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Swamp Milkweed

American Beauties Native Plants

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  • Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
  • Mature Height 3 - 4 Feet
  • Mature Spread 3 - 4 Feet
  • Growing Zones 3 - 8

Milkweed is the plant that attracts and supports the most butterfly species. Each variety of Milkweed is specific to species. Swamp Milkweed attracts mainly Monarch and Queen butterflies to lay their eggs and support the caterpillars with their foliage. The showy pink blooms also attract other insect pollinators throughout the summer. The only creature MIlkweed does not attract is deer.

Swamp Milkweed is a common addition to an open meadow planting, but is also lovely in a Cottage Garden or as a backdrop in a mixed perennial border. Asclepias are native to the Baja area of Southern California and Arizona, although they are not the most drought tolerant plants. They originate from along rivers and flood plains, making them a good addition to a Rain Garden plan that could also double as a butterfly habitat.

Swamp Milkweed Care

Swamp Milkweed prefers a rich, well drained soil that will help to support vigorous foliage growth. An open, sunny spot is also preferred. Soil pH and texture can be average. A mulching of organic compost in the fall will help to improve the soil's moisture holding capacity and provide added nutrients that this perennial needs.

Swamp Milkweed only needs a cutting back late in the winter before new growth emerges. Seed heads left to stand through the winter provide food for birds and will help the MIlkweed to self seed and naturalize. Dividing is not usually done. The late cleaning of the old growth also provides for the butterflies to hatch in the spring and move on to new growth to feed and develop into cocoons. Swamp Milkweed is best planted in an area that will be quiet and not have a lot of traffic. Dividing is not usually done with Milkweed. The plant forms a large taproot that does not like to be disturbed and will not survive relocation.

Swamp Milkweed Spacing

Swamp Milkweed has a mature height of 3-4 feet and a width of 10-12 inches. When planting in a large group, space plants at 12 inches on center. This will leave room for self wedding and spreading at a fairly quick rate.

Swamp Milkweed Information

USDA Hardiness Zones: 3 - 8
Plant Type: Perennials
Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
Mature Height: 3 - 4 Feet
Mature Spread: 12 - 24 Inches
Spacing: 12 - 24 Inches
Habit: Upright
Flower Color(s): Pink
Flower Description:
Bloom Period:
Foliage Type: Deciduous
Foliage Color(s): Green
Foliage Description:
Seasonal Interest: Summer Flowering
Watering: Average
Resists: Deer
Tolerates: Drought
Attracts: Bees, Butterflies, Hummingbirds
Container Role:
Uses: Borders, Mass Planting, Wildlife Gardens
Features: Attracts Pollinators, Fragrant, Low Maintenance, Native to North America
Brand: American Beauties Native Plants
Common Name: Swamp Milkweed
Other Name(s):

Container Sizes

Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on; type of plant, time of year, last pruning & many other factors.

4.5 Pot

4.5" Pot
 Also Know As:
   4.5" Container

 Plant Age:
   ~ 6 months
 Plant Size:
   ~ 3"-6"
 Pot Size:
   ~ 4.5"H x 3.75"W
   1.42 quarts

Quart Pot

Quart Pot
 Also Know As:

 Plant Age:
   ~ 1 year old
 Plant Size:
   ~ 4"-8"
 Pot Size:
   ~ 4.75"H x 4.5"W
   1.50 quarts

2.5 Quart

2.5 Quart
 Also Know As:
   2.5 Quart Pot

 Plant Age:
   ~ 1.5 year old
 Plant Size:
   ~ 8"-12"
 Pot Size:
   ~ 6.5"H x 6.5"W
   2.20-2.30 quarts

#1 Pot

#1 Pot
 Also Know As:
   #1 Container
    1 Gallon
 Plant Age:
   ~ 2 year old
 Plant Size:
   ~ 10"-14"
 Pot Size:
   ~ 7"H x 7.75"W
   2.26-3.73 quarts

#2 Pot

#2 Pot
 Also Know As:
   #2 Container
    2 Gallon
 Plant Age:
   ~ 2-3 year old
 Plant Size:
   ~ 12"-18"
 Pot Size:
   ~ 9.5"H x 9.5"W
   1.19-1.76 gallons

#3 Pot

#3 Pot
 Also Know As:
   #3 Container
    3 Gallon
 Plant Age:
   ~ 3-4 year old
 Plant Size:
   ~ 12"-30"
 Pot Size:
   ~9.5"H x 11"W
   2.32-2.76 gallons

For more detailed information, please click here.

Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether you’re new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and we’ll get you a new one shipped out. We may ask for photos for documentation purposes but again we’ll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

Guide: How to Care for Your New Plant(s)

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations

Plant Shipping

Time of Order:

Summer Shipping

  • If there is extreme heat we’ll delay shipping.  
    • We’ll have to review what areas the plants are traveling through along with your location

Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.

It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.

2 Reviews - Swamp Milkweed Show Reviews

  • 1

    Posted by Hornet on Sep 17, 2022

    Received a broken damaged plant. Took a week for them to agree to send a replacement. Waiting on the replacement to arrive hopefully in better condition.

  • 5
    I will order again soon!

    Posted by Megan Miller on May 24, 2022

    I ordered swamp milkweed and it has been great. They shipped quickly and packed very well. They are beautiful plants, I am looking forward to watching them grow.