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Milkweed Seeds - Swamp
About...
Swamp Milkweed (Asclepias Incarnata) - This cousin of Butterfly Weed known as Swamp Milkweed blooms the first year from flower seed and tolerates heat, humidity, and even drought!MORE MILKWEED OPTIONS
Flower Specifications
SEASON
Perennial
USDA ZONES
3 - 8
HEIGHT
48 - 60 inches
BLOOM SEASON
Summer and fall
BLOOM COLOR
Pink
ENVIRONMENT
Full sun
SOIL TYPE
Consistently moist, pH 6.1 - 7.5
DEER RESISTANT
Yes
HOUSE PLANT
No
Planting Directions
TEMPERATURE
40F
AVERAGE GERM TIME
21 - 28 days
LIGHT REQUIRED
No
DEPTH
Do not cover
SOWING RATE
4 seeds per plant
MOISTURE
Keep moist until germination
PLANT SPACING
24 inches
Swamp Milkweed (Asclepias Incarnata) - This cousin of Butterfly Weed known as Swamp Milkweed blooms the first year from flower seed and tolerates heat, humidity, and even drought! Asclepias Incarnata flowers are fragrant, colorful, and carefree! A magnet for butterflies, Swamp Milkweed has flat-topped flower clusters that are easy for butterflies to land on, and they are vanilla-scented and rich in nectar. Growing Asclepias flower seeds is so rewarding knowing that these plants will soon be providing a food source for beneficial insects. Plants are typically found along streams and ditches or in moist areas of meadows and prairies. Plants grow 4 to 5 feet tall and have clusters of pink to mauve flowers at the tops of branches.
Asclepias Incarnata is prized for attracting monarch butterflies, and its foliage is sufficiently tender for larvae to feed on making this plant very valuable to the monarch butterfly population. Swamp Milkweed flowers are also nice for cutting, and the blooms are long-lasting in fresh and dried bouquets. This native American plant loves full sun and thrives in heat, humidity, and even drought. Swamp Milkweed plants prefer full sun and well-draining soil.
Many gardeners recommend a cold treatment to help Swamp Milkweed seeds germinate more quickly. To do this, dampen a paper towel, place the flower seeds on the towel and seal it in a ziploc bag. Place the bag in the refrigerator for 3 - 4 weeks. After the cold treatment, start the Swamp Milkweed seeds indoors. Do not cover the flower seeds as they need light to germinate. Transplant the Swamp Milkweed plants outdoors once temperatures are warm and the plants have 4 - 5 leaves.