Plant care
Eleocharis sp. 'Mini'temperature & humidity
Eleocharis sp. 'Mini'
More about eleocharis sp. 'mini'
Ideal temperature for eleocharis sp. 'mini'
Temperature kills fewer eleocharis sp. 'mini' plants than you'd think. What kills them is the micro-climate within a normal-temperature room — a leaf pressed against single-glazed winter glass, the hot dry updraft directly above a radiator, the cold blast from an AC vent. The thermostat reading at 20-28°C (68-82°F) is fine; the spot you put the plant in matters more. Below roughly 20°C the damage starts — soft blackened patches, translucent leaves, sometimes overnight.
Cold tolerance & winter care
Eleocharis sp. 'Mini' is frost-tender (USDA Tropical aquarium plant; not frost-hardy, kept indoors in heated aquaria, RHS undefined). It cannot survive a frost, so in most of the US and UK it lives indoors year-round or summers outside and comes back in well before the first autumn frost — once nights drop toward 10-12°C is the cue, not the first frost warning. Acclimate it over a week when moving between indoors and out so the leaves do not shock.
Humidity for eleocharis sp. 'mini'
Eleocharis sp. 'Mini' sits happiest at around 100% (submersed) relative humidity. As a submersed aquatic, humidity is not a factor underwater. The emersed (out-of-water) farmed form needs near-saturated humidity to survive until converted to its submersed leaves. The usual low-humidity tell is crisp brown leaf tips and edges while the soil moisture is fine — a sign the air, not the watering, is the problem. If you need to raise it, the reliable methods are grouping plants together, standing the pot on a tray of damp pebbles (the pot above the waterline, never in it), or running a small humidifier in winter when indoor heating dries the air most. Misting is the least effective — it raises humidity for minutes, not hours.
Eleocharis sp. 'Mini' temperature & humidity — frequently asked questions
What temperature is best for eleocharis sp. 'mini'?
Eleocharis sp. 'Mini' grows best between 20-28°C (68-82°F). Keep it out of cold draughts, off freezing windowsills in winter, and away from the hot dry air directly above radiators — the extremes matter far more than the average room temperature.
How cold can eleocharis sp. 'mini' tolerate?
Eleocharis sp. 'Mini' starts to suffer below roughly 20°C. It is frost-tender and will be damaged or killed by a frost, so bring it indoors once nights fall toward 10-12°C.
What humidity does eleocharis sp. 'mini' need?
Eleocharis sp. 'Mini' prefers about 100% (submersed) relative humidity. As a submersed aquatic, humidity is not a factor underwater. The emersed (out-of-water) farmed form needs near-saturated humidity to survive until converted to its submersed leaves.
How do I raise humidity for eleocharis sp. 'mini'?
Group it with other plants, stand the pot on a tray of damp pebbles (kept above the waterline), or run a small humidifier in winter. Misting only helps for a few minutes, so it is the weakest option for a plant that genuinely needs more humidity.
Can eleocharis sp. 'mini' live outside?
Eleocharis sp. 'Mini' is rated for USDA zone Tropical aquarium plant; not frost-hardy, kept indoors in heated aquaria. Outside that range it must come indoors before the first frost — treat any outdoor stint as a summer holiday, not a permanent home.
More eleocharis sp. 'mini' care
In the UK? Keeping eleocharis sp. 'mini' warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full eleocharis sp. 'mini' care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.