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Aquatic milkweed (Asclepias perennis) in the Milkweeds Database

From our plant lists:
» 2 members have this plant.

Common names:
Give a thumbs up Aquatic milkweed
Give a thumbs up Swamp Milkweed
Give a thumbs up White Milkweed
Give a thumbs up Milkweed

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Wet
Wet Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 6a -23.3 °C (-10 °F) to -20.6 °C (-5 °F)
Maximum recommended zone: Zone 9b
Plant Height: 2 to 3 feet
Plant Spread: 12 inches
Leaves: Unusual foliage color
Flowers: Showy
Flower Color: White
Other: Pinkish-white
Flower Size: Under 1"
Flower Time: Late winter and early spring
Late spring or early summer
Late summer or early fall
Inflorescence Type: Umbel
Underground structures: Taproot
Suitable Locations: Bog gardening
Uses: Groundcover
Wildlife Attractant: Bees
Other Beneficial Insects: Wasps, Moths
Toxicity: Other: All parts of plant are toxic if ingested. Sap may cause contact dermatitis.
Miscellaneous: Goes Dormant

Photo courtesy of Brian Ahern

Grow Milkweed and Help Save the Monarch ButterfliesGrow Milkweed and Help Save the Monarch Butterflies
By dave, September 23, 2015

Could the monarchs one day actually go extinct? It's not unheard of. The loss of milkweed is directly related to the loss of monarchs. Let's all grow milkweed and preserve this majestic species of butterfly.

(Full article23 comments)
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Photo gallery:
Location: MississippiDate: 2015-09-30Asclepias perennis continues to bloom even with maturing seed pod
By kchd
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Event Report from aspenhill - Lucketts, VA (Zone 7a)
On May 4, 2012 Obtained plant
DG David (greenthumb99) and Pat (ecnalg) - qty 2

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