PlantParlourInch plant (Tradescantia zebrina) care
Vines & trailers · easy to keep
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Inch plant (Tradescantia zebrina) wants bright indirect light; the colours need it. Water it every 5 days. Keep the compost lightly damp. It wilts fast and recovers fast, but repeated wilting costs it the lower leaves. Pot it in standard compost with perlite. A balanced feed at half strength monthly in spring and summer, and repot once a year. Humidity: room humidity is fine. Mildly toxic to cats and dogs; the sap can also cause a skin rash in people who handle it a lot.
Inch plant: fast-trailing stems with purple-backed leaves striped in silver. It grows at a rate that makes it disposable — root a handful of cuttings each spring, throw the tired parent out, and you always have a full pot. The colour only holds in bright light.
Quick facts
- Water
- Water every 5 days. Keep the compost lightly damp. It wilts fast and recovers fast, but repeated wilting costs it the lower leaves.
- Light
- Bright indirect light; the colours need it.
- Humidity
- Room humidity is fine.
- Soil
- Standard compost with perlite.
- Feeding
- A balanced feed at half strength monthly in spring and summer.
- Repotting
- Repot once a year.
- Toxic to pets
- Mildly toxic to cats and dogs; the sap can also cause a skin rash in people who handle it a lot. The ASPCA does not list Tradescantia zebrina itself, but lists a relative, Inch Plant (Tradescantia flumeninsis), as toxic to cats and dogs (checked 26 October 2026).
- Difficulty
- Easy.
- Mature size
- Trails to 1 m.
- Native to
- Mexico and Central America.
Watering an Inch plant
Water every 5 days. Keep the compost lightly damp. It wilts fast and recovers fast, but repeated wilting costs it the lower leaves.
That cadence is the one PlantParlour sets for this species when you name it, and it is deliberately on the cautious side — a plant that asks a day early is safer than one that asks a day late. Log each watering and the reminder moves with the plant rather than with the calendar.
Light
Bright indirect light, with an hour of direct sun welcome. The purple, pink and cream stripes wash out to plain green in a dim spot faster than almost any other houseplant.
Humidity and temperature
Room humidity is fine. Central heating in winter is what turns a comfortable room into a dry one, and it is the usual reason an established plant suddenly browns at the edges or picks up spider mites.
Soil and potting
Ordinary potting compost with perlite. Tradescantias are unfussy and grow at a speed that makes the mix almost irrelevant.
Feeding
A balanced feed at half strength monthly in spring and summer. Stop feeding in autumn and start again when you see new growth in spring — feeding a plant that isn't growing just builds up salts in the pot.
Repotting
Repot once a year. Every spring, or simply start again from cuttings — a tradescantia is at its best in its first year and goes bare in the middle in its second.
Common problems
-
Bare leggy stems with leaves only at the ends
Normal growth habit plus too little light.
Fix: Pinch the tips out regularly and root the cuttings back into the same pot. Move it brighter.
-
Stripes fading to green
Not enough light.
Fix: Move it brighter and cut out any wholly green stems — they outgrow the variegated ones.
-
Brown crisp leaves
It dried out.
Fix: Water more often; tradescantias are thirstier than they look.
Propagation
Absurdly easy. Any piece of stem roots in water in a week, or push several cuttings straight back into the parent's pot to keep it full.
A cutting taken in PlantParlour keeps its link to the plant it came from, so a propagation years later still traces back to the mother plant — which is the point if you ever sell or trade it.
Toxicity and safety
Mildly toxic to cats and dogs; the sap can also cause a skin rash in people who handle it a lot.
The ASPCA does not list Tradescantia zebrina itself, but lists a relative, Inch Plant (Tradescantia flumeninsis), as toxic to cats and dogs (checked 26 October 2026).
If your pet has eaten a plant, call your vet, the ASPCA Animal Poison Control Center on (888) 426-4435, or the Pet Poison Helpline on (855) 764-7661. Both are open around the clock and may charge a consultation fee. Take the plant or its label with you.
This is general information, not veterinary advice. We don't test plants: what we say about toxicity follows the ASPCA's published plant list as it stood on 26 October 2026, and that list can change. "Non-toxic" means not poisonous — a pet that eats enough of any plant can still vomit, and fertiliser, pesticide or leaf shine on a plant can harm it. It also only helps if the plant is what you think it is. It covers cats and dogs only; ask your vet about rabbits, birds, reptiles or anything else, and a doctor about children. Read our terms.
Every houseplant in the library the ASPCA lists as non-toxic to cats and dogs
Named cultivars and variegations
Tradescantia zebrina is sold under several cultivar names. Care is the same unless noted; variegated forms carry less chlorophyll, so they grow more slowly and want more light than the plain species.
| Cultivar | Also sold as | Water |
|---|---|---|
| 'Quadricolor' | Quadricolor inch plant | every 5 days |
Where the variegated forms are grown differently from the plain Tradescantia zebrina:
'Quadricolor'
Cream and pink stripes added to the zebrina's silver and purple. Unstable: some stems come out plain.
Light: Bright indirect light with an hour of direct sun. It loses its cream and pink faster than plain zebrina in a dim spot.
Watch for: New leaves coming in plain green. The stem is reverting: green tissue grows faster than the cream and pink, and a stem that has made one plain leaf will usually go on making them. Give it more light, and cut the stem back to a node below the last leaf with good variegation; growth from that node carries the pattern on.
Questions people ask
How often should you water an Inch plant?
Water every 5 days as a starting point — that is the cadence PlantParlour sets for Tradescantia zebrina. Keep the compost lightly damp. It wilts fast and recovers fast, but repeated wilting costs it the lower leaves. Light, pot size and the time of year all move that number, so treat it as a reminder to go and check rather than a rule.
How much light does an Inch plant need?
Bright indirect light, with an hour of direct sun welcome. The purple, pink and cream stripes wash out to plain green in a dim spot faster than almost any other houseplant.
Is Inch plant toxic to cats and dogs?
Mildly toxic to cats and dogs; the sap can also cause a skin rash in people who handle it a lot. The ASPCA does not list Tradescantia zebrina itself, but lists a relative, Inch Plant (Tradescantia flumeninsis), as toxic to cats and dogs (checked 26 October 2026). If a pet has eaten part of a plant, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 straight away.
How do you propagate an Inch plant?
Absurdly easy. Any piece of stem roots in water in a week, or push several cuttings straight back into the parent's pot to keep it full.
Related plants
- Tradescantia 'Tricolor'
- Tradescantia nanouk
- Tradescantia pallida
- Tradescantia fluminensis
- Tradescantia spathacea
- Hoya carnosa
- Hoya 'Publicalyx Splash'
- Hoya 'Australis Lisa'
Or browse every plant in the library.
Keep this plant's record
PlantParlour gives your Inch plant its own page: a photo timeline, reminders set to the cadences above, and every watering, feed, repot and problem written down. Trade or sell it and the whole history goes with it.
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