Inch plant (Tradescantia zebrina) care

Vines & trailers · easy to keep

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.
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.

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

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?