Milkweed - Swamp
Asclepias incarnata

SKU # S014

Product Type: Seed Packet

Approximate Seeds Per Packet: 48

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$3.50

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This native flower has much to add to the garden besides its role as a Monarch caterpillar staple. The round, flat flower heads are deliciously scented of vanilla, smooth lance-shaped leaves turn a glorious gold in fall, elegant seed pods become a crafter's dream, and who can resist helping the silky seeds catch the breeze and paraglide away! Poisonous

Circa 1827! Butterflies will cover these flowers!

Lifecycle: Perennial

Zone: 3,4,5,6,7,8,9

Size: 4-5' h x 2-3' w

Sun: Full sun to partial shade

Soil: Rich, moist, well-drained

Season: Summer

Seed to Bloom:

Color: Umbels of fragrant pink flowers

Growing Guide
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HOW TO GROW Asclepias incarnata

Sowing Instructions

Depth: Surface sow or barely cover; requires light for germination.
Sprout Time: 21-40 days after chill
Starting Indoors: Stratify for 3 weeks. To stratify, place seeds between moist paper towels or in moist vermiculite in a plastic bag and store in the refrigerator. Six to 8 weeks before last frost, remove pre-chilled seeds from refrigerator and sow in pots. Cover with humidity dome to retain moisture while seeds germinate. Keep at 60-70°F. Water from bottom once germination has occurred, and allow to drain thoroughly.
Starting Outdoors: Sow in early spring when there is still possibility of frost. Also can be sown in fall to germinate the following spring.
When to Set Outside: This mid-to-late summer bloomer can be set in the ground in spring when a light frost is still possible and the soil is cool. It can also be planted in early autumn.

Placement & Cultivation

Swamp milkweed is an essential plant of pollinator gardens. It is the only host of the Monarch butterfly larval stage. The striped caterpillars feed on the leaves, and its sweetly fragrant pink umbels studded with nectaries attract butterflies, bees, and beneficial insects. In the wild, milkweed grows in swamps and wet meadows where deer avoid its leathery leaves and milky sap. A tremendous asset in rain gardens, along ponds or streams, and at the back border in rich soils, it grows into a substantial clump in time.
Final Spacing: 2-3'
Water Use: Medium Water Use
Watering Details: Keep moist—at least 1" of water per week.
Soil pH: Most pH levels are tolerated.
Fertilizer: Milkweed is not a heavy feeder, apply about a half inch of compost and mix in.
Diseases & Pests: Aphids are attracted to the stems of milkweeds and can be removed by hand picking or spraying with a vigorous stream of water.
When to Cut For Bouquets: Cut when florets have opened for fresh arrangements. For dried, cut before florets open, or cut fully developed seed pods.

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Milkweed - Swamp
Asclepias incarnata

HOW TO GROW Asclepias incarnata

Sowing Instructions

Placement & Cultivation

Ratings & Reviews

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Milkweed - Swamp Asclepias incarnata

HOW TO GROW Asclepias incarnata

Sowing Instructions

Placement & Cultivation

Ratings & Reviews

Notify Me

Email A Friend

Milkweed - Swamp
Asclepias incarnata