Silky Deep Red Tropical Milkweed

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'Silky Deep Red' Tropical Milkweed produces eye-catching, red-orange flowers with yellow centers. A valuable source of nutrition for Monarch butterflies, this lush beauty carries an air of exotic mystery when planted as an annual in cooler zones. Young foliage has reddish tones adding to the variety’s distinctive beauty. Flowers from late spring to late fall. (Asclepias curassavica)
Zones 9 - 10
Attract Butterflies
Attract Hummingbirds
Attract Birds
Bee Friendly
Deer Resistant
Rabbit Resistant
Fragrant Flower / Foliage
Good For Containers
Light Requirements
Full Sun
Mature Height 24-48" tall. , 24-36" wide.
Bloom TimeMid summer to late fall

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

Find Your Planting Zone:

Plant Information

36-48" tall x 24-36" wide. ‘Silky Deep Red’ Tropical Milkweed has captured the heart of butterfly gardeners. Selected for more vibrant color and slightly larger flower clusters than the species. Showy, season-long blooms provide lasting color and a non-stop resource for monarchs. To provide the best benefit to monarchs, plant tropical milkweed alongside local varieties for a diverse offering of nectar and resources. Though tropical milkweed can perennialize in mild coastal regions, monarchs are best served when gardeners in southern climates (and California) manage plants in a way that supports natural migrations. Remove tropical milkweed late in the growing season when other milkweed species are naturally senescing. This encourages monarchs to move along and eliminates potential over-wintering sites. Plants flower best in full sun but tolerate light shade. Like other  species, tropical milkweed is resistant to deer and rabbit browsing.

More Information
Associated SKUsAM016215
AM014280 (Plant - 3" Pot) - Out of stock.
AM015769 (Tray of 16) - Out of stock.
Common Name
Silky Deep Red Tropical Milkweed, Bloodflower
Botanical Name
Asclepias curassavica Silky Deep Red
9, 10
Light Requirements
Full Sun
Flower Color
Flower Size
Up to 2" flowers
Mature Height
24-48" tall.
Estimated Mature Spread
24-36" wide.
Growth Rate
Bloom Time
Mid summer to late fall
Planting Depth
Crown of plant should rest just at or above the soil surface after watering in.
Ships As
Potted Plant
Narrow 6" long dark-green lance-shaped leaves.
Soil Type
Loamy Soil, Moist/Wet Soil
Soil Moisture
Average, Moist / Wet, Well Draining
Attract Butterflies, Attract Hummingbirds, Attract Birds, Bee Friendly, Deer Resistant, Rabbit Resistant, Fragrant Flower / Foliage, Good For Containers
Ideal Region
Southeast, Pacific Northwest
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Poisonous or Toxic to Animals
All parts of plant are poisonous if ingested.
Ships to Hawaii, Alaska & Canada
Planting & Care

How to Plant Milkweed, Step-by-Step:

  1. Choose fast-draining soil.
  2. Plant in full sun.
  3. Do NOT disturb roots, especially tap roots.
  4. Water sparingly.

Learn More


Further Reading:


No longer available this season.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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