Asclepias tuberosa (Butterfly milkweed)

Moderately drought tolerant native perennial. Orange-red, umbel-type flowers bloom June to September in dry prairies, canyons or woods, often forming patches in open, disturbed areas. A widely distributed, showy species which as indicated by its name, attracts butterflies—especially monarchs—as well as other types of insects and bees.

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INFORMATION & ATTRIBUTES

Family: Asclepiadaceae

Duration: Perennial

Growth Habit: Forb/Herb

Native Status: Native

Growth Form: Multiple Stem, Rhizomatous

Mature Height: 24 in.

Bloom Color: Orange-red

Bloom Period: Mid Summer

Annual Precipitation: 28-45 in.

Drought Tolerance: High

Shade Tolerance: Intolerant

Elevation:

Wetland Indicator Status:

Fire Resistance: No

Fire Tolerance: High

Nitrogen fixation: None

SOIL ADAPTATION

Coarse Texture: Yes

Medium Texture: Yes

Fine Texture: No

Salinity Tolerance: None

CaCO3 Tolerance: Medium

pH Range: 4.8-6.8


SEEDING NOTES

Seeds per Pound: 70,000

Seeding Rate: PLS lbs/acre

Season: Spring/Fall

Days to Germination:


VARIETIES & LOCAL ACCESSIONS

None