Is is easy to grow sweet potato vine by taking cuttings from existing plants and rooting them in water. Use this method to fill out your summer planters or take cuttings to grow plants indoors during the winter.
You can also grow clematis and honeysuckle vines from cuttings and more help for growing from seeds and cuttings.
Grow Sweet Potato Vine Cuttings
Ornamental sweet potato vine never goes out of style. It’s bright, beautiful, fast-growing, and adds a punch of cheer to any garden container.
And better yet, it’s easy to grow more from cuttings.
This easy-going plant can grow in soil or water so your options are wide open.
You can also use it as a houseplant, though it can be attractive to various pesky flies that hold parties indoors, so beware of that.
I’ll show you how I propagate it in jars of water.
Supplies
Some product links may go to affiliate accounts like Amazon.com but I always suggest you check your own cupboards first or buy locally.
- Ornamental sweet potato vine (lime green is the most common colour but also check for the darker varieties too).
- Scissors or fine garden snippers (clean with rubbing alcohol, bleach (1 part bleach:9 parts water) or your favourite garden-friendly disinfectant).
- Jars or vases with warm water.
Step 1 – Take a cutting below a leaf node
What is a leaf node? It’s the location on the plant where a leaf grows out of the main stem. When leaves are removed, roots can grow in their place. Cool, right?
I like to have about 6-8″ of vine to use for a cutting.
Using clean scissors (I keep rubbing alcohol handy), clip off a piece of vine just below a leaf node.
Roots will sprout wherever nodes have contact with water.
Step 2 – Pinch off lower leaves
See all the leaf node stubs in the image (above)?
I’ve removed the leaves to expose the entire section that will sit in water.
New roots will form at those nodes.
Just don’t submerge any leaves: they will rot.
Step 3 – Place the stems in fresh, warm water
Warm water is a key to successful gardening. Plant roots do not like the cold the same way we don’t like cold feet.
I keep the jars in a slightly shaded area. They don’t need a lot of sun and you don’t ever want the water evaporating and exposing the roots.
After a week or so, you’ll see white roots start to form at the former leaf node locations.
Some sweet potato vines grow really fast—with tons of roots—and others take their sweet time.
Either way, it’s a tough plant to kill. And I hope I didn’t just jinx your efforts by saying that.
Step 4 – Replace the water every few days
You don’t want the water getting gross or murky so keep it fresh. You can use the old water to water other garden plants.
You might notice the remaining leaves wilt slightly for a few days. Don’t panic. They should get perky again soon.
Related: Cold Storage 101: Food Preservation Tips
Step 5 – Plant them in containers or keep them in jars
When the roots are at least 3″ long, you can plant your vines in containers (use potting mix, not garden soil) or continue growing them in jars.
Various insects will nibble on the leaves but it’s rarely tragic. You can see tiny bite marks in the image below. No big deal. They seem to nip and run.
Grow Sweet Potato Indoors
As mentioned, you can bring the cuttings indoors and keep them going all winter long (either in containers with proper container mix) or in water jars or vases.
They can attract whiteflies and other tiny insects so keep this in mind. I like to keep a fan running for good air circulation and to discourage indoor soil pests.
You could also overwinter them in a heated greenhouse so long as the temperature remains moderate (not cool and definitely not freezing).
Last year I tried keeping the cuttings in water all winter long in our house. The plants grew like crazy and lasted right through until April when they started to brown.
I hope you’ll give this a try. It’s a super fast way to get more plants from the purchase of just a few!
~Melissa the Empress of Dirt ♛
What Else Can You Grow From Cuttings?
Free Printable Garden Calendar:
List of plants you can grow from cuttings in spring, summer, and fall.
More Propagation Tips
Brenda Rodriguez says
Good day, I started two black sweet potato cuttings. I had nice root growth after a month in water and then planted them in soil I did not however, make sure they were a leader branch as I did with the green vine. So I have two nice “single” leaf plants going. I can see the roots which have reached the bottom of the container, I can see them as the container with soil is clear. My question is; will the top ever grow additional leaves? Have I made an error? The green clippings have already grown quite a bit and I have since taken another cutting from those. Help.
Melissa J. Will says
Sorry, I don’t have experience with this to know.
Hugh says
Hi, I made about 20 cuttings and put them in water. The roots are growing well but the leaves at the top not covered in water are turning brown and falling off. Is that normal? Thanks
Melissa J. Will says
Are they getting too much sun?
Hugh says
I put them near a window inside a shed and they get about 6 hours of sun
Melissa J. Will says
Could just be too much sun. Remove all dead parts and keep in filtered light.
Nakita doane says
Had success last year with propogation of the vines from a “mama” plant. I am currently trying to grow from sweet potatoes, they have roots but no leaves / shoots yet. Any suggestions?
Melissa J. Will says
Hi Nakita, I haven’t tried it but if I’m remembering right, you have to plant the rooted sweet potato in soil and allow time for it to send shoots up above the soil. Those shoots (or slips, as they are called) can then be propagated.
Saquib says
Can I use normal potato instead of sweet potato?
Melissa J. Will says
No. 🙂
Saquib says
I’m from India and in India I don’t get sweet potatoes with eyes..so how can I grow eyes on sweet potato
judy gaaskjolen says
My Sweet Potato Vine, got a few flowers this year. They are pink,similar to a petunia. Have you seen this?
Melissa J. Will says
Yes, I was taking care of a friend’s indoor sweet potato vines this summer and they were covered in blooms.
Sheila says
I bought a s
sweet potato from the greengrocer. Cut it in half and stuck both halves into a hanging basket and in a couple of weeks had multiple shoots. So easy!
Lilly says
Did you stick them in water or soil???
Melissa J. Will says
Hi Lilly, Water– as shown in the photos in this post.