Plant Habit: | Herb/Forb |
Life cycle: | Perennial |
Sun Requirements: | Full Sun Full Sun to Partial Shade |
Water Preferences: | Wet Wet Mesic Mesic |
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. |
Flowers: | Showy Fragrant |
Flower Color: | Mauve Pink White Bi-Color Other: reflexed pink petals under/surrounding whitish hoods |
Bloom Size: | Under 1" |
Flower Time: | Late spring or early summer Summer Late summer or early fall |
Underground structures: | Rhizome |
Suitable Locations: | Bog gardening |
Uses: | Water gardens Will Naturalize |
Wildlife Attractant: | Bees Butterflies |
Resistances: | Deer Resistant Rabbit Resistant Flood Resistant Humidity tolerant |
Toxicity: | Leaves are poisonous Roots are poisonous Other: Bitter tasting |
Propagation: Seeds: | Provide light Self fertile Stratify seeds: Needs 1 month cold moist treatment. Suitable for wintersowing Can handle transplanting |
Propagation: Other methods: | Division |
Pollinators: | Wasps Moths and Butterflies Flies Bumblebees Bees |
Containers: | Not suitable for containers |
SCButtercup | On June 4, 2014 | Bloomed |
flaflwrgrl | On March 27, 2015 | Seeds sown Direct sown. |
Catmint20906 | On July 27, 2015 | Bloomed |
lovesblooms | On April 1, 2015 | Obtained plant planted 2x |
christine2 | On April 14, 2017 | Obtained plant 7 |
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 January 14, 2024 | Seeds sown Winter Sowed at Matthaei as part of Seeds to Community. Looking forward to seeing how they do! |
dnrevel | On February 4, 2022 | Seeds sown Winter sown in red Solo cups. |
paleohunter | On June 20, 2022 | Seeds sown |
Flowerlover6 | On October 19, 2022 | Seeds sown |
Thread Title | Last Reply | Replies |
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Asclepias incarnata by virginiarose | Nov 4, 2013 11:25 AM | 1 |
Information missing from your web site by Nymphaea | Jan 26, 2016 4:01 PM | 1 |
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