Light
Bright, indirect
Ideal spot
Tradescantia pallida · Trailing plant
Bright, indirect
Ideal spot
about weekly
In the growing season
Easy
Fast grower
Mildly toxic
Cats & dogs
Purple Heart (Tradescantia pallida) belongs to the Commelinaceae family and is a easy houseplant to look after. This fast grower plant is happiest in bright, indirect and reaches 15–60 cm indoors.
For watering, the rule is simple: let the top dry out. In the growing season it needs water roughly every 5 days, dropping to every 9 days in winter. Use the watering calculator below to tune that rhythm to your pot size, light and household humidity.
Important: Purple Heart is mildly toxic to pets — keep it out of reach of cats, dogs and children.
Set your pot size, light and humidity — the calculator tunes the watering rhythm to your home.
Light at the spot
Humidity
Season
Water Purple Heart
every 5 days
≈ about weekly · 6× per month
Let the top 2–3 cm dry and finger-check before watering again.
Purple Heart prefers bright, indirect but will cope with medium, indirect. Harsh midday sun can scorch sensitive leaves, while too little light leads to leggy, sparse growth.
Keep Purple Heart between 15–26 °C and aim for around 55% humidity (40% minimum). Below 8 °C it risks cold damage — keep it away from draughty windows and radiators.
15–26 °C
Not below 8 °C
55%
40% minimum
Let the top dry out
Soil between waterings
Pot Purple Heart in standard free-draining houseplant mix. A drainage hole is essential — soggy, airless soil is the single most common way houseplants die.
The sap can cause skin dermatitis in pets and people; the ASPCA lists Tradescantia as toxic (mainly irritant), so wash hands after pruning.
The best ways to propagate Purple Heart are stem cuttings and water-rooting nodes. Late spring and summer are ideal, when the plant is growing most actively.
Pinch the growing tips often: the more you cut a wandering dude back, the bushier and more vividly striped it grows.
In the growing season Purple Heart needs watering about weekly (about every 5 days in a 16 cm pot at medium light), and much less in winter — roughly every 9 days. Use the watering calculator above to get the exact interval for your conditions.
Purple Heart thrives in bright, indirect. A spot near a bright window out of harsh midday sun is ideal; give it a little more light in winter.
Purple Heart is mildly toxic to pets. The sap can cause skin dermatitis in pets and people; the ASPCA lists Tradescantia as toxic (mainly irritant), so wash hands after pruning.
The most common problem with Purple Heart is leggy growth. Check your watering and drainage first — most issues trace back to too much or too little water.
The best ways to propagate Purple Heart are stem cuttings and water-rooting nodes. Late spring and summer are ideal, when the plant is growing most actively.
Indoors Purple Heart typically reaches 15–60 cm. With the right light and occasional repotting it stays compact and bushy.
Care data last verified on 15 June 2026.
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