Propagate polka-dot plant from a stem cutting. Cut a healthy 4-inch stem just below a node, strip the lower leaves, and set it in moist mix that drains.
Take a 4-inch stem cutting just below a node
| Factor | Recommended | Avoid |
|---|---|---|
| Cutting | A healthy 4-inch stem, cut just below a node, with a few leaves at the top | Do not pot a leafless scrap or a yellow, torn stem |
| Mix | A small pot with a hole, filled with barely moist mix that drains — peat mixed with perlite, sand, or vermiculite | Do not use garden soil, or a closed bowl without a hole |
| Cover | A loose clear bag in bright, indirect light, out of hot sun | Do not seal the pot in direct sun, which cooks the cutting |
| Wait | Keep the mix barely moist until new growth shows | Do not yank it up after a few days to check for roots |
The usual start for polka-dot plant is a stem cutting, not seed. [1] In spring or summer, choose a healthy stem about 4 inches long. Cut just below a node, and pull off any leaf that would sit under the mix. Fill a small pot that has a hole with barely moist mix that drains, and push the stem in so at least one node is under the surface. [2] Slip a loose clear bag over the pot so the mix does not dry, and keep it in bright, indirect light. After the cutting resists a gentle tug, water it as you would an established plant on How to Grow Polka Dot Plant. [3]
- Cut a healthy 4-inch stem just below a node.
- Pull off the lower leaves so no foliage sits in the mix.
- Push the stem into barely moist mix that drains, in a small pot with a hole, so a node is under the surface.
- Cover it loosely, keep it in bright, indirect light, and wait until it holds before you pot it on.
How do I take a polka-dot plant cutting?
Cut a 4-inch stem just below a node, strip the lower leaves, set it in moist mix that drains, and wait until it holds.
Root it in water if you want to watch the roots
You can stand the same cutting in a jar of water instead, with the node under water and the leaves above it. Change the water every few days. When the roots are about 1 to 2 inches long, pot the cutting in the same draining mix, and keep the mix barely moist while it settles. [4] Mix usually makes a sturdier start, so use water if you want to see the roots, then move it on.
Divide a crowded clump in spring
A mature plant that has filled its pot can be split in spring. Tip it out, tease the root mass into two or three pieces that each have three or more stems and roots, and pot each piece in fresh mix at the same depth. Water until it runs through, then empty the saucer.
- Tip the plant out and split the root mass so each piece has several stems and roots.
- Pot each piece in fresh mix that drains, at the same depth as before.
- Water until it runs through, then empty the saucer and keep the mix barely moist while new growth shows.
Can I root it in water?
Yes. Stand a node in clean water with the leaves above the surface, change the water every few days, and pot it when the roots are about 1 to 2 inches long.
Cut a 4-inch stem, set it in moist mix that drains, and wait until it holds. Water-rooting can wait.
FAQ
How long until the cutting roots?
In moist mix, wait until new growth shows and the stem holds a gentle tug. In water, roots often show in a couple of weeks. Wait until they are about 1 to 2 inches long before you pot it on.
Do I need rooting hormone?
No. A 4-inch stem usually roots without it. Moist mix, a loose cover, and warmth matter more.
Can I grow it from seed instead?
Yes. Surface-sow is a separate job on Growing Polka Dot Plant from Seed.
Related guides
Recommended plants
References
- [1] Wisconsin Horticulture -
https://hort.extension.wisc.edu/articles/polka-dot-plant-hypoestes-phyllostachya/ - [2] Royal Horticultural Society -
https://www.rhs.org.uk/plants/hypoestes/how-to-grow-hypoestes - [3] NC State Extension -
https://plants.ces.ncsu.edu/plants/hypoestes-phyllostachya/ - [4] Almanac -
https://www.almanac.com/plant/polka-dot-plant
This note is part of Hypoestes Guides.
More notes on making another plant live in Propagating Guides.
Updated: Reviewed by Bosquelle Editors