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How to Grow Sweet Potato Vine from Cuttings

July 30, 2019 ♛ By Melissa J. Will

This post contains affiliate links.
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Jump to Instructions

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.

Sweet potato vine cuttings in jars of water.

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 color but also check for the darker varieties too).
  • Scissors or fine garden snippers (clean with rubbing alcohol, or bleach solution (4 teaspoons bleach per quart or liter of water).
  • Jars or vases with warm water.

1Take a cutting below a leaf node

It's very easy to grow sweet potato vine from cuttings. This is a great way to get more free plants for your garden.

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.

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2Pinch off lower leaves

It's very easy to grow sweet potato vine from cuttings. This is a great way to get more free plants for your garden.

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.

Grow: Sweet Potato Vine Growing Tips and Ideas



3Place the stems in fresh, warm water

It's very easy to grow sweet potato vine from cuttings. This is a great way to get more free plants for your garden.

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.



4Replace the water every few days

It's very easy to grow sweet potato vine from cuttings. This is a great way to get more free plants for your garden.

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.

It's very easy to grow sweet potato vine from cuttings. This is a great way to get more free plants for your garden.

You might notice the remaining leaves wilt slightly for a few days. Don’t panic. They should get perky again soon.

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5Plant them in containers or keep them in jars

It's very easy to grow sweet potato vine from cuttings. This is a great way to get more free plants for your garden.

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.

It's very easy to grow sweet potato vine from cuttings. This is a great way to get more free plants for your garden.

Related: How to grow succulents from leaves and cuttings.


Grow Sweet Potato Indoors

How to Grow Sweet Potato Vine + Creative Display Ideas

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 ♛

Next

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How to Grow Sweet Potato Vine From Cuttings

Step-by-step instructions for taking a stem cutting from a sweet potato vine plant and rooting it in water to grow a new plant.
Steps15 mins
Total Time15 mins
Author: Melissa J. Will
Cost: $5

Supplies & Materials

  • 1 Sweet potato vine plant
  • 1 Water room temperature

Equipment

Snippers
Rubbing Alcohol
Mason jar

Instructions

  • Clean snippers with rubbing alcohol.
  • Take an 8-inch cutting by snipping below a leaf node.
  • Pinch off lower leaves from lower 4-inches of stem.
  • Place stem in mason jar of room temperature water, submerging leaf-less section of stem.
  • Replace water every few days.
  • When roots are at least 3-inches long, plant in potting mix.
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Melissa J. Will - Empress of DirtWelcome!
I’m Melissa J. Will
a.k.a. the Empress of Dirt
(Ontario, Canada).
Join me as I share creative + frugal home & garden ideas with a dash of humor.
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