How To Grow Milkweed Plants From Cuttings

Milkweed Cuttings Make Plant Propagation A Snip

Though seed starting has its place, I never realized all the unnecessary time I was wasting until I started growing tropical milkweed(s) from cuttings.
How To Grow Milkweed from Cuttings- Asclepias Curassavica All Summer Long
Have Blooms Like This All Summer

While starting seeds indoors always gave me satisfaction of seeing my baby plants magically transform each summer, there were definitely lots of growing pains along the way:

  • Bad seeds can put your garden way behind schedule (or force you to buy plant$)
  •  

  • Seedlings can get leggy unless you use anto promote stronger stems
  •  

  • Fragile seedlings can die inside
  •  

  • Fragile seedlings can die during outdoor transplanting
  •  

  • Seedlings can drown, bake, or get blown away
  •  

  • Did I mention our  rambunctious four-legged friends?…Oh Deer!
2 seedlings VS 1 milkweed cutting started at the same time
A Cutting Above The Rest

While milkweed seeds can do the job, they just don’t measure up to cuttings…especially in the case of annual varieties (for most) like balloon plant (Asclepias physocarpa), and tropical milkweed (Asclepias curassavica).

After your first season starting milkweed seeds, you’ve basically won the ‘milkweed lotto’ for life if you take advantage of your mature plants…you won’t even have to pay taxes!

Tropical milkweed varieties are prime species for winter cuttings since they can be overwintered indoors. When trying to propagate native milkweed, it’s easier to take summer cuttings for outdoor fall planting.

Milkweed Cuttings Benefits

  • No pots, no soil, no mess if you keep the cuttings in water
  • Doesn’t require grow lights, window placement will suffice
  • Require minimal care compared to seeds
  • Cuttings will grow, flower, and seed much quicker than seedlings
  • Cuttings are strong, sturdy, and dependable for transplanting
  • Plant cuttings are the gift that keeps giving…100% free!

Check out this quick how to grow from cuttings video to see how much simpler your milkweed prep can be:

 

Tips to Grow from Cuttings- UPDATED 2014

 

  • You can take cuttings from milkweed varieties including Asclepias curassavica (tropical mw), Asclepias physocarpa (balloon plant), Asclepias incarnata (swamp mw), Asclepias tuberosa (butterfly weed)
  •  

  • Tropical milkweed (A. curassavica) and balloon plant (A. physocarpa) cuttings can be rooted in water (trying native varieties summer 2014)
  •  

  • Root overwintering plants anytime between January and March. Start at least one month before planting outside
  •  

  • Fill cuttings containers (I use 20oz clear plastic cups) with distilled water (not tap water) because it has a neutral PH level and no additives or elements that could potentially harm developing plants
  •  

  • Place plastic wrap over each cup and secure it with a rubber band
  •  

  • Use gloves to avoid getting milkweed sap in your eyes later….OUCH!
  •  

  • Make sure you only take milkweed cuttings from your healthiest plants
  •  

  • Take cuttings under water or rinse cut area afterwards to insure water uptake
  •  

  • Use a hand pruner or scissors
  •  

  • Cut at an angle just below a leaf node (while this is not as important for tropical milkweed, it’s a good habit to get into for taking cuttings in general)
  •  

  • Your stem cutting should be roughly 4″ long or 3-5 leaf nodes
  •  

  • Pinch off all but the top leaves by gently pulling down. Leaves submerged in water can cause bacteria and give off an unpleasant odor
  •  

  • Pierce each cutting through the plastic, except for the top stem and leaves. The cuttings should not be touching the bottom of the glass
  •  

  • Place cuttings by a window that gets at least a couple hours of sun daily sun. 2-3 hours has worked well for me
  •  

  • Change cutting water and rinse out container every week to avoid fungus and disease
  •  

  • Cuttings can be potted or transplanted after 1-2 months (or after you see a few roots emerging from them)
  •  

  • Fall cuttings give you a huge head start and more cuttings to choose from (however, you’ll have to pot the plants indoors after a couple months to prevent rotting)
  •  

  • If stems start rotting transplant into potting soil and place by a window that gets (at least) two hours of sunlight per day. For more rigorous growth, place under grow lights or increase sun exposure

How To Grow Tropical Milkweed Cuttings in Water

There are more advanced hydroponic systems to grow from cuttings, but this is a simple and effective way to explode your home milkweed supply.

Print Friendly

Comments

    • says

      Hi LeeAnn, definitely not a silly question! I’m not sure if there’s a “right” answer to this. If you don’t have a true “hydroponics” set up, the longer they are left in water, the more likely the stems could rot. You have plenty of options though.

      1. Taking cuttings from a potted plant (end feb/early Mar)
      2. Take fall Cuttings and after a couple months in water, pot them
      3. Use a hydroponic system to prevent disease issues

      I am experimenting with #3 this fall and will post about my new set up. Starting with cuttings can give you a fantastic (and free) head start on the season, Tony

  1. Tim Hoover says

    I’m very interested in rooting Asclepias tuberosa. You mention leaving the cuttings in the water for a few months. Do you change the water/ad as it evaporates? How frequently?

    • says

      Hi Tim, I am using a new hydroponic system this fall to prevent root rot and I will be posting about this as I set it up. If you sign up for my newsletter in the top right column, you’ll be alerted as soon as this info is posted.

    • says

      Hi Tim, if you are leaving the cuttings in plain water, it does need to be changed weekly to avoid stem rot. It’s best to take fall cuttings for tuberosa, although some people successfully grow it in pots.

      I will be experimenting with summer/fall cuttings of tuberosa this year. Because of weather and deer, 2013 was a catastrophic year for our tuberosa. Hoping for a big turnaround in 2014…

      • says

        Tim, I’m replying again while I’m thinking about this. I will be experimenting with tuberosa/incarnata next summer/fall, but the info I’m finding suggests dipping those cuttings in rooting hormone and planting in soil.

        I’ll let you know when I have the definitive answer…

        • Bird says

          So after cutting it just dip the cut ends in something like miracle grow and put it directly in soul? That would be cool, there are some really large milkweed bushes, very full, I was going to find who’s property it was on and ask if I could dig it up and transplant in my yard, but this way I can just get a few starters off of it.

          • says

            Hi Bird,

            I have always rooted tropical milkweed in water, but I have heard it can also be planted directly in soil. You might want to use rooting hormone to increase your odds of success. If you are talking about native milkweed, butterfly weed can also be rooted in water and soil. I’m trying some experiments with swamp milkweed and will report those findings in another post…

  2. Tommy says

    Can you grow swamp milkweed or any others hydroponically? Like not just to root cuttings, but to actually grow the whole plant and have it thrive. The reason I ask is because I’m always looking for new, unusual riparium candidates. An added bonus with using cuttings for this purpose, is that I essentially don’t have to pay for the plant.

    • says

      Hi Tommy, both swamp and tropical can be rooted in water. I don’t have a true hydroponic system so I only left mine in a couple months. I know someone that rooted tropical in water and grew the plant over the entire winter until it flowered so I know this works with tropical. Swamp will root in water, but not sure about flowering. Tropical blooms the entire season while swamp has a “bloom period”. Sounds like a good experiment!

  3. Jamie says

    This really is a very easygoing plant. Cuttings quickly grew out roots in water, and now are are growing (small) new leaves/spindly branches as well. But several months to go before they’d be ready to use in our cooler climate. In your experience, should overwintering cuttings be trimmed periodically? Or left alone? Or cut back when re-planted in the Spring?
    Thanks.

    • says

      Hi Jamie,

      I am actually using a new hydroponics system this fall and will be posting about it soon. If you leave the cuttings in a plain glass of water, it’s possible that the stems will rot. I didn’t have an issue with this my first year, but last winter I did.

      I have never trimmed my plants back, but they didn’t get much light and their wasn’t a ton of growth. This winter could be different. Tropical milkweed will bloom while being overwintered so you might not want to trim it back.

      Regardless, I do trim them back before replanting them. For potted plants, I place them outside in lots of shade so they can get re-acclimated to an outdoor climate. If you put them out in sun right away the leaves will burn and then you HAVE to trim.

      Cuttings are FAR easier than starting seeds. I will post about hydroponics in the next week or so…

      • Jamie says

        Thanks so much for sharing your experience.

        Looking at the multiple water-root locations, can’t help but wonder if Tropical Milkweed would be like a tomato plant: if you buried a long part of the stem, would it just root all along it? (Probably could have tried it if the the last plant hadn’t been “diced” for cuttings…)

        Good luck with the hydroponics experiments. Will look forward to your postings.

        • says

          Hi Jamie,

          maybe that’s something to test next spring. Tropical roots easily in water though. They’ll likely have a higher survival rate with some roots already established. Going to the hydroponics store this week…will keep you posted!

  4. Nelson says

    What if your plant has flowered and show a seed pod? Can you use that for a cutting or cut from a stalk that has not flowered?

    • says

      Hi Nelson, since tropical milkweed doesn’t have a growth cycle like other milkweeds (it blooms continuously) you can take cuttings from it any time. I have used stalks from flowering buds before. Whatever I use, I take off all foliage/flower growth except the top two leaves to insure the cutting puts energy into rooting.

  5. Jennifer Gallagher says

    Great u tube video, Tony on how to make use of milkweed by cuttings. I will definitely be trying this since milkweed is becoming so difficult to find! Thank You!

    • Bird says

      Jennifer, it was hard to find around here too. I bought milkweed seeds from Monarch Weighstation and Monarchway, I got alot, and the last couple years I have been planting it all over Fostoria. I talked to the city parks and told them I need to know where they don’t spray, just a little bug spray will kill those lovely catapillers, and I planted them there. I gave some to the school and they made it an educational experience for their students and even had me come speak about how important it is and what to look for so not to hurt the Monarch eggs. Now, I always have milkweed to find.

Leave a Reply

Your email address will not be published. Required fields are marked *