Plant care
Solanum crispum 'Glasnevin'temperature & humidity
Solanum crispum 'Glasnevin'
More about solanum crispum 'glasnevin'
Ideal temperature for solanum crispum 'glasnevin'
Temperature kills fewer solanum crispum 'glasnevin' 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 -5 to 25°C (23 to 77°F) is fine; the spot you put the plant in matters more. Below roughly -5°C growth pauses; cold beyond that pushes it into dormancy rather than killing it outright.
Cold tolerance & winter care
Solanum crispum 'Glasnevin' is comparatively hardy (USDA 8-10, RHS H4). Within that range it tolerates a cold dormant spell outdoors; outside it, grow it in a container you can move under cover or overwinter in a cool but frost-free spot. Hardiness assumes an established plant in well-drained soil — a wet, cold root zone kills far more plants than cold air alone.
Humidity for solanum crispum 'glasnevin'
Solanum crispum 'Glasnevin' sits happiest at around Ambient outdoor relative humidity. An outdoor wall climber with no special humidity needs; benefits from the air movement of an open, sunny aspect to keep foliage dry and discourage fungal problems. 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.
Solanum crispum 'Glasnevin' temperature & humidity — frequently asked questions
What temperature is best for solanum crispum 'glasnevin'?
Solanum crispum 'Glasnevin' grows best between -5 to 25°C (23 to 77°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 solanum crispum 'glasnevin' tolerate?
Solanum crispum 'Glasnevin' starts to suffer below roughly -5°C. It tolerates a cold dormant period within USDA 8-10, but a wet cold root zone is more dangerous than cold air.
What humidity does solanum crispum 'glasnevin' need?
Solanum crispum 'Glasnevin' prefers about Ambient outdoor relative humidity. An outdoor wall climber with no special humidity needs; benefits from the air movement of an open, sunny aspect to keep foliage dry and discourage fungal problems.
How do I raise humidity for solanum crispum 'glasnevin'?
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 solanum crispum 'glasnevin' live outside?
Solanum crispum 'Glasnevin' is rated for USDA zone 8-10 and RHS hardiness H4. Within that range it can stay outdoors; outside it, grow it in a moveable container and protect the roots from a wet, cold winter.
More solanum crispum 'glasnevin' care
In the UK? Keeping solanum crispum 'glasnevin' warm in a UK home covers the radiator, single-glazing and heating-season humidity angle. Temperature and humidity are one piece. See the full solanum crispum 'glasnevin' care guide, its cold-hardiness guide, and watering schedule — humidity and watering problems are easy to confuse.