Swamp Milkweed (Asclepias Incarnata) is a perennial herb in the Apocynaceae family with easy care difficulty. It requires high watering and full sun or partial shade light in USDA hardiness zones 3-9. This plant is toxic to cats and dogs — keep it out of reach of pets.

Asclepias incarnata is an upright, clump-forming perennial native to North America, known for its showy pink to mauve flower clusters and its value to pollinators, especially Monarch butterflies.

Swamp Milkweed

Swamp Milkweed

Asclepias Incarnata

Asclepias incarnata is an upright, clump-forming perennial native to North America, known for its showy pink to mauve flower clusters and its value to pollinators, especially Monarch butterflies.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Easy
Water Needs
High
Light
Full Sun, Partial Shade
Hardiness Zones
3-9

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:clay, loamy, silty
Indoor:No
Outdoor:Yes
Garden Use:specimen, pollinator support, native planting

Care Calendar

Monthly care tasks for Swamp Milkweed

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Swamp Milkweed
Swamp Milkweed detail

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Taxonomy

Family:Apocynaceae
Genus:Asclepias