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2026 Seed Catalog

<> Showy Milkweed
Showy Milkweed Showy Milkweed with Caterpillar Showy Milkweed with Hummingbird Showy Milkweed with Monarch Butterfly Showy Milkweed Plant Showy Milkweed Seed Pod
New for 2026

PR26006

Showy

Milkweed Seeds

Asclepias speciosa

In late spring and into summer, Showy milkweed blooms in rounded clusters of large, star-shaped, waxy white and pink flowers which are sweetly fragrant and irresistible to butterflies. Tall, 2-4 ft. (sometimes up to 6 ft.) upright, unbranched stems with large silvery-green leaves grow in steadily expanding groups. Stems, leaves, flower buds, and the large, later-to-develop seed pods, are all heavily felted with soft white hairs. Flowers provide nectar for butterflies, hummingbirds, and many other pollinators. Emerging Monarch butterfly larvae (caterpillars) feed on the foliage. Showy milkweed is native to Western North America, and winter hardy to zone 3.

30 seeds - $4.99
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View all of our Milkweed varieties.

How to Plant and Grow Showy Milkweed

Bee introduces how to plant

Plant Milkweed: Sow seeds 1/4 in. deep in 2 in. pots or cell packs. At 65-70°F, germination is within 14-21 days. Can direct sow into prepared seed beds in groups of 3-4 seeds, spaced 1-2 ft. apart. Thin to the strongest plant.

Grow Milkweed: Milkweeds tolerate heat and drought, need only occasional water once established, will happily accept average moisture with good drainage.

Milkweeds attract bees and hummingbirds, are important nectar sources for a wide range of pollinators and provide essential nourishment for monarch butterfly larva. Plants are deer and rabbit resistant. Pinch seedlings to encourage more flowering stems per plant. Use caution when working with milkweed: the milky sap is toxic and can cause skin irritation. Caterpillars feeding on milkweed become toxic to birds and other predators.

Shipping Information

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Free shipping on U.S. orders over $70.00.
Free priority shipping on U.S. orders over $175.00.

Standard U.S. shipping is $7.99.
Priority U.S. shipping is $10.99.


International Shipping Rates

Shipping to Canada is $17.99.
International shipping to all other countries is $19.99.

Satisfaction Guarantee

We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.