|Sun Requirements:||Full Sun
Full Sun to Partial Shade
|Soil pH Preferences:||Strongly acid (5.1 – 5.5)
Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
|Minimum cold hardiness:||Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
|Maximum recommended zone:||Zone 9b
|Plant Height:||24 - 48 inches|
|Plant Spread:||18 - 24 inches|
|Leaves:||Other: Plants have a cluster of fleshy roots radiating outwards and are best left undisturbed once established. Foliage is slow to emerge in spring. It typically grows 3-4' tall (less frequently to 5') on branching stems. Stems exude a toxic milky sap when cut.
Other: reflexed pink petals under/surrounding whitish hoods
|Bloom Size:||Under 1"
|Flower Time:||Late spring or early summer
Late summer or early fall
|Suitable Locations:||Bog gardening
|Toxicity:||Leaves are poisonous
Roots are poisonous
Other: Bitter tasting
|Propagation: Seeds:||Provide light
Stratify seeds: Needs 1 month cold moist treatment.
Suitable for wintersowing
Can handle transplanting
|Propagation: Other methods:||Division
Moths and Butterflies
|Containers:||Not suitable for containers
|SCButtercup||On June 4, 2014||Bloomed|
|flaflwrgrl||On March 27, 2015||Seeds sown
|Catmint20906||On July 27, 2015||Bloomed|
|lovesblooms||On April 1, 2015||Obtained plant
|christine2||On April 14, 2017||Obtained plant
|dave||On March 16, 2017||Seeds sown|
|dave||On January 29, 2017||Maintenance performed
Placed in moist paper towel in a ziplock bag and placed in the fridge.
|bzrhart||On May 7, 2017||Obtained plant|
|MunchkinsMom||On October 17, 2016||Obtained plant
Dogwood eBay 2 1/2" pot Dormant $1.75 About 3" tall
|Anndixon||On May 15, 2018||Obtained plant|
|jhugart||On May 22, 2020||Obtained plant
Acquired second plant at Mother Earth Gardens in northeast Minneapolis.
|jhugart||On May 22, 2020||Transplanted
Put second Swamp Milkweed plant in the ground, Southern Exposure section, near the first.
|jhugart||On May 13, 2020||Plant emerged
Noticed new growth at the base of the plant today. Shoots with leaves emerging from the taproot.
|dnrevel||On February 4, 2022||Seeds sown
Winter sown in red Solo cups.
|gochna||On November 18, 2021||Seeds sown
sown seeds above the lavenders in-between the stones
|paleohunter||On June 20, 2022||Seeds sown|