Silky Deep Red Tropical Milkweed

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'Silky Deep Red' Tropical Milkweed is noted for its long bloom season, producing clusters of orange-red flowers with yellow centers from late spring to fall. This lush beauty carries an air of exotic mystery when planted as an annual in cooler zones, or used as a statement in container gardens. Young foliage has reddish tones adding to the variety’s distinctive beauty. (Asclepias curassavica)
Zones 8 - 10
Bee Friendly
Attract Butterflies
Attract Hummingbirds
Attract Birds
Deer Resistant
Fragrant Flower / Foliage
Good For Containers
Rabbit Resistant
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

Selected for more vibrant color and slightly larger flower clusters than the species, 'Silky Deep Red' Tropical Milkweed provides season-long blooms and lasting color. Flowers are a great source of nectar for bees, butterflies, hummingbirds and other pollinators and beneficial insects. 

In cooler zones, grow as an annual or as a statement in container gardens. In zones 9 and up, tropical milkweeds should not be allowed to overwinter, so cut back the foliage when other milkweeds are naturally senescing. This encourages monarch butterflies to naturally migrate on time, and eliminates the potential for harmful monarch parasites to survive the winter and infect next year's butterfly populations. 

Plants flower best in full sun but tolerate light shade. Like other asclepias, 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
8, 9, 10
Light Requirements
Full Sun
Flower Color
Flower Size
Up to 2" flowers
Mature Height
24-48" tall
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
Soil Type
Loamy Soil, Well-Drained Soil
Soil Moisture
Average, Moist / Wet
Bee Friendly, Attract Butterflies, Attract Hummingbirds, Attract Birds, Deer Resistant, Fragrant Flower / Foliage, Good For Containers, Rabbit Resistant
Additional Information
Tender perennial. Grow as an annual or container plant in colder zones, do not allow to overwinter with foliage to protect Monarch populations.
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Poisonous or Toxic to Animals
All parts of plant are poisonous if ingested.
Native To
Central America, South America, Caribbean
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.

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