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2026 Seed Catalog

<> Silky Deep Red milkweed seeds
Silky Deep Red milkweed seeds Butterfly weed Silky Deep Red

AN00137

Silky Deep Red

Milkweed Seeds

a.k.a. Tropical Milkweed, Bloodflower

Asclepias curassavica

Silky Deep Red milkweed produces electric red and orange, umbel-type flower heads from summer until frost. It is a tropical milkweed which grows to 3 ft. tall and spreads to 1 ft. wide and makes a stunning, accent or background plant.

Don't confuse Silky Deep Red with the common milkweed, which is not nearly as showy. And yes of course, it is the King of all the plants if you happen to be a butterfly.

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

Growing Silky Deep Red Milkweed Seeds

Bee introduces how to plant

Plant Milkweed: Sow seeds in cell packs or flats, press into soil and lightly cover. Kept at 65-75°F, germination is in 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 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

U.S. Shipping Rates

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.