Species prairie milkweed
Pink stalks with pink-white flowers and a central yellow-green anthers, blooming above green leaves.

prairie milkweed

Asclepias sullivantii

Also Known As - Prairie Milkweed,Smooth Milkweed
Prairie milkweed (Asclepias sullivantii) is an amazing plant species native to the tallgrass prairies of the Midwest. This species of milkweed is incredibly attractiverare, and important to the local ecosystem. Its long, woody stems and showy clusters of white, fragrant flowers make it a beautiful addition to any garden. The flowers attract a variety of pollinators from monarch butterflies, to bumble bees, and hummingbirds. Furthermore, its sturdy root system helps to stabilize the soil, promote water infiltration, and reduce soil erosion. Prairie milkweed is an important, long-lasting, and beautiful species of plant that all gardeners should consider adding to their yards.

Cycle:

Herbaceous Perennial

Watering:

Frequent

Propagation:

Seed Propagation,Root Cutting,Division,Layering Propagation,Stem Propagation

Hardiness Zone:

3 - 7

Flowers:

Pink Flowers

Sun:

Full sun

Soil:

Sand, Loam

Leaf:

Yes

Leaf Color:

green,yellow

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

Prairie milkweed should be watered occasionally, about 1–2 times per week. Water the soil until it is evenly moist but not overly wet. Aim to water in the morning so the foliage has time to dry off during the day. Reduce watering during the winter months, when the plant is dormant. If the potting mix drains poorly, water less often. Too much moisture can lead to root rot, so ensure the soil drains well.

sunlight

Prairie milkweed requires full sun, meaning it needs at least 8 hours of direct sunlight each day during peak growing season. During the spring and summer months, when days are longer and more intense, it is best for the plant to receive the full 8 hours of direct sunlight. However, during shorter days in winter, it is still important that the plant receives adequate light to give it the energy it needs to thrive and produce the vibrant pink blooms it is known for. Partial shade is tolerated, but prairie milkweed will not flower as strongly if the plant does not receive its 8 hours of sunlight each day.

pruning

Prairie milkweed (Asclepias sullivantii) requires light pruning from late summer through early spring. Pruning should remove dead or damaged foliage and stems, as well as spent flowers. It’s important to use sanitized garden shears or scissors when pruning milkweed as the sap may cause irritation if it comes into contact with your skin. Additionally, be sure to dispose of clippings away from the plant, as its sap may be detrimental for other plants in the area.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Asclepias sullivantii typically starts flowering in June.

Hardiness Map