, Butterfly Weed, Pleurisy Root
Asclepias tuberosa 'Hello Yellow'

Family: Apocynaceae (a-pos-ih-NAY-see-ee) (Info)
Genus: Asclepias (ass-KLE-pee-us) (Info)
Species: tuberosa (too-ber-OH-suh) (Info)
Cultivar: Hello Yellow

5 vendors have this plant for sale.

20 members have or want this plant for trade.


24-36 in. (60-90 cm)

15-18 in. (38-45 cm)

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)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun

Parts of plant are poisonous if ingested

Bloom Color:
Bright Yellow

Bloom Time:
Mid Summer
Late Summer/Early Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
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:
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored

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5 positives
2 neutrals
No negatives

Gardeners' Notes:

Positive hymenocallis On Jan 22, 2013, hymenocallis from Auburn, AL (Zone 8a) wrote:

To get the seeds all you need to do is to get a single follicle ( fruiting structure) of the milkweed when it is about to burst and there will be 50 + seds within and they will provide new plants for the future. All milkweeds produce seeds the same way so you can take the seeds in the summer and plant them in anything and they will come up.. I recommend you store the seeds in a fridge until spring and they will maintain about 90% germination for several years.

Positive plantmover On Sep 12, 2011, plantmover from Hampton Roads, VA (Zone 7b) wrote:

Had problems initially with drainage and had to relocate multiple times. Finally found a happy spot at the bottom of a downspout where I added some gravel. The plant has thrived incredibly well since, filling out and blooming multiple times a season. It is much larger and fuller than the native orange variety planted in full sun on a much drier sloped area.

Positive boopie2 On Jul 26, 2011, boopie2 from Springfield, VA wrote:

I have had this plant for 3 years. I LOVE it..just keeping cutting it back after it blooms and it will rebloom again and again. My only negative is that I have yet been successful at getting it to reseed AND it is very difficult to find at the local nursery. I am happy to report I had a TON of monarchs on this plant last year

Neutral braun06 On Jun 12, 2010, braun06 from Peoria Heights, IL (Zone 5b) wrote:

This plant is tough, but less vigorous than the species. I bought 4" containers last year but they came back less succesful in thier 2nd year in the ground. I have grown the species before and of course had no problems. I will be removing these plants and attempting a different prairie native, Asclepias sullivantii.

Neutral coachbc On Feb 21, 2010, coachbc from Schaumburg, IL wrote:

do butterfiles prefer the traditional orange butterfly weed to the Hello Yellow?

Positive tabasco On May 26, 2007, tabasco from Cincinnati (Anderson Twp), OH (Zone 6a) wrote:

This particular asclepias, a perennial in our zone 6a if planted in a well-draining and sunny spot in the garden, can take three years to bloom from seed planting. A. tuberosa is a favorite butterfly attracting bloom in area gardens for its attractive and neat garden habit and its ability to return each spring (unlike A. currasavica, another attractive garden A. which is not hardy in northern climes).

A. tuberosa is a much visited nectar milkweed of twelve species of butterlies here (according to the University of Kentucky Extension). And if you want the beautiful Monarch butterflies to visit your garden, this Asclepias serves as both a nectar flower and host plant for oviposting (egg laying). Of course, if a monarch mother chooses your A. for her egg laying, the hatched caterpillers will munch through the leaves rather quickly so you had better plant a few of these! A. tuberosa is a nice partner to lantanas and coneflowers, two other butterfly favorites.

Positive Marilynbeth On Nov 19, 2006, Marilynbeth from Hebron, KY wrote:


Love having it for the color and for the Butterflies!


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

Auburn, Alabama
Los Angeles, California
Lewes, Delaware
Green Cove Springs, Florida
Hollywood, Florida
Venice, Florida
Hahira, Georgia
Villa Rica, Georgia
Peoria, Illinois
Jeffersonville, Indiana
Hebron, Kentucky
Prospect, Kentucky
Oxon Hill, Maryland
Florence, Mississippi
Forked River, New Jersey
Fargo, North Dakota
Cincinnati, Ohio
Austin, Texas
Georgetown, Texas
Houston, Texas
Arlington, Virginia
Newport News, Virginia
Springfield, Virginia
Madison, Wisconsin
Marinette, Wisconsin
Pewaukee, Wisconsin

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